A full parameter test system for 1553 bus transceiver chip
The 1553 bus transceiver chip full parameter testing system, which combines an oscilloscope and a mixed-signal tester, solves the problem that existing ATE equipment cannot measure the parameters of the 1553 bus transceiver chip, realizes automated measurement and data recording, and improves production efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAN XICE ELECTRONICS TECH SERVICE
- Filing Date
- 2025-06-24
- Publication Date
- 2026-06-05
AI Technical Summary
Existing ATE equipment cannot effectively measure the key parameters of the 1553 bus transceiver chip, resulting in low production efficiency, poor traceability of manual measurement, and high costs.
Design a full-parameter testing system for a 1553 bus transceiver chip. Combine an oscilloscope and a mixed-signal tester, and connect the 1553 bus transceiver chip to the bus isolation transformer via a parameter interface board to achieve automatic measurement and data recording.
The system enables automated measurement of key parameters of the 1553 bus transceiver chip, reducing manual labor intensity, improving production efficiency and measurement accuracy, and lowering costs.
Smart Images
Figure CN224328206U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of chip testing, specifically relating to a full parameter testing system for a 1553 bus transceiver chip. Background Technology
[0002] 1. ATE is an abbreviation for Automatic Test Equipment. In the semiconductor industry, it refers to an automatic test machine for integrated circuits (ICs). It is used to test the integrity of the functions of integrated circuits and is the final process in the production and manufacturing of integrated circuits to ensure the quality of integrated circuit production.
[0003] 2. Existing mid-range and low-end ATEs are mainly divided into digital and analog types. Digital ATEs are characterized by high signal rates but have a limited voltage range for application and measurement, typically -1.5 to 6.5V. Analog ATEs, on the other hand, have a voltage range of ±100V but a signal rate of only around 20MHz. For the differential signal output voltage after transformer coupling of the transceiver and transmitter in the 1553 bus standard, the peak-to-peak value is around 20V, and the rise time, fall time, kill delay, and transmitter delay are all below 200ns. Therefore, neither the aforementioned mid-range nor low-end ATEs can measure these parameters, requiring manual measurement and data recording using an external oscilloscope; this leads to low production efficiency and poor traceability of manually recorded data.
[0004] The cost of a single internationally renowned high-end ATE unit is between 4 million and 5 million yuan, which is too high for the needs of small-batch verification or secondary screening in the design stage, making it unusable.
[0005] Therefore, most measurements and records are currently done manually. However, the low production efficiency, poor traceability of manually recorded data, and inaccurate measurements caused by using an external oscilloscope for manual measurement and recording increase production costs. Utility Model Content
[0006] To address the aforementioned problems in existing technologies, this utility model combines the technical solutions of ATE testing equipment and oscilloscopes, resulting in a simple structure, high safety and reliability, reduced labor intensity for workers, and improved work efficiency. The technical solution adopted by this utility model is as follows:
[0007] A full-parameter testing system for a 1553 bus transceiver chip includes an oscilloscope, a mixed-signal tester, a DC parameter interface board, and an AC parameter interface board.
[0008] The oscilloscope is communicatively connected to the mixed-signal tester.
[0009] The mixed-signal tester is connected to both the DC parameter interface board and the AC parameter interface board.
[0010] The DC parameter interface board and AC parameter interface board are used to connect to the 1553 bus transceiver chip.
[0011] It also includes a bus isolation transformer, which is connected to the 1553 bus transceiver chip. The bus isolation transformer is a T31S0422 type bus isolation transformer from Shaanxi Changling Maiteng Electronics Co., Ltd.
[0012] Furthermore, on the parameter interface board, PVIX (PVI1, PVI0) is the power source of the mixed signal tester, and IOXX (IO1, IO2, etc.) are the digital signal channels of the mixed system.
