RK3588-based core board

Abstract

The utility model belongs to the field of core boards, and relates to an RK3588-based core board, which comprises an RK3588, and a Type-C interface, an HDMI (High Definition Multimedia Interface) output interface, an HDMI input interface, a PCIE (Peripheral Component Interface Express) interface, a PCIE clock generation circuit, a power management integrated circuit, a real-time clock circuit, a DDR (Double Data Rate) filter circuit and a CPU (Central Processing Unit) working voltage power supply circuit which are electrically connected with the RK3588, the Type-C interface is used for data transmission, video output and power transmission between the core board and external electronic equipment, the HDMI output interface is used for connecting the core board with high-definition display equipment, and the HDMI input interface is used for receiving video input of an external HDMI signal source by the core board. The method is suitable for complex data processing and multimedia application, and the high-performance computing requirement is met; high-speed data transmission and video output are realized, power transmission is supported, and convenience and connection flexibility of equipment are enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to core board technical field, more specifically, relate to a kind of core board based on RK3588. BACKGROUND

[0002] There are indeed various categories of core boards based on RK3588 in the market, however, in terms of function expansion, the current technical implementation is relatively limited. A typical example is that although RK3588 supports video encoding and decoding up to 8K, and AI acceleration of 6TOPS, many core boards based on it do not adequately expand in terms of video processing or AI applications. These core boards often only provide basic video input and output interfaces and AI acceleration functions, without further optimization for specific application scenarios or the addition of additional functional modules. In addition, although RK3588 supports various storage expansions and rich interfaces such as SATA, SD card, EMMC, and HDMI, LVDS, RGB, USB, etc., in actual products, these interfaces are often not fully utilized or expanded. Many core boards simply provide the basic functions of these interfaces without further development or integration of more advanced functional modules.

[0003] Therefore, although there are many categories of core boards based on RK3588, there is still much room for development and potential in terms of function expansion. SUMMARY

[0004] To overcome the above-mentioned defects of the prior art, the utility model provides a core board based on RK3588, comprising:

[0005] RK3588, Type-C interface, HDMI output interface, HDMI input interface, PCIE interface, PCIE clock generation circuit, power management integrated circuit, real-time clock circuit, DDR filter circuit and CPU working voltage power supply circuit connected to the RK3588 by electricity, the Type-C interface is used for data transmission, video output and power transmission between the core board and external electronic equipment, the HDMI output interface is used for connecting the core board to high-definition display equipment, the HDMI input interface is used for receiving video input from external HDMI signal source by the core board, the PCIE interface is used for connecting components inside the computer, the PCIE clock generation circuit is used for generating stable clock signal for PCIE interface and its connected electronic equipment, the power management integrated circuit is used for providing stable voltage and current to ensure normal operation of the core board and its connected equipment, the real-time clock circuit is used for recording and tracking time, the DDR filter circuit is used for improving the quality of DDR memory signal, and the CPU working voltage power supply circuit is used for providing working voltage for CPU.

[0006] Preferably, the Type-C interface comprises: one end of the resistor R3834 is connected with the pin AH16 of the RK3588, the other end of the resistor R3834 is grounded, the pins AH14 and AJ14 of the RK3588 are respectively connected with the pin AH14 of the RK3588, one end of the capacitor C3973, one end of the capacitor C3974, the other end of the capacitor C3973 and the other end of the capacitor C3974 are all grounded, the pins AG14 of the RK3588 are respectively connected with one end of the capacitor C3975 and one end of the capacitor C3976, the other end of the capacitor C3975 and the other end of the capacitor C3976 are all grounded, the pin AG16 of the RK3588 is connected with one end of the resistor R1410, the other end of the resistor R1410 is grounded, the pins AH13 of the RK3588 are respectively connected with the pin AJ13 of the RK3588, one end of the capacitor C1404 and one end of the capacitor C1405, the other end of the capacitor C1404 and the other end of the capacitor C1405 are all grounded, the pins AG13 of the RK3588 are respectively connected with one end of the capacitor C1406 and one end of the capacitor C1407, the other end of the capacitor C1406 and the other end of the capacitor C1407 are all grounded.

[0007] Preferably, the HDMI output interface comprises: the pins AA9 of the RK3588 are respectively connected with one end of the capacitor C1715, one end of the capacitor C1751, the pin AB9 of the RK3588 and one end of the capacitor C1714, the other end of the capacitor C1715, the other end of the capacitor C1751 and the other end of the capacitor C1714 are all grounded, the pins AC7 of the RK3588 are respectively connected with the pin AC6 of the RK3588, one end of the capacitor C1716, one end of the capacitor C1717 and one end of the capacitor C1742, the other end of the capacitor C1716, the other end of the capacitor C1717 and the other end of the capacitor C1742 are all grounded, the pins AD9 of the RK3588 are respectively connected with one end of the capacitor C1735, one end of the capacitor C1752, the pin AC9 of the RK3588, one end of the capacitor C1729 and one end of the capacitor C1730, the other end of the capacitor C1735, the other end of the capacitor C1752, the other end of the capacitor C1729 and the other end of the capacitor C1730 are all grounded, the pins AD7 of the RK3588 are respectively connected with the pin AD6 of the RK3588, one end of the capacitor C1731, one end of the capacitor C1732 and one end of the capacitor C1733, the other end of the capacitor C1731, the other end of the capacitor C1732 and the other end of the capacitor C1733 are all grounded.

