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MAX9750CETI+ from MAXIM,MAXIM - Dallas Semiconductor

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MAX9750CETI+

Manufacturer: MAXIM, MAXIN

2.6W Stereo Audio Power Amplifiers and DirectDrive® Headphone Amplifiers

Partnumber Manufacturer Quantity Availability
MAX9750CETI+,MAX9750CETI MAXIM, MAXIