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TDA2822 from SGS-THOMSON

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TDA2822

Manufacturer: SGS-THOMSON, UTC, 国产, ST, STM, PHI

Dual low voltage power amplifier. Operating supply voltage Vcc=1.8V-14V.

Partnumber Manufacturer Quantity Availability
TDA2822 SGS-THOMSON, UTC, 国产, ST, STM, PHI 13138 In Stock

Description and Introduction

Dual low voltage power amplifier. Operating supply voltage Vcc=1.8V-14V. The TDA2822 is a dual low-power audio amplifier integrated circuit (IC) manufactured by **STMicroelectronics**.  

### **Specifications:**  
- **Supply Voltage (Vcc):** 1.8V to 15V (typically 3V to 12V for optimal performance)  
- **Output Power:**  
  - 1W per channel (at 4Ω, 9V, 10% THD)  
  - 0.65W per channel (at 8Ω, 9V, 10% THD)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Type:** DIP-8, SO-8 (Miniature Outline)  
- **Total Harmonic Distortion (THD):** 0.2% (typical at 1kHz, 1W)  
- **Quiescent Current:** 6mA (typical)  
- **Gain:** 39dB (fixed internally)  
- **Channel Separation:** 50dB (typical)  
- **Load Impedance:** 4Ω to 32Ω  

### **Descriptions:**  
- The TDA2822 is a **monolithic integrated circuit** designed for portable audio applications.  
- It is a **dual-channel amplifier**, meaning it can drive two speakers or be bridged for higher output power.  
- It is commonly used in **headphone amplifiers, portable radios, and small audio devices** due to its low power consumption and compact size.  

### **Features:**  
- **Low crossover distortion**  
- **Low quiescent current**  
- **Bridge or stereo configuration**  
- **Wide supply voltage range**  
- **Internal thermal shutdown protection**  
- **Short-circuit protection**  
- **No external components required for basic operation**  

The TDA2822 is widely used in DIY electronics and consumer audio products due to its simplicity and efficiency.

Application Scenarios & Design Considerations

Dual low voltage power amplifier. Operating supply voltage Vcc=1.8V-14V.

Alternative Part Number

  • LM386N-1 --: Widely available low-voltage audio power amplifier in DIP-8, commonly used as a drop-in substitute for TDA2822 in small audio projects with similar supply range and output power.
  • NJM2073D --: Dual low-voltage audio power amplifier in DIP-8 with comparable supply voltage range and output capability, functionally similar to the TDA2822 for portable audio applications.
  • TDA2822M --: Same amplifier family from the successor company of SGS-Thomson, offering equivalent electrical characteristics and pinout compatibility for direct replacement.
  • LM386 --: Classic low-voltage audio power amplifier in the same power class, widely available and pin-compatible in many circuits with minor component changes.
  • NJM2073 --: Dual low-voltage audio power amplifier with similar output power and supply range, suitable drop-in replacement for small speaker applications.
  • TDA7052 --: 1W mono audio power amplifier with comparable supply range and output capability, suitable for low-power audio designs.

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