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TDA7431 from ST,ST Microelectronics

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TDA7431

Manufacturer: ST

DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SURROUND SOUND MATRIX AND VOICE CANCELLER

Partnumber Manufacturer Quantity Availability
TDA7431 ST 48 In Stock

Description and Introduction

DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SURROUND SOUND MATRIX AND VOICE CANCELLER The TDA7431 is a digital-controlled audio processor manufactured by STMicroelectronics. Here are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**  
- **Supply Voltage (VCC):** 8V to 10V  
- **Operating Voltage Range:** 7V to 10.2V  
- **Standby Current:** < 1 mA  
- **Total Harmonic Distortion (THD):** < 0.01%  
- **Signal-to-Noise Ratio (SNR):** > 90 dB  
- **Number of Inputs:** 4 stereo inputs  
- **Number of Outputs:** 1 stereo output  
- **Control Interface:** I²C bus (serial control)  
- **Package:** SO-20 (20-pin Small Outline package)  

### **Descriptions:**  
The TDA7431 is a digital audio processor designed for high-quality audio applications. It provides functions such as input selection, volume control, bass/treble adjustment, and loudness compensation. It is controlled via an I²C interface, making it suitable for microcontroller-based systems.  

### **Features:**  
- **Input Selection:** 4 stereo inputs (switchable)  
- **Volume Control:** Adjustable in 1 dB steps (0 dB to -79 dB)  
- **Bass & Treble Control:** Adjustable in 1 dB steps (±14 dB)  
- **Loudness Compensation:** Adjustable for low-volume listening  
- **Mute Function:** Software-controllable mute for each channel  
- **Low Distortion & Noise:** Ensures high-fidelity audio processing  
- **I²C Bus Control:** Allows easy integration with microcontrollers  

This information is based solely on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SURROUND SOUND MATRIX AND VOICE CANCELLER

Alternative Part Number

  • PT2313L --: Audio tone/volume processor with I2C control, functionally similar to TDA7431 and commonly used as a drop-in replacement in audio systems.
  • TDA7440 --: Same ST audio processor family with comparable tone and volume control features, offering similar pinout and I2C interface.
  • LM1036N --: Analog tone and volume control IC suitable for audio applications, usable as an alternative where digital control is not strictly required.
  • TDA7439 --: Same TDA74xx audio processor family from ST with I2C control and tone/volume features, commonly used as a drop-in upgrade in similar circuits.

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