[0013] Furthermore, the PIN2 pin of the 1553 bus transceiver chip is connected to the PIN1 pin of the T31S0422 bus isolation transformer, the PIN3 pin of the 1553 bus transceiver chip is connected to the PIN3 pin of the T31S0422 bus isolation transformer, and a 69.8Ω resistor is connected between the PIN6 and PIN8 pins of the T31S0422 bus isolation transformer as a bus load, with reserved measurement points A+ and A-.
[0014] Furthermore, the PIN7 pin of the 1553 bus transceiver chip is connected to the PIN1 pin of the T31S0422 bus isolation transformer, the PIN8 pin of the 1553 bus transceiver chip is connected to the PIN3 pin of the T31S0422 bus isolation transformer, and a 69.8Ω resistor is connected between the PIN6 and PIN8 pins of the T31S0422 bus isolation transformer as a bus load, with reserved measurement points B+ and B-.
[0015] Furthermore, the oscilloscope establishes a TCP / IP communication link through the Ethernet physical layer, with the CH1 channel connected to measurement points A+ and A-, and the CH2 channel connected to measurement points B+ and B-.
[0016] The beneficial effects of this utility model are as follows: the 1553 bus transceiver chip is connected to the mixed signal tester using a parameter interface board, the 1553 bus transceiver chip is excited by the signal sent by the mixed signal tester, and then the 1553 bus transceiver chip is tested according to the feedback. For some parameters, they are detected by an oscilloscope, and the detected data is transmitted to the mixed signal tester, which reduces labor intensity and improves work efficiency. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this application;
[0018] Figure 2 This is a schematic diagram of the DC parameter interface board module;
[0019] Figure 3This is a schematic diagram of the communication parameter interface board. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings and reference numerals.
[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0022] The terms “first,” “second,” “third,” etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.
[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0024] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.
[0025] Example 1:
[0026] like Figure 1-3 As shown, a full parameter testing system for a 1553 bus transceiver chip includes an oscilloscope, a mixed-signal tester, a DC parameter interface board, and an AC parameter interface board.
[0027] The oscilloscope is communicatively connected to the mixed-signal tester.
[0028] The mixed-signal tester is connected to both the DC parameter interface board and the AC parameter interface board.
[0029] The DC parameter interface board and AC parameter interface board are used to connect to the 1553 bus transceiver chip.
[0030] Figure 2This is a DC parameter interface board. J1A and J1B are 3x32 pin European sockets, connecting to a mixed-signal tester. PVIX is the power source for the mixed-signal tester, and IOXX are the digital signal channels for the mixed-signal system. The code is written to rationally control the resources of the mixed-signal tester to provide appropriate excitation to the 1553 bus transceiver chip, and automatically measures the output high-level voltage, output low-level voltage, input high-level current, and input low-level current parameters of the receiver pins PIN16, 17 and PIN11, 12, as well as the operating current and power consumption of pins PIN1 and 6.
[0031] Figure 3 The interface board is for exchanging parameters. J1A and J1B are 3x32-pin European sockets. They are connected to the mixed-signal tester through J1A and J1B. PVIX is the power source of the mixed-signal tester, and IOXX is the digital signal channel of the mixed system. U4 and U5 are T31S0422 type bus isolation transformers. The PIN2 pin of the 1553 bus transceiver chip is connected to the PIN1 pin of the T31S0422 type bus isolation transformer, and the PIN3 pin of the 1553 bus transceiver chip is connected to the PIN3 pin of the T31S0422 type bus isolation transformer. A 69.8Ω resistor is connected between the PIN6 and PIN8 pins of the T31S0422 type bus isolation transformer as a bus load, with reserved measurement points A+ and A-. The PIN7 pin of the 1553 bus transceiver chip is connected to the PIN1 pin of the T31S0422 type bus isolation transformer, and the PIN8 pin of the 1553 bus transceiver chip is connected to the PIN3 pin of the T31S0422 type bus isolation transformer. A 69.8Ω resistor is connected between the PIN6 and PIN8 pins of the T31S0422 type bus isolation transformer as a bus load, with reserved measurement points B+ and B-. By writing code to rationally control the resources of the mixed-signal test machine, appropriate excitation is provided to the 1553 bus transceiver chip. The oscilloscope is responsible for measurement and calculation. The oscilloscope establishes a TCP / IP communication link through the Ethernet physical layer. Channel CH1 is connected to measurement points A+ and A-, and channel CH2 is connected to measurement points B+ and B- to measure the peak-to-peak value, amplitude, rise time, fall time, and forbid delay time of the coupled waveform. The final results are transmitted to the test system through the TCP / IP communication link and stored as .txt or .xls files on its host computer.
