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MAX9789AETJ+ from MAXIM,MAXIM - Dallas Semiconductor

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MAX9789AETJ+

Manufacturer: MAXIM, MAXIN

Windows Vista-Compliant, Stereo Class AB Speaker Amplifiers and DirectDrive Headphone Amplifiers

Partnumber Manufacturer Quantity Availability
MAX9789AETJ+,MAX9789AETJ MAXIM, MAXIN 8047 In Stock

Description and Introduction

Windows Vista-Compliant, Stereo Class AB Speaker Amplifiers and DirectDrive Headphone Amplifiers The MAX9789AETJ+ is a stereo Class D audio power amplifier manufactured by Maxim Integrated (now part of Analog Devices). Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** Maxim Integrated  
- **Part Number:** MAX9789AETJ+  
- **Type:** Stereo Class D Audio Power Amplifier  
- **Package:** 32-TQFN (5x5)  
- **Output Power:** Up to **2.3W per channel** (into 4Ω at 5V supply)  
- **Supply Voltage Range:** **2.7V to 5.5V**  
- **Efficiency:** Up to **90%**  
- **THD+N (Total Harmonic Distortion + Noise):** **0.03%** (typical)  
- **SNR (Signal-to-Noise Ratio):** **95dB** (typical)  
- **Operating Temperature Range:** **-40°C to +85°C**  
- **Shutdown Current:** **0.1µA** (typical)  

### **Descriptions:**
The MAX9789AETJ+ is a high-efficiency, stereo Class D audio amplifier designed for portable and battery-powered applications. It features a low-noise, low-distortion architecture, making it suitable for high-quality audio playback in devices such as smartphones, tablets, and portable media players.  

### **Features:**  
- **Stereo Class D Amplifier:** Provides high-efficiency audio amplification.  
- **Low Power Consumption:** Optimized for battery-powered applications.  
- **Pop-and-Click Suppression:** Minimizes audible noise during power-up/down.  
- **Thermal and Short-Circuit Protection:** Enhances reliability.  
- **I²C Control Interface:** Allows adjustable gain and shutdown modes.  
- **Filterless Operation:** Reduces external component count.  
- **Low EMI Emission:** Complies with stringent EMI requirements.  

This information is strictly factual and sourced from the manufacturer's datasheet.

Application Scenarios & Design Considerations

Windows Vista-Compliant, Stereo Class AB Speaker Amplifiers and DirectDrive Headphone Amplifiers

Alternative Part Number

  • LM49450SQ/NOPB --: Class D audio amplifier with similar stereo speaker drive and I2S interface, pin-compatible footprint in a comparable package, widely available from TI.
  • TAS5720LRSMR --: Digital-input Class D audio amplifier offering comparable output power and I2S/PCM interface, suitable drop-in functional replacement with different series naming.
  • PAM8406DR --: Low-cost stereo Class D audio amplifier with similar supply range and output power, useful as a second-source alternative when exact MAXIM features are not required.
  • SSM2518CPZ --: I2S-input Class D audio amplifier with integrated DSP, providing a similar feature set for portable audio designs.

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