[0008] Preferably, the HDMI input interface includes: pin AF3 of the RK3588 is connected to one end of resistor R1730, the other end of resistor R1730 is grounded; pin AE8 of the RK3588 is connected to one end of capacitor C1738, the other end of capacitor C1738 is grounded; pin AE4 of the RK3588 is connected to pin AE5 of the RK3588, one end of capacitor C1740, and one end of capacitor C1741, the other ends of capacitor C1740 and capacitor C1741 are both grounded.

[0009] Preferably, the PCIe interface includes: pin B34 of the RK3588 connected to one end of resistor R1801, the other end of resistor R1801 grounded; pin G24 of the RK3588 connected to one end of capacitor C1802 and one end of capacitor C1803, the other ends of capacitors C1802 and C1803 both grounded; pin G23 of the RK3588 connected to one end of capacitor C1800 and one end of capacitor C1801, the other end of capacitor C1800 connected to capacitor C1801... The other end of each capacitor is grounded. Pin A33 of the RK3588 is connected to one end of resistor R1807, and the other end of resistor R1807 is grounded. Pin H24 of the RK3588 is connected to one end of capacitor C1814 and one end of capacitor C1815, respectively. The other ends of capacitor C1814 and C1815 are both grounded. Pin H23 of the RK3588 is connected to one end of capacitor C1812 and one end of capacitor C1813, respectively. The other ends of capacitor C1812 and C1813 are both grounded.

[0010] Preferably, the PCIe clock generation circuit includes: pin 1 of the PCIe clock generator chip U8102 is connected to one end of capacitor C8118 and one end of capacitor C8119 respectively; the other ends of capacitor C8118 and capacitor C8119 are both grounded; pin 2 of the PCIe clock generator chip U8102 is connected to one end of resistor R8110 and resistor R8112 respectively; pin 3 of the PCIe clock generator chip U8102 is connected to one end of resistor R8113 and resistor R8115 respectively; pin 4 of the PCIe clock generator chip U8102 is connected to one end of resistor R8118; and pins of the PCIe clock generator chip U8102... Pin 5 is connected to one end of capacitor C8128 and pin 1 of crystal oscillator Y8100. Pin 6 of PCIe clock generator chip U8102 is connected to one end of resistor R8121. The other end of resistor R8121 is connected to pin 3 of crystal oscillator Y8100 and one end of capacitor C8129. Pin 7 of PCIe clock generator chip U8102 is connected to one end of resistor R8128. Pin 8 of PCIe clock generator chip U8102 is connected to one end of resistor R8131 and one end of resistor R8132. Pin 10 of PCIe clock generator chip U8102 is connected to one end of resistor R8129. Pin 11 of PCIe clock generator chip U8102 is connected to one end of resistor R8133, and the other end of resistor R8133 is connected to one end of resistor R8135. Pin 12 of PCIe clock generator chip U8102 is connected to one end of resistor R8134, and the other end of resistor R8134 is connected to one end of resistor R8136. Pin 13 of PCIe clock generator chip U8102 is connected to one end of resistor R8123, and the other end of resistor R8123 is connected to one end of resistor R8125. Pin 14 of PCIe clock generator chip U8102 is connected to one end of resistor R8122, and the other end of resistor R8122 is connected to one end of resistor R8126. The PCIe clock... Pin 17 of the PCIe clock generator chip U8102 is connected to one end of resistor R8116, and the other end of resistor R8116 is connected to one end of resistor R8117. Pin 18 of the PCIe clock generator chip U8102 is connected to one end of resistor R8111, and the other end of resistor R8111 is connected to one end of resistor R8114. Pin 19 of the PCIe clock generator chip U8102 is connected to one end of resistor R8105, and the other end of resistor R8105 is connected to one end of resistor R8107. Pin 20 of the PCIe clock generator chip U8102 is connected to one end of resistor R8104, and the other end of resistor R8104 is connected to one end of resistor R8108.

[0011] Preferably, the power management integrated circuit includes: pin 4 of power management chip U3807C is connected to one end of capacitor C4097; pin 32 of power management chip U3807C is connected to one end of capacitor C4094, the negative terminal of diode D1, one end of resistor R3893, and one end of resistor R3892, respectively; pin 21 of power management chip U3807C is connected to one end of capacitor C4090; pin 20 of power management chip U3807C is connected to one end of capacitor C4086; pin 18 of power management chip U3807C is connected to one end of resistor R3888; pin 19 of power management chip U3807C is connected to one end of resistor R3890; pin 40 of power management chip U3807C is connected to one end of resistor R3891 and one end of capacitor C4095, respectively; and the other end of resistor R3890 is connected to the other end of resistor R3891.

[0012] Preferably, the real-time clock circuit includes: pin 1 of the real-time clock chip U8 is connected to pin 2 of the crystal oscillator and one end of capacitor C284, pin 2 of the real-time clock chip U8 is connected to pin 1 of the crystal oscillator and one end of capacitor C286, pin 7 of the real-time clock chip U8 is connected to one end of resistor R109, and pin 8 of the real-time clock chip U8 is connected to one end of capacitor C285 and pin 3 of diode D2.

[0013] Preferably, the DDR filter circuit includes: one end of capacitor C1200 is connected to one end of capacitor C1201, one end of capacitor C1202, one end of capacitor C1203, one end of capacitor C1204, and one end of capacitor C1205 respectively; the other ends of capacitor C1200, C1201, C1202, C1203, C1204, and C1205 are all grounded.