[0032] Specific working principle:
[0033] Connect the 1553 bus transceiver chip to the DC parameter interface board and the AC parameter interface board. Then, plug the DC parameter interface board and the AC parameter interface board into the mixed signal tester. The mixed signal tester sends signals to the 1553 bus transceiver chip and receives feedback through the DC parameter interface board and the AC parameter interface board to test the 1553 bus transceiver chip. For some parameters, such as rise time, fall time, disable delay, transmitter delay, etc., it is necessary to test them with an oscilloscope and send the tested data to the mixed signal tester.
[0034] Transmitter from TXA / B and The end receives complementary Manchester encoding and converts it to BUSA / B and The differential voltage signal on the transceiver is transmitted to the 1553 data bus after passing through the isolation transformer.
[0035] When TXA / B and When the data at the terminal is simultaneously at logic level "1" or logic level "0", the transmitter is disabled and set to a high-impedance state; when the transmitter outputs the disable control signal TXINHA / B at logic level "1", the transmitter is disabled and set to a high-impedance state.
[0036] Receiver via BUSA / B and Receives biphase differential signal data from the MIL-STD-1553 data bus, which is filtered and thresholded by a comparator, and then processed at RXA / B and... Generates CMOS level output. When the receiver enable pin RXENA / B is set low, RXA / B and... All terminals are set to logic level "0".
[0037] This utility model is not limited to the above-mentioned optional embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in its shape or structure, any technical solution that falls within the scope of the claims of this utility model shall be protected by this utility model.
Claims
1. A full-parameter testing system for a 1553 bus transceiver chip, characterized in that: This includes oscilloscopes, mixed-signal testers, DC parameter interface boards, and AC parameter interface boards; The oscilloscope is communicatively connected to the mixed-signal tester. The mixed-signal tester is connected to both the DC parameter interface board and the AC parameter interface board. The DC parameter interface board and AC parameter interface board are used to connect to the 1553 bus transceiver chip.
2. The 1553 bus transceiver chip full parameter testing system according to claim 1, characterized in that: It also includes a bus isolation transformer, which is connected to the 1553 bus transceiver chip.
3. The 1553 bus transceiver chip full parameter testing system according to claim 1, characterized in that: The PIN2 pin of the 1553 bus transceiver chip is connected to the PIN1 pin of the bus isolation transformer, the PIN3 pin of the 1553 bus transceiver chip is connected to the PIN3 pin of the bus isolation transformer, and a 69.8Ω resistor is connected between the PIN6 and PIN8 pins of the bus isolation transformer as the bus load and reserved measurement points A+ and A-.
4. The 1553 bus transceiver chip full parameter testing system according to claim 3, characterized in that: The PIN7 pin of the 1553 bus transceiver chip is connected to the PIN1 pin of the bus isolation transformer, and the PIN8 pin of the 1553 bus transceiver chip is connected to the PIN3 pin of the bus isolation transformer. A 69.8Ω resistor is connected between the PIN6 and PIN8 pins of the bus isolation transformer as a bus load and reserved measurement points B+ and B-.
5. The 1553 bus transceiver chip full parameter testing system according to claim 4, characterized in that: The oscilloscope establishes a TCP / IP communication link through the Ethernet physical layer, with the CH1 channel connected to measurement points A+ and A-, and the CH2 channel connected to measurement points B+ and B-.