Tandem extensible vehicle-mounted audio processing device based on A2B technology
Through a series-connected scalable vehicle audio processing device based on A2B technology, the DSP processing host and the A2B interface connection between the amplifier slave is connected to the digital conversion and power output of the audio signal, solving the problem that the existing vehicle audio processor cannot be expanded, simplifying the equipment structure and reducing operational complexity.
Patent Information
- Application Number
- CN202422260430.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-13
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-09-13
AI Technical Summary
Existing automotive DSP audio processors cannot achieve channel and application expansion without changing the autogeneous structure, resulting in complex product structure and difficult operation on the market.
The series-connected expandable vehicle audio processing device based on A2B technology is adopted. The DSP processing host is connected to the A2B interface of the amplifier slave to realize digital conversion and power output of the audio signal, and supports the expansion of multiple amplifier slaves.
The number of channels of the audio processing device is expanded, the equipment structure is simplified, and the operation complexity and debugging difficulty are reduced.
Smart Images
Figure CN223092322U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of audio processors, in particular to a serial expandable vehicle-mounted audio processing device based on A2B technology. Background Art
[0002] Existing vehicle-mounted DSP audio processors or DSP audio processors with power amplifiers are all independent individuals, and it is impossible to expand channels and applications without changing their own structures; for different application scenarios, products with different numbers of channels need to be prepared to deal with them. These products only differ in the number of channels, and other characteristics are similar; existing products have products with different numbers of channels such as four, six, eight, ten, twelve, fourteen, sixteen, and eighteen channels, and the products cannot replace each other; this causes the problem of complex product structures in the market, and it is difficult and error-prone to debug and operate multiple devices separately. Content of the Utility Model
[0003] The utility model provides a serial expandable vehicle-mounted audio processing device based on A2B technology, which solves the above technical problems.
[0004] To solve the above technical problems, a serial expandable vehicle-mounted audio processing device based on A2B technology provided by the utility model includes a DSP processing host. The A2B output interface of the DSP processing host is connected to the A2B input interface of a power amplifier slave through a line. The power output interfaces of the DSP processing host and the power amplifier slave are both connected to speakers, and the surface of the power amplifier slave is provided with an A2B output interface.
[0005] Preferably, the circuit of the A2B interface on the surface of the DSP processing host is an AD2428 circuit, including one or more of an AD2428 core chip, an AD2428 peripheral circuit, and a DSP processing circuit. Each interface circuit integrates a corresponding configuration program.
[0006] Preferably, the power amplifier slave is specifically an A2B power amplifier all-in-one machine, and the chip on the surface of the power amplifier slave is any one of the AD2428 series, AD2426 series, AD2427 series, AD2431 series, AD2432 series, AD2433 series, and AD2435 series.
[0007] Compared with the related technology, a serial expandable vehicle-mounted audio processing device based on A2B technology provided by the utility model has the following beneficial effects:
[0008] In this utility model, the audio input of the DEMO host is input through optical fiber signals, and the conversion from digital audio to analog audio is achieved through self-generated optical fiber decoding. The audio signal is output in digital form to the input end of the slave machine through the A2B interface. The host is equipped with a power output interface for convenient connection to speakers. Brief Description of the Drawings
[0009] Figure 1 It is the connection structure diagram of this utility model. Detailed Implementation Manner
[0010] The embodiment is given by Figure 1 This utility model includes a cascaded expandable vehicle audio processing device based on A2B technology, which includes a DSP processing host. The A2B output interface of the DSP processing host is connected to the A2B input interface of the power amplifier slave machine through a circuit. The power output interfaces of the DSP processing host and the power amplifier slave machine are both connected to speakers, and the A2B output interface is arranged on the surface of the power amplifier slave machine.
[0011] The circuit of the A2B interface on the surface of the DSP processing host is an AD2428 circuit, which includes one or more of an AD2428 core chip, an AD2428 peripheral circuit, and a DSP processing circuit. Each interface circuit integrates a corresponding configuration program.
[0012] The power amplifier slave machine is specifically an A2B power amplifier all-in-one machine, and the chip on the surface of the power amplifier slave machine is any one of the AD2428 series, AD2426 series, AD2427 series, AD2431 series, AD2432 series, AD2433 series, and AD2435 series.
[0013] The audio input of the DSP host is input through optical fiber signals, and the conversion from digital audio to analog audio is achieved through self-generated optical fiber decoding. The audio signal is output in digital form to the A2B input interface of the power amplifier slave machine through the A2B output interface. The DSP host and the power amplifier slave machine are equipped with power output interfaces, which are connected to external speakers to play sound. The A2B output interface of the power amplifier slave machine is directly connected to the A2B input interface of an additional power amplifier slave machine through a circuit, thereby increasing the number of channels.
Claims
1. A tandem expandable vehicle audio processing device based on A2B technology, including a DSP processing host, characterized in that, The A2B output interface of the DSP processing host is connected to the A2B input interface of the slave power amplifier through a line. The power output interfaces of the DSP processing host and the slave power amplifier are both connected to speakers. An A2B output interface is provided on the surface of the slave power amplifier; the A2B output interface of the slave power amplifier is directly connected to the A2B input interface of an additional slave power amplifier through a line; The circuit of the A2B interface on the surface of the DSP processing host is an AD2428 circuit, including one or more of an AD2428 core chip, an AD2428 peripheral circuit, and a DSP processing circuit. Each interface circuit integrates a corresponding configuration program.
2. The tandem expandable in-vehicle audio processing device based on A2B technology according to claim 1, characterized in that, The slave power amplifier is specifically an A2B power amplifier integrated machine, and the chip on the surface of the slave power amplifier is any one of the AD2428 series, AD2426 series, AD2427 series, AD2431 series, AD2432 series, AD2433 series, and AD2435 series.