[0014] Preferably, the CPU operating voltage power supply circuit includes: pin D1 of the DC-DC regulator chip U3809 is connected to pin D2, pin E1, pin E2 of the DC-DC regulator chip U3809, one end of capacitor C4103, and one end of capacitor C4104, respectively; pin D3 of the DC-DC regulator chip U3809 is connected to pin D4, pin E2, and one end of capacitor C4104, respectively. Pin E3 of the U3809 chip, pin E4 of the DC-DC regulator chip U3809, and one end of the inductor L14 are connected. The other end of the inductor L14 is connected to one end of the resistor R3895, one end of the capacitor C4111, one end of the capacitor C4315, one end of the capacitor C4310, one end of the capacitor C4309, one end of the capacitor C4115, and one end of the capacitor C4116. Pin A4 of the DC-DC regulator chip U3809 is connected to the other end of the resistor R3895 and the other end of the capacitor C4111.

[0015] The RK3588-based core board implementing this utility model has the following beneficial effects: The powerful processing capabilities of the RK3588 provide the system with excellent computing performance, suitable for complex data processing and multimedia applications, meeting the demands of high-performance computing; through the Type-C interface, the core board not only achieves high-speed data transmission and video output, but also supports power transmission, enhancing the convenience and connection flexibility of the device; the inclusion of HDMI output and input interfaces allows the core board to easily connect to high-definition display devices and supports bidirectional video signal transmission, suitable for various display and monitoring scenarios; the addition of the PCIe interface makes high-speed data transmission and expansion of internal computer components possible, further improving the system's expandability and compatibility; the power management integrated circuit ensures a stable supply of voltage and current, providing reliable power for the core board and its connected devices; the integration of the real-time clock circuit enables the system to accurately record and track time, meeting the needs of time-sensitive applications; the DDR filter circuit effectively improves memory signal quality, while the carefully designed CPU operating voltage power supply circuit ensures stable CPU operation, comprehensively improving the system's reliability and stability. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort. The utility model will be further described below in conjunction with the drawings and embodiments. In the drawings:

[0017] Figure 1 This is a block diagram of the module structure of the core board based on RK3588 of this utility model;

[0018] Figure 2 This is a circuit diagram of the Type-C interface in the core board based on RK3588 of this utility model;

[0019] Figure 3 This is a circuit diagram of the HDMI output interface in the core board based on RK3588 of this utility model;

[0020] Figure 4 This is a circuit diagram of the HDMI input interface in the core board based on RK3588 of this utility model;

[0021] Figure 5 This is a circuit diagram of the PCIE interface in the core board based on RK3588 of this utility model;

[0022] Figure 6 This is a circuit diagram of the PCIE clock generation circuit in the RK3588 core board of this utility model;

[0023] Figure 7 This is a circuit diagram of the power management integrated circuit in the core board based on RK3588 of this utility model;

[0024] Figure 8 This is a circuit diagram of the real-time clock circuit in the core board based on RK3588 of this utility model;

[0025] Figure 9 This is a circuit diagram of the DDR filter circuit in the core board based on RK3588 of this utility model;

[0026] Figure 10 This is a circuit diagram of the CPU operating voltage power supply in the core board based on RK3588 of this utility model. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0029] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0030] Please see Figure 1 This is a schematic diagram of the module structure of the core board based on RK3588 of this utility model. Figure 1As shown, the RK3588-based core board provided in the first embodiment of this utility model includes at least an RK3588, a Type-C interface, an HDMI output interface, an HDMI input interface, a PCIe interface, a PCIe clock generation circuit, a power management integrated circuit, a real-time clock circuit, a DDR filter circuit, and a CPU operating voltage power supply circuit electrically connected to the RK3588. The Type-C interface is used for data transmission, video output, and power transmission between the core board and external electronic devices. The HDMI output interface is used for connecting the core board to a high-definition display device. The HDMI input interface is used for the core board to receive video input from an external HDMI signal source. The PCIe interface is used to connect to internal computer components. The PCIe clock generation circuit generates a stable clock signal to supply the PCIe interface and its connected electronic devices. The power management integrated circuit provides stable voltage and current to ensure the normal operation of the core board and its connected devices. The real-time clock circuit records and tracks time. The DDR filter circuit improves the quality of DDR memory signals. The CPU operating voltage power supply circuit provides operating voltage to the CPU.

[0031] The RK3588 is a low-power, high-performance processor integrating four Cortex-A76 cores and four Cortex-A55 cores, each with a NEON coprocessor. This processor utilizes an advanced 8nm manufacturing process and features an eight-core high-performance CPU, GPU, and NPU. The RK3588 not only provides a high-performance quad-channel external memory interface (LPDDR4 / LPDDR4X / LPDDR5) but also supports a rich set of peripheral interfaces, enabling its application in various embedded systems, edge computing devices, personal mobile internet devices, and other digital multimedia applications.

[0032] Figure 2 This is a circuit diagram of the Type-C interface in the core board of the RK3588 based on this utility model. Figure 2As shown, the Type-C interface includes: pin AH16 of the RK3588 is connected to one end of resistor R3834, the other end of resistor R3834 is grounded; pin AJ14 of the RK3588 is connected to pin AH14 of the RK3588, one end of capacitor C3973, and one end of capacitor C3974, the other ends of capacitors C3973 and C3974 are both grounded; pin AG14 of the RK3588 is connected to one end of capacitor C3975 and one end of capacitor C3976, the other end of capacitor C3975 is connected to... The other end is grounded. Pin AG16 of RK3588 is connected to one end of resistor R1410, and the other end of resistor R1410 is grounded. Pin AH13 of RK3588 is connected to pin AJ13 of RK3588, one end of capacitor C1404, and one end of capacitor C1405. The other ends of capacitor C1404 and C1405 are both grounded. Pin AG13 of RK3588 is connected to one end of capacitor C1406 and one end of capacitor C1407, and the other ends of capacitor C1406 and C1407 are both grounded.

