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Shenzhen Mingjiada Electronics Co., Ltd.——Supply ADI Audio Devices: Automotive Audio Bus (A2B®), Audio Codecs, Audio Amplifiers, Audio Signal Processors

ADI Automotive Audio Product Matrix

ADI's audio devices are known for their high-fidelity sound quality, low power consumption and strong interference immunity, and are widely used in in-vehicle entertainment systems, smart cockpits, voice interaction and advanced driver assistance systems (ADAS). Mingjiada Electronics has been providing customers with a full range of audio ICs from ADI for a long time, helping customers to quickly develop highly reliable in-vehicle audio systems.

I. Automotive Audio Bus (A2B®)

Product Positioning: A2B® (Automotive Audio Bus) is a digital audio bus technology designed by ADI for automotive environments, supporting multi-node, low-latency audio transmission, significantly simplifying the wiring harness layout and reducing system costs.

Core Models and Features

AD2428W

Function: master node controller supporting up to 10 slave nodes in cascade.

Key Parameters:

Transmission bandwidth: 50Mbps, supports I²S/TDM/PDM audio formats.

Latency: <1µs, ensures multi-channel synchronisation.

Power supply: 3.3V single power supply, compatible with 12V/24V car power supply.

Application scenarios: in-vehicle microphone arrays, multi-speaker systems, active noise cancellation (ANC).

AD2410T

Function: Slave node transceiver, supports daisy chain topology.

Key parameters:

Integrated DC/DC converter to reduce external components.

Supports AEC-Q100 certification over the -40°C to +105°C temperature range.

Advantages: Simplifies wiring harness, reduces electromagnetic interference (EMI), and improves system reliability.

Second, the audio codec

Product positioning: high-resolution audio capture and playback, support for multi-channel input/output and digital signal processing.

Representative models and features

ADAU1452

Function: SigmaDSP® digital audio processor + codec.

Key parameters:

Audio resolution: 24-bit/192kHz.

Processing power: 1.5 GFLOPS, support FIR/IIR filter, dynamic equalisation.

Interface: I²C, SPI, I²S, S/PDIF.

Application Scenario: In-vehicle Surround Sound System, Voice Enhancement, Smart Speaker.

ADAU1761

Function: Low-power stereo codec.

Key parameters:

SNR: 105dB (DAC), 94dB (ADC).

Power consumption: <15mW (playback mode).

Advantage: Suitable for battery-powered portable in-vehicle equipment, such as wireless microphones.

Third, audio amplifier

Product Positioning: High performance Class D/Class AB amplifiers, providing clear sound quality and high output power.

Popular Models and Features

SSM2518

Type: Class D digital input amplifier.

Key parameters:

Output Power: 20W/4Ω (THD+N <1%).

Efficiency: >90% to reduce heat dissipation design pressure.

Protection function: over-current, overheat, short circuit protection.

Application Scenario: Car centre console speaker, subwoofer driver.

SSM3302

Type: Class AB stereo amplifier.

Key parameters:

Output power: 2×25W/8Ω.

Signal-to-noise ratio: >110dB.

Advantage: no filter design, suitable for Hi-Fi audio system.

Fourth, the audio signal processor

Product Positioning: High-performance DSP chip to achieve complex audio algorithms and real-time processing.

Flagship models and features

ADSP-21489 (SHARC series)

Core performance:

Floating-point capacity: 1.5 GFLOPS.

Memory: 5MB SRAM, supports multi-task parallel processing.

Application Scenarios: 3D surround sound, in-car active noise cancellation (ANC), engine sound simulation.

ADSP-SC58x (Dual-core SHARC + ARM Cortex-A5)

Core Performance:

Dual-core architecture: audio DSP + application processor.

Interfaces: Ethernet, USB, CAN bus.

Advantage: Support the convergence design of in-vehicle infotainment system (IVI) and audio processing.

Please call Mingjiada Electronics for more information:

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Tel：13410018555

Email: chen13410018555@163.com

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