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TDA7345D from ST,ST Microelectronics

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TDA7345D

Manufacturer: ST

DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SURROUND SOUND MATRIX

Partnumber Manufacturer Quantity Availability
TDA7345D ST 906 In Stock

Description and Introduction

DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SURROUND SOUND MATRIX The TDA7345D is an integrated circuit (IC) manufactured by STMicroelectronics. Below are the factual details about its specifications, descriptions, and features:

### **Specifications:**  
- **Manufacturer:** STMicroelectronics  
- **Type:** Audio Processor IC  
- **Package:** SO-28 (Small Outline 28-pin)  
- **Operating Voltage:** 8V to 18V (typical 12V)  
- **Current Consumption:** ~50mA (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Signal-to-Noise Ratio (SNR):** >90dB  
- **Total Harmonic Distortion (THD):** <0.01%  

### **Descriptions:**  
The TDA7345D is a high-performance audio processor designed for car radio and audio systems. It provides multiple audio processing functions, including volume control, balance, fader, tone control (bass/treble), and loudness compensation. It is commonly used in automotive infotainment systems for enhanced sound quality.  

### **Features:**  
- **4-Channel Audio Processing** (Front/Rear, Left/Right)  
- **Digital I²C Bus Control** for easy interfacing with microcontrollers  
- **Volume Control** with soft-mute function  
- **Independent Bass/Treble Adjustment**  
- **Balance and Fader Control**  
- **Loudness Compensation** for low-volume playback  
- **Low Distortion and High Signal-to-Noise Ratio**  
- **Standby Mode** for power saving  

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

Application Scenarios & Design Considerations

DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SURROUND SOUND MATRIX

Alternative Part Number

  • TDA7439DS --: Same ST audio processor family with I2C control and similar tone/volume/balance functions; often used as a drop-in substitute in audio systems.
  • PT2313L --: Widely available I2C-controlled audio processor with volume, tone, balance and input selection, functionally comparable to the TDA7345D in many designs.
  • TDA7449 --: ST audio processor with similar I2C-controlled volume and tone features; check pinout and supply differences before substitution.
  • TDA7345 --: Same TDA7345 audio processor family in a different package variant, electrically compatible for most applications.
  • TDA7342 --: Closely related ST audio processor with similar pinout and function, often used as a drop-in substitute.
  • TDA7340 --: Earlier member of the same TDA734x audio processor series with comparable functionality and interface.

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