[0033] The Type-C interface is a modern Universal Serial Bus (USB) interface standard, featuring reversible plug design, greatly simplifying user operation. On the RK3588-based core board, the Type-C interface is used for data transfer, video output, and power delivery. The RK3588 supports DisplayPort (DP) video output via the Type-C interface, supporting high-resolution displays such as 4K or 8K, which is particularly important for multimedia applications. Furthermore, the Type-C interface also supports the USB 3.0 / 3.1 standard, providing high-speed data transfer capabilities and can be used to connect external storage devices, keyboards, mice, and other peripherals.

[0034] Figure 3 This is a circuit diagram of the HDMI output interface in the core board based on the RK3588 of this utility model. Figure 3As shown, the HDMI output interface includes: pin AA9 of RK3588 is connected to one end of capacitor C1715, one end of capacitor C1751, pin AB9 of RK3588, and one end of capacitor C1714 respectively; the other ends of capacitors C1715, C1751, and C1714 are all grounded; pin AC7 of RK3588 is connected to pin AC6 of RK3588, one end of capacitor C1716, one end of capacitor C1717, and one end of capacitor C1742 respectively; the other ends of capacitors C1716, C1717, and C1742 are all grounded; RK35... Pin AD9 of RK3588 is connected to one end of capacitor C1735, one end of capacitor C1752, pin AC9 of RK3588, one end of capacitor C1729, and one end of capacitor C1730. The other ends of capacitors C1735, C1752, C1729, and C1730 are all grounded. Pin AD7 of RK3588 is connected to pin AD6 of RK3588, one end of capacitor C1731, one end of capacitor C1732, and one end of capacitor C1733. The other ends of capacitors C1731, C1732, and C1733 are all grounded.

[0035] HDMI (High-Definition Multimedia Interface) is a high-definition multimedia interface widely used to connect high-definition display devices, such as HDTVs and monitors. The HDMI output interface on the RK3588 core board supports HDMI 2.0 and HDMI 1.4 standards, and can support video output up to 2160p@60Hz. This gives the RK3588 a significant advantage in applications such as smart financial terminals, smart home control panels, and high-definition video playback devices. Through the HDMI interface, the core board can clearly display information such as introductions to various financial products and operation process videos, enhancing the user experience.

[0036] Figure 4 This is a circuit diagram of the HDMI input interface in the core board based on the RK3588 of this utility model. Figure 4 As shown, the HDMI input interface includes: pin AF3 of RK3588 is connected to one end of resistor R1730, the other end of resistor R1730 is grounded; pin AE8 of RK3588 is connected to one end of capacitor C1738, the other end of capacitor C1738 is grounded; pin AE4 of RK3588 is connected to pin AE5 of RK3588, one end of capacitor C1740, and one end of capacitor C1741, the other ends of capacitors C1740 and C1741 are both grounded.

[0037] The RK3588 is the first Rockchip processor to introduce an HDMI input interface, supporting standard HDMI 2.0 and HDMI 1.4 protocols. This interface enables the RK3588 to receive video input from external HDMI sources, supporting up to 2160p@60Hz video input. The HDMI input interface is invaluable in applications such as 8K Android TVs, video conferencing systems, and video surveillance systems. Through the HDMI input interface, users can directly input video signals from external devices (such as cameras and recorders) to the core board for real-time processing or storage.

[0038] Figure 5 This is a circuit diagram of the PCIE interface in the core board based on RK3588 of this utility model. Figure 5 As shown, the PCIe interface includes: pin B34 of the RK3588 is connected to one end of resistor R1801, the other end of resistor R1801 is grounded; pin G24 of the RK3588 is connected to one end of capacitor C1802 and one end of capacitor C1803, the other ends of capacitors C1802 and C1803 are both grounded; pin G23 of the RK3588 is connected to one end of capacitor C1800 and one end of capacitor C1801, the other end of capacitor C1800 is connected to the other end of capacitor C1801. One end of each capacitor is grounded. Pin A33 of RK3588 is connected to one end of resistor R1807, and the other end of resistor R1807 is grounded. Pin H24 of RK3588 is connected to one end of capacitor C1814 and one end of capacitor C1815, and the other ends of capacitors C1814 and C1815 are both grounded. Pin H23 of RK3588 is connected to one end of capacitor C1812 and one end of capacitor C1813, and the other ends of capacitors C1812 and C1813 are both grounded.

[0039] PCIe (Peripheral Component Interconnect Express) is a high-speed serial computer expansion bus standard used to connect high-performance components inside a computer, such as graphics cards, storage devices, and network adapters. The RK3588 core board provides multiple PCIe interfaces, including PCIe 3.0 x4 and PCIe 2.1 x1. These interfaces provide high-speed data transmission channels, support point-to-point connections, reduce latency, and improve performance. PCIe interfaces offer significant advantages in expanding system performance, connecting high-speed storage devices, and improving network communication speeds.

