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MAX9709ETN+ from MAXIM,MAXIM - Dallas Semiconductor

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MAX9709ETN+

Manufacturer: MAXIM

25W/50W, Filterless, Spread-Spectrum, Stereo/Mono, Class D Amplifier

Partnumber Manufacturer Quantity Availability
MAX9709ETN+ MAXIM 150 In Stock

Description and Introduction

25W/50W, Filterless, Spread-Spectrum, Stereo/Mono, Class D Amplifier The MAX9709ETN+ is a Class D audio amplifier from Maxim Integrated (now part of Analog Devices). Below are its specifications, descriptions, and features based on factual information:  

### **Specifications:**  
- **Manufacturer:** Maxim Integrated (Analog Devices)  
- **Part Number:** MAX9709ETN+  
- **Type:** Class D Audio Amplifier  
- **Output Power:** Up to 20W (mono) into a 4Ω load at 10% THD+N with a 12V supply  
- **Supply Voltage Range:** 4.5V to 14V  
- **Efficiency:** Up to 87%  
- **THD+N (Total Harmonic Distortion + Noise):** 0.04% (typical at 1W into 8Ω)  
- **Signal-to-Noise Ratio (SNR):** 95dB (A-weighted)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 56-Pin TQFN (Thin Quad Flat No-Lead)  

### **Descriptions:**  
The MAX9709ETN+ is a high-efficiency, mono Class D audio amplifier designed for applications requiring high output power with minimal heat dissipation. It features a fixed-gain architecture, eliminating the need for external gain-setting resistors. The device includes integrated feedback and error correction to improve audio performance while reducing external component count.  

### **Features:**  
- **High Efficiency:** Up to 87%, reducing power dissipation.  
- **Fixed Gain (20dB):** Simplifies design by eliminating external gain-setting components.  
- **Spread-Spectrum Modulation:** Reduces EMI emissions.  
- **Integrated Feedback:** Enhances audio quality and reduces distortion.  
- **Pop-and-Click Suppression:** Minimizes audible noise during power-up/down.  
- **Thermal and Short-Circuit Protection:** Ensures device reliability.  
- **Low Quiescent Current:** 7mA (typical) for power-saving operation.  
- **Single-Supply Operation:** Compatible with 4.5V to 14V supplies.  

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

Application Scenarios & Design Considerations

25W/50W, Filterless, Spread-Spectrum, Stereo/Mono, Class D Amplifier

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