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TDA8579 from PH

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TDA8579

Manufacturer: PH, PHILIPS, PHILIPS

Dual common-mode rejection differential line receiver

Partnumber Manufacturer Quantity Availability
TDA8579 PH, PHILIPS, PHILIPS 887 In Stock

Description and Introduction

Dual common-mode rejection differential line receiver The TDA8579 is a power amplifier IC manufactured by PHILIPS (now NXP Semiconductors). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**
- **Type:** Quad BTL (Bridge-Tied Load) Car Radio Power Amplifier  
- **Output Power:** 4 × 22 W (max) at 4 Ω, 14.4 V, 10% THD  
- **Supply Voltage Range:** 6 V to 18 V (operational), max 28 V (non-operational)  
- **Load Impedance:** 4 Ω (minimum)  
- **Total Harmonic Distortion (THD):** Typically 0.1% at 4 Ω, 1 kHz  
- **Signal-to-Noise Ratio (SNR):** > 90 dB  
- **Standby Current:** < 100 µA  
- **Operating Temperature Range:** -40°C to +105°C  

### **Descriptions:**
- The TDA8579 is a monolithic quad BTL power amplifier designed for car radio applications.  
- It features short-circuit protection, thermal protection, and load dump protection.  
- The IC includes diagnostic functions for fault detection (e.g., short-circuit, overtemperature).  
- It operates in a single-ended supply configuration.  

### **Features:**
- **Quad BTL Output:** Allows driving four speakers independently.  
- **Mute and Standby Modes:** Low power consumption when inactive.  
- **Protection Circuits:**  
  - Short-circuit protection (to ground and across load).  
  - Thermal shutdown with hysteresis.  
  - Reverse polarity protection.  
- **Diagnostic Output:** Provides error flagging for fault conditions.  
- **Low External Component Count:** Simplifies PCB design.  

For exact details, refer to the official **PHILIPS/NXP datasheet**.

Application Scenarios & Design Considerations

Dual common-mode rejection differential line receiver

Alternative Part Number

  • LM4871 --: Audio power amplifier with similar function and output capability, widely available and pin-compatible in many designs.
  • TDA2822M --: Dual low-voltage audio amplifier from a different series, suitable as a functional replacement for small audio amplification.
  • PAM8403 --: Class-D stereo audio amplifier offering comparable output power with higher efficiency, usable as a modern substitute.
  • LM833N --: Dual low-noise audio op-amp in DIP-8, widely used as a drop-in replacement for audio preamp stages in similar circuits.
  • NE5532N --: Industry-standard dual low-noise audio op-amp with DIP-8 pinout, excellent audio performance and broad availability.
  • MC33078N --: Dual low-noise audio operational amplifier in DIP-8, suitable for audio signal processing with similar electrical characteristics.

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