[0040] Figure 6 This is a circuit diagram of the PCIE clock generation circuit in the RK3588 core board of this utility model. Figure 6As shown, the PCIe clock generation circuit includes: pin 1 of the PCIe clock generator chip U8102 is connected to one end of capacitor C8118 and one end of capacitor C8119 respectively; the other ends of capacitors C8118 and C8119 are grounded; pin 2 of the PCIe clock generator chip U8102 is connected to one end of resistor R8110 and resistor R8112 respectively; pin 3 of the PCIe clock generator chip U8102 is connected to one end of resistor R8113 and resistor R8115 respectively; pin 4 of the PCIe clock generator chip U8102 is connected to one end of resistor R8118; pin 5 of the PCIe clock generator chip U8102... Pin 6 of PCIe clock generator chip U8102 is connected to one end of resistor R8121, and the other end of resistor R8121 is connected to pin 3 of crystal oscillator Y8100 and one end of capacitor C8129. Pin 7 of PCIe clock generator chip U8102 is connected to one end of resistor R8128. Pin 8 of PCIe clock generator chip U8102 is connected to one end of resistor R8131 and one end of resistor R8132. Pin 10 of PCIe clock generator chip U8102 is connected to one end of resistor R8129. Pin 11 of PCIe clock generator chip U8102 is connected to one end of resistor R8133, and the other end of resistor R8133 is connected to one end of resistor R8135. Pin 12 of PCIe clock generator chip U8102 is connected to one end of resistor R8134, and the other end of resistor R8134 is connected to one end of resistor R8136. Pin 13 of PCIe clock generator chip U8102 is connected to one end of resistor R8123, and the other end of resistor R8123 is connected to one end of resistor R8125. Pin 14 of PCIe clock generator chip U8102 is connected to one end of resistor R8122, and the other end of resistor R8122 is connected to one end of resistor R8126. Pin 17 of the PCIe clock generator chip U8102 is connected to one end of resistor R8116, and the other end of resistor R8116 is connected to one end of resistor R8117. Pin 18 of the PCIe clock generator chip U8102 is connected to one end of resistor R8111, and the other end of resistor R8111 is connected to one end of resistor R8114. Pin 19 of the PCIe clock generator chip U8102 is connected to one end of resistor R8105, and the other end of resistor R8105 is connected to one end of resistor R8107. Pin 20 of the PCIe clock generator chip U8102 is connected to one end of resistor R8104, and the other end of resistor R8104 is connected to one end of resistor R8108.

[0041] The PCIe clock generation circuit is a crucial component ensuring the proper functioning of the PCIe interface. This circuit is responsible for generating a stable clock signal to supply the PCIe interface and its connected devices. The stability and accuracy of the clock signal directly affect the data transmission speed and reliability of the PCIe interface. On the RK3588 core board, the PCIe clock generation circuit typically employs a high-performance clock chip, such as a PLL (Phase-Locked Loop) clock generator, to ensure the accuracy and stability of the clock signal.

[0042] Figure 7 This is a circuit diagram of the power management integrated circuit in the core board based on RK3588 of this utility model. Figure 7 As shown, the power management integrated circuit includes: pin 4 of power management chip U3807C is connected to one end of capacitor C4097; pin 32 of power management chip U3807C is connected to one end of capacitor C4094, the cathode of diode D1, one end of resistor R3893, and one end of resistor R3892, respectively; pin 21 of power management chip U3807C is connected to one end of capacitor C4090; pin 20 of power management chip U3807C is connected to one end of capacitor C4086; pin 18 of power management chip U3807C is connected to one end of resistor R3888; pin 19 of power management chip U3807C is connected to one end of resistor R3890; pin 40 of power management chip U3807C is connected to one end of resistor R3891 and one end of capacitor C4095, respectively; and the other end of resistor R3890 is connected to the other end of resistor R3891.

[0043] The power management integrated circuit (PMIC) is a critical component responsible for system power management. On the RK3588 core board, the PMIC is responsible for providing stable voltage and current to ensure the normal operation of the core board and its connected devices. The RK3588 core board is typically paired with high-performance power management chips such as the RK806, providing multiple voltage outputs, including power for critical components such as the CPU, GPU, NPU, and memory. The PMIC also features overcurrent protection, overvoltage protection, and undervoltage protection to ensure the system can safely shut down or restart under abnormal conditions.

[0044] Figure 8 This is a circuit diagram of the real-time clock circuit in the core board based on RK3588 of this utility model. Figure 8 As shown, the real-time clock circuit includes: pin 1 of the real-time clock chip U8 is connected to pin 2 of the crystal oscillator and one end of capacitor C284, pin 2 of the real-time clock chip U8 is connected to pin 1 of the crystal oscillator and one end of capacitor C286, pin 7 of the real-time clock chip U8 is connected to one end of resistor R109, and pin 8 of the real-time clock chip U8 is connected to one end of capacitor C285 and pin 3 of diode D2.

[0045] A real-time clock (RTC) circuit persistently maintains time information, ensuring accurate timekeeping even during power outages. On the RK3588 core board, the RTC circuit plays a crucial role in recording and tracking time. The RTC circuit typically uses a low-power real-time clock chip, such as the PCF8563 or HYM8563TS (used in this embodiment), and communicates with the core board via the I2C bus. RTC circuits have wide applications in embedded systems, including event timestamp recording, device timing, alarm clock functions, and system energy management.

