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TFA9842AJ from PHILIPS

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TFA9842AJ

Manufacturer: PHILIPS, NXP

7.5 W stereo power amplifier with volume control

Partnumber Manufacturer Quantity Availability
TFA9842AJ PHILIPS, NXP 23243 In Stock

Description and Introduction

7.5 W stereo power amplifier with volume control The part **TFA9842AJ** is a **dual BTL audio power amplifier** manufactured by **NXP Semiconductors**. Below are its key specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**  
- **Type:** Dual BTL (Bridge-Tied Load) Audio Power Amplifier  
- **Output Power:**  
  - **4Ω Load:** 2 × 2 W  
  - **8Ω Load:** 2 × 1.1 W  
- **Supply Voltage Range:** 3.0 V to 15 V  
- **THD (Total Harmonic Distortion):** Low distortion levels for improved audio quality  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** DBS9P (Plastic DIL-bent-SIL power package)  

### **Descriptions:**  
- Designed for **portable audio applications** such as radios, portable TVs, and multimedia devices.  
- Features **standby mode** for reduced power consumption.  
- **Short-circuit and thermal protection** for improved reliability.  
- **Minimal external components** required for operation.  

### **Features:**  
- **Dual-channel BTL configuration** for efficient power delivery.  
- **Low quiescent current** for battery-powered applications.  
- **No external coupling capacitors** needed (DC-coupled outputs).  
- **Pop-free start-up and shutdown** for improved user experience.  
- **High power supply ripple rejection** (PSRR) for stable performance.  

This information is based on the official NXP datasheet for the TFA9842AJ.

Application Scenarios & Design Considerations

7.5 W stereo power amplifier with volume control

Alternative Part Number

  • TDA7265 --: Class-AB stereo audio power amplifier in a similar power range, commonly used as a substitute in audio amplifier designs.
  • LM1875 --: Widely available audio power amplifier IC with comparable output power, suitable for replacement in many audio applications.
  • TDA7297 --: Dual audio power amplifier with similar supply voltage and output capability, often used as an alternative in amplifier circuits.
  • LM1875T --: Class AB audio power amplifier in TO-220 package with comparable output power and supply range, widely available and easy to substitute in audio amplifier designs.
  • TDA2030A --: Popular Class AB audio amplifier IC with similar power rating and pin-compatible package style, commonly used as a drop-in replacement in audio applications.

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