News- Chip Introduction

News- Chip Introduction News- Chip Introduction

June 07, 2025 By QiuChelsea

Introduction to commonly used amplifier chips for ISUDAR car radio:

Amplifier chips：

1. YD7388
Type: Class D Audio Amplifier
Output Power: Suitable for high-power sound systems, usually providing higher output power.
Features: High efficiency, suitable for applications requiring low power consumption and high output power. It typically has high thermal efficiency and is compact in size.
Applications: Widely used in car audio systems and home audio systems.

2. TCB001
Type: Integrated Audio Amplifier
Output Power: Typically smaller power, generally suitable for small audio systems or as a low-power output chip.
Features: Provides basic audio amplification functionality, possibly with moderate power and sound quality.
Applications: Typically used in low-power applications, such as small speakers and desktop audio systems.

3. TDA7388
Type: Class AB Audio Amplifier
Output Power: Typically 20W to 40W, suitable for medium to small-sized audio systems.
Features: Provides high-quality audio output, with a balanced sound, suitable for home audio systems and car audio systems. It has high thermal efficiency and is generally stable in design.
Applications: Commonly used in car audio systems and home audio systems.

4. AC7315
Type: Integrated Audio Amplifier
Output Power: More suitable for medium to low-power applications, typically used in small or medium-sized audio systems (around 20W to 50W).
Features: Focuses on stability and sound quality, suitable for basic audio equipment.
Applications: Small speakers, car audio, home audio, etc.

5. ST7850
Type: Class AB Audio Amplifier
Output Power: High power output (around 50W to 100W), suitable for larger audio systems.
Features: High audio quality and output capability, suitable for audio systems that require large power. Typically has good noise control and excellent sound quality.
Applications: Used in high-power home audio systems and car audio systems.

6. TDA7851
Type: Class AB Audio Amplifier
Output Power: High power output, capable of providing more audio power, suitable for larger power audio systems (around 50W to 100W).
Features: Provides clear audio output, suitable for high-performance audio systems, particularly in car audio systems.
Applications: Car audio systems, home theater systems, television audio systems.

Summary Comparison:
Output Power: The TDA7851 and ST7850 are chips with higher output power, suitable for high-power audio systems; while the TDA7388, AC7315, and TCB001 have relatively lower output power, making them more suitable for medium to small-sized audio systems.
Sound Quality: The TDA7388 and TDA7851 offer better sound quality, especially suited for high-fidelity audio systems. The ST7850 also delivers high sound quality, ideal for high-power systems.
Efficiency: Class D amplifiers like the YD7388 typically have higher power efficiency compared to Class AB amplifiers, making them suitable for applications where power efficiency is a priority.

Radio chips

1. 8035-FM
Purpose: An FM receiver chip designed for basic specifications, likely targeting simple radio applications.
Features: Low-cost solution suitable for budget-friendly products.
Applications: General radios, basic car systems.
Disadvantage: Low performance and relatively limited functionality.

2. SI4755
Purpose: A high-performance FM/AM receiver chip from Silicon Labs.
Features: Multi-band support, high integration (single-chip solution), low power consumption, RDS/RBDS support.
Applications: Car audio systems, home audio equipment, etc.
Advantages: High flexibility and excellent RF performance, especially suited for scenarios requiring both AM and FM.
Disadvantage: Slightly higher cost with potentially more complex peripheral design.

3. TDA7708
Purpose: An NXP chip designed for automotive radio broadcasts, supporting FM/AM and various digital broadcast standards.
Features: Integrated high-performance DSP for noise reduction and strong anti-interference capability, supports RDS.
Applications: High-end automotive systems and devices that demand high audio quality and reliability.
Advantages: Excellent sound quality and high stability, perfect for automotive electronic environments.
Disadvantage: Higher price and potentially increased development costs due to complex design.

4. TEF6686
Purpose: A highly regarded tuner and radio chip from NXP, offering FM/AM and digital broadcast solutions.
Features: Exceptional reception performance, supports FM, AM, RDS, and even some digital broadcast standards.
Applications: High-end automotive electronics and premium audio equipment.
Advantages: Ultra-high sensitivity, excellent signal reception, and outstanding sound quality.
Disadvantages: Higher price and possible supply limitations, reducing its accessibility.

Summary of Comparison:
Best for Low-End Applications: 8035-FM
Versatile and Balanced for Mid-Range Applications: SI4755
Best for High-End Automotive Audio Systems: TDA7708
Ideal for Scenarios with Stringent Audio Quality Requirements: TEF6686

DSP Processing Chip：

ADAU 1701：

The ADAU1701 is a SigmaDSP digital signal processor chip from Analog Devices, designed for audio processing applications. Key features include:

Audio Processing: It provides features for equalization, filtering, dynamic range control, and effects.
SigmaStudio Support: Users can configure and program the chip using the SigmaStudio graphical development environment.
Analog Inputs/Outputs: It supports multiple audio input and output channels.
Integrated ADC/DAC: Includes built-in analog-to-digital converters (ADCs) and digital-to-analog converters (DACs) for direct audio interface.