[0046] The HYM8563TS TSSOP8_3R10X3R10X1R10 is a low-power CMOS real-time clock / calendar chip from Haoyu Semiconductor. This chip is widely used in various electronic devices due to its high precision, low power consumption, and versatility.

[0047] The primary function of the HYM8563TS chip is to provide accurate real-time clock and calendar functions. It integrates a 32.768kHz oscillator to generate a stable clock signal, ensuring the accuracy of time and date. Furthermore, the chip features a programmable clock output function, allowing users to adjust the output frequency and format of the clock signal according to their needs.

[0048] Figure 9 This is a circuit diagram of the DDR filter circuit in the core board based on RK3588 of this utility model. Figure 9 As shown, the DDR filter circuit includes: one end of capacitor C1200 is connected to one end of capacitor C1201, one end of capacitor C1202, one end of capacitor C1203, one end of capacitor C1204, and one end of capacitor C1205 respectively; the other ends of capacitors C1200, C1201, C1202, C1203, C1204, and C1205 are all grounded.

[0049] The DDR filter circuit is a key component for improving the signal quality of DDR memory. On the RK3588 core board, the DDR filter circuit ensures stable and reliable data transmission between the DDR memory and the core board by reducing signal noise and interference. DDR filter circuits typically employ differential signal lines and common-mode inductors to eliminate common-mode interference and improve signal integrity. Furthermore, the DDR filter circuit also features impedance matching and level shifting functions, ensuring efficient and stable signal transmission between the DDR memory and the core board.

[0050] Figure 10This is a circuit diagram of the CPU operating voltage power supply in the RK3588 core board of this utility model. Figure 10 As shown, the CPU operating voltage power supply circuit includes: pin D1 of DC-DC regulator chip U3809 is connected to pins D2, E1, and E2 of DC-DC regulator chip U3809, one end of capacitor C4103, and one end of capacitor C4104, respectively; pin D3 of DC-DC regulator chip U3809 is connected to pins D4 and E2 of DC-DC regulator chip U3809, one end of capacitor C4103, and one end of capacitor C4104, respectively. Pin E3 of the 3809, pin E4 of the DC-DC regulator chip U3809, and one end of inductor L14 are connected. The other end of inductor L14 is connected to one end of resistor R3895, one end of capacitor C4111, one end of capacitor C4315, one end of capacitor C4310, one end of capacitor C4309, one end of capacitor C4115, and one end of capacitor C4116. Pin A4 of the DC-DC regulator chip U3809 is connected to the other end of resistor R3895 and the other end of capacitor C4111.

[0051] The U3809 DC-DC regulator chip can be, but is not limited to, the RK860-3. The RK860-3WLCSP20_1R65X2R05X0R63 is a high-efficiency DC-DC regulator IC from Rockchip. This chip uses a WLCSP-20 package, featuring a compact size and excellent performance, making it widely applicable in various electronic devices.

[0052] The primary function of the RK860-3 is to provide stable and efficient DC-DC voltage conversion. It can operate over a wide input voltage range of 2.7V to 5.5V and output up to 7A of continuous current. This characteristic makes it excellent for devices requiring high current supply, such as smartphones, tablets, and power banks.

[0053] In terms of functionality, the RK860-3 integrates a main switch and a synchronous switch, both with low on-resistance (RDSon), thus minimizing conduction losses. Furthermore, the chip supports programmable output voltage, which users can precisely adjust via the I2C interface in steps of 12.5mV / step from 0.7125V to 1.5V or in steps of 6.25mV / step from 0.5V to 1.5V. This feature allows the RK860-3 to meet the voltage requirements of different devices, improving system flexibility and stability.

[0054] In addition, the RK860-3 features Hic-cup mode protection for hard short-circuit conditions, which further enhances its reliability and safety in practical applications.

[0055] The CPU power supply circuit is a crucial component ensuring the normal operation of the CPU. On the RK3588 core board, the CPU power supply circuit typically employs multiple voltage outputs, including core voltage (VDD_CPU) and I / O voltage (VDD_IO). These voltages are precisely regulated and monitored by a high-performance power management chip (such as the RK806) to ensure that the CPU receives stable voltage and current under different workloads. The CPU power supply circuit also features Dynamic Voltage Scaling (DVS) functionality, adjusting the voltage in real time according to the CPU's workload to improve the system's energy efficiency.

[0056] The beneficial effects of this invention, through the design of the above embodiments, are as follows: The powerful processing capability of the RK3588 provides the system with excellent computing performance, suitable for complex data processing and multimedia applications, meeting the needs of high-performance computing; through the Type-C interface, the core board not only realizes high-speed data transmission and video output, but also supports power transmission, enhancing the convenience and connection flexibility of the device; the inclusion of HDMI output and input interfaces allows the core board to easily connect to high-definition display devices and supports bidirectional transmission of video signals, suitable for various display and monitoring scenarios; the addition of the PCIe interface makes high-speed data transmission and expansion of internal computer components possible, further improving the system's expandability and compatibility; the power management integrated circuit ensures a stable supply of voltage and current, providing reliable power protection for the core board and its connected devices; the integration of the real-time clock circuit enables the system to accurately record and track time, meeting the needs of time-sensitive applications; the DDR filter circuit effectively improves the memory signal quality, while the carefully designed CPU operating voltage power supply circuit ensures the stable operation of the CPU, thus improving the overall reliability and stability of the system.

