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MAX9770ETI from MAXIM,MAXIM - Dallas Semiconductor

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MAX9770ETI

Manufacturer: MAXIM

1.2W Low-EMI / Filterless / Mono Class D Amplifier with Stereo DirectDrive Headphone Amplifiers

Partnumber Manufacturer Quantity Availability
MAX9770ETI MAXIM 3 In Stock

Description and Introduction

1.2W Low-EMI / Filterless / Mono Class D Amplifier with Stereo DirectDrive Headphone Amplifiers The MAX9770ETI is a Class D audio amplifier manufactured by Maxim Integrated. Below are its specifications, descriptions, and features:

### **Specifications:**  
- **Manufacturer:** Maxim Integrated  
- **Part Number:** MAX9770ETI  
- **Type:** Class D Audio Amplifier  
- **Output Power:** Up to 2.8W per channel (into 4Ω, 5V supply)  
- **Supply Voltage Range:** 2.7V to 5.5V  
- **Efficiency:** Up to 90%  
- **Total Harmonic Distortion + Noise (THD+N):** <0.1% (1W into 4Ω)  
- **Signal-to-Noise Ratio (SNR):** >90dB  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 28-pin TQFN  

### **Descriptions:**  
The MAX9770ETI is a high-efficiency, stereo Class D audio amplifier designed for portable applications. It features a low-noise modulation scheme and integrated MOSFETs, eliminating the need for external output filters. The device operates from a single supply and includes thermal and short-circuit protection.  

### **Features:**  
- **Stereo Class D Amplifier**  
- **Filterless Operation** (No external LC filter required)  
- **Low Quiescent Current** (4.5mA typical)  
- **Click-and-Pop Suppression**  
- **Thermal and Short-Circuit Protection**  
- **Shutdown Mode** (0.1μA typical)  
- **Space-Saving 28-Pin TQFN Package**  

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

Application Scenarios & Design Considerations

1.2W Low-EMI / Filterless / Mono Class D Amplifier with Stereo DirectDrive Headphone Amplifiers

Alternative Part Number

  • TPA2010D1YZFR --: Class-D mono audio amplifier in a small WCSP package, functionally similar to the MAX9770 filterless Class-D amplifier and widely available.
  • PAM8302AASCR --: Low-cost 2.5W mono Class-D audio amplifier with similar supply range and filterless output, suitable drop-in for many MAX9770 designs.
  • LM4871MX/NOPB --: Popular 3W mono audio amplifier in SOIC, comparable gain and supply range, easy second source when board space allows a larger package.

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