[0057] This utility model has been described based on specific embodiments, but those skilled in the art will understand that various changes and equivalent substitutions can be made without departing from the scope of this utility model. Furthermore, to adapt to specific applications of this utility model, numerous modifications can be made without departing from its protection scope. Therefore, this utility model is not limited to the specific embodiments disclosed herein, but includes all embodiments falling within the protection scope of the claims.

Claims

1. An RK3588-based core board, characterized in that, Comprise: RK3588, Type-C interface, HDMI output interface, HDMI input interface, PCIE interface, PCIE clock generation circuit, power management integrated circuit, real-time clock circuit, DDR filter circuit and CPU working voltage power supply circuit connected to the RK3588 by an electrical connection, the Type-C interface is used for data transmission, video output and power transmission between the core board and external electronic equipment, the HDMI output interface is used for the core board to connect the high-definition display device, the HDMI input interface is used for the core board to receive the video input of the external HDMI signal source, the PCIE interface is used to connect the internal components of the computer, the PCIE clock generation circuit is used to generate a stable clock signal for the PCIE interface and the electronic equipment connected thereto, the power management integrated circuit is used to provide stable voltage and current to ensure the normal operation of the core board and the connected equipment, the real-time clock circuit is used to record and track time, the DDR filter circuit is used to improve the signal quality of the DDR memory, and the CPU working voltage power supply circuit is used to provide working voltage for the CPU.

2. The RK3588-based core board according to claim 1, wherein, The Type-C interface comprises: one end of the resistor R3834 is connected to the pin AH16 of the RK3588, the other end of the resistor R3834 is grounded, the pins AJ14 of the RK3588 are respectively connected to the pins AH14 of the RK3588, one end of the capacitor C3973 and one end of the capacitor C3974, the other end of the capacitor C3973 and the other end of the capacitor C3974 are both grounded, the pins AG14 of the RK3588 are respectively connected to one end of the capacitor C3975 and one end of the capacitor C3976, the other end of the capacitor C3975 and the other end of the capacitor C3976 are both grounded, the pin AG16 of the RK3588 is connected to one end of the resistor R1410, the other end of the resistor R1410 is grounded, the pins AH13 of the RK3588 are respectively connected to the pins AJ13 of the RK3588, one end of the capacitor C1404 and one end of the capacitor C1405, the other end of the capacitor C1404 and the other end of the capacitor C1405 are both grounded, the pins AG13 of the RK3588 are respectively connected to one end of the capacitor C1406 and one end of the capacitor C1407, the other end of the capacitor C1406 and the other end of the capacitor C1407 are both grounded.

3. The RK3588-based core board according to claim 1, wherein, The HDMI output interface comprises: one end of a capacitor C1715, one end of a capacitor C1751, a pin AA9 of the RK3588, one end of a capacitor C1714, the other end of the capacitor C1715, the other end of the capacitor C1751 and the other end of the capacitor C1714 are all connected to ground; one end of a capacitor C1716, one end of a capacitor C1717, one end of a capacitor C1742, a pin AC6 of the RK3588, the other end of the capacitor C1716, the other end of the capacitor C1717 and the other end of the capacitor C1742 are all connected to ground; one end of a capacitor C1735, one end of a capacitor C1752, a pin AC9 of the RK3588, one end of a capacitor C1729, one end of a capacitor C1730, the other end of the capacitor C1735, the other end of the capacitor C1752, the other end of the capacitor C1729 and the other end of the capacitor C1730 are all connected to ground; one end of a capacitor C1731, one end of a capacitor C1732, one end of a capacitor C1733, a pin AD6 of the RK3588, the other end of the capacitor C1731, the other end of the capacitor C1732 and the other end of the capacitor C1733 are all connected to ground.

4. The RK3588-based core board according to claim 1, wherein, The HDMI input interface comprises: a pin AF3 of the RK3588 connected to one end of a resistor R1730, the other end of the resistor R1730 connected to ground; a pin AE8 of the RK3588 connected to one end of a capacitor C1738, the other end of the capacitor C1738 connected to ground; a pin AE4 of the RK3588 connected to a pin AE5 of the RK3588, one end of a capacitor C1740, one end of a capacitor C1741, the other end of the capacitor C1740 and the other end of the capacitor C1741 are all connected to ground.

5. The RK3588-based core board according to claim 1, wherein, The PCIE interface comprises: one end of a resistor R1801 is connected with a pin B34 of the RK3588, the other end of the resistor R1801 is grounded, one end of a capacitor C1802 and one end of a capacitor C1803 are connected with a pin G24 of the RK3588 respectively, the other end of the capacitor C1802 and the other end of the capacitor C1803 are grounded, one end of a capacitor C1800 and one end of a capacitor C1801 are connected with a pin G23 of the RK3588 respectively, the other end of the capacitor C1800 and the other end of the capacitor C1801 are grounded, a pin A33 of the RK3588 is connected with one end of a resistor R1807, the other end of the resistor R1807 is grounded, one end of a capacitor C1814 and one end of a capacitor C1815 are connected with a pin H24 of the RK3588 respectively, the other end of the capacitor C1814 and the other end of the capacitor C1815 are grounded, one end of a capacitor C1812 and one end of a capacitor C1813 are connected with a pin H23 of the RK3588 respectively, the other end of the capacitor C1812 and the other end of the capacitor C1813 are grounded.

6. The RK3588-based core board according to claim 1, wherein, The PCIE clock generation circuit comprises: the pin 1 of the PCIE clock generator chip U8102 is connected with one end of the capacitor C8118 and one end of the capacitor C8119 respectively, the other end of the capacitor C8118 and the other end of the capacitor C8119 are grounded, the pin 2 of the PCIE clock generator chip U8102 is connected with one end of the resistor R8110 and one end of the resistor R8112 respectively, the pin 3 of the PCIE clock generator chip U8102 is connected with one end of the resistor R8113 and one end of the resistor R8115 respectively, the pin 4 of the PCIE clock generator chip U8102 is connected with one end of the resistor R8118, the pin 5 of the PCIE clock generator chip U8102 is connected with one end of the capacitor C8128 and the pin 1 of the crystal Y8100 respectively, the pin 6 of the PCIE clock generator chip U8102 is connected with one end of the resistor R8121, the other end of the resistor R8121 is connected with the pin 3 of the crystal Y8100 and one end of the capacitor C8129 respectively, the pin 7 of the PCIE clock generator chip U8102 is connected with one end of the resistor R8128, the pin 8 of the PCIE clock generator chip U8102 is connected with one end of the resistor R8131 and one end of the resistor R8132 respectively, the pin 10 of the PCIE clock generator chip U8102 is connected with one end of the resistor R8129, the pin 11 of the PCIE clock generator chip U8102 is connected with one end of the resistor R8133, the other end of the resistor R8133 is connected with one end of the resistor R8135, the pin 12 of the PCIE clock generator chip U8102 is connected with one end of the resistor R8134, the other end of the resistor R8134 is connected with one end of the resistor R8136, the pin 13 of the PCIE clock generator chip U8102 is connected with one end of the resistor R8123, the other end of the resistor R8123 is connected with one end of the resistor R8125, the pin 14 of the PCIE clock generator chip U8102 is connected with one end of the resistor R8122, the other end of the resistor R8122 is connected with one end of the resistor R8126, the pin 17 of the PCIE clock generator chip U8102 is connected with one end of the resistor R8116, the other end of the resistor R8116 is connected with one end of the resistor R8117, the pin 18 of the PCIE clock generator chip U8102 is connected with one end of the resistor R8111, the other end of the resistor R8111 is connected with one end of the resistor R8114, the pin 19 of the PCIE clock generator chip U8102 is connected with one end of the resistor R8105, the other end of the resistor R8105 is connected with one end of the resistor R8107, the pin 20 of the PCIE clock generator chip U8102 is connected with one end of the resistor R8104, the other end of the resistor R8104 is connected with one end of the resistor R8108.

7. The RK3588-based core board according to claim 1, wherein, The power management integrated circuit includes: the pin 4 of the power management chip U3807C is connected with one end of the capacitor C4097, the pin 32 of the power management chip U3807C is connected with one end of the capacitor C4094, the negative electrode of the diode D1, one end of the resistor R3893 and one end of the resistor R3892 respectively, the pin 21 of the power management chip U3807C is connected with one end of the capacitor C4090, the pin 20 of the power management chip U3807C is connected with one end of the capacitor C4086, the pin 18 of the power management chip U3807C is connected with one end of the resistor R3888, the pin 19 of the power management chip U3807C is connected with one end of the resistor R3890, the pin 40 of the power management chip U3807C is connected with one end of the resistor R3891 and one end of the capacitor C4095 respectively, the other end of the resistor R3890 is connected with the other end of the resistor R3891.

8. The RK3588-based core board according to claim 1, wherein, The real-time clock circuit includes: the pin 1 of the real-time clock chip U8 is connected with the pin 2 of the crystal oscillator and one end of the capacitor C284 respectively, the pin 2 of the real-time clock chip U8 is connected with the pin 1 of the crystal oscillator and one end of the capacitor C286 respectively, the pin 7 of the real-time clock chip U8 is connected with one end of the resistor R109, the pin 8 of the real-time clock chip U8 is connected with one end of the capacitor C285 and the pin 3 of the diode D2 respectively.

9. The RK3588-based core board according to claim 1, wherein, The DDR filter circuit includes: one end of the capacitor C1200 is connected with one end of the capacitor C1201, one end of the capacitor C1202, one end of the capacitor C1203, one end of the capacitor C1204 and one end of the capacitor C1205 respectively, the other end of the capacitor C1200, the other end of C1201, the other end of the capacitor C1202, the other end of the capacitor C1203, the other end of the capacitor C1204 and the other end of the capacitor C1205 are grounded.

10. The RK3588-based core board according to any one of claims 1-9, wherein, The CPU working voltage power supply circuit includes: the pin D1 of the DC-DC regulator chip U3809 is connected with the pin D2 of the DC-DC regulator chip U3809, the pin E1 of the DC-DC regulator chip U3809, the pin E2 of the DC-DC regulator chip U3809, one end of the capacitor C4103 and one end of the capacitor C4104 respectively, the pin D3 of the DC-DC regulator chip U3809 is connected with the pin D4 of the DC-DC regulator chip U3809, the pin E3 of the DC-DC regulator chip U3809, the pin E4 of the DC-DC regulator chip U3809 and one end of the inductor L14 respectively, the other end of the inductor L14 is connected with one end of the resistor R3895, one end of the capacitor C4111, one end of the capacitor C4315, one end of the capacitor C4310, one end of the capacitor C4309, one end of the capacitor C4115, one end of the capacitor C4116 respectively, the pin A4 of the DC-DC regulator chip U3809 is connected with the other end of the resistor R3895 and the other end of the capacitor C4111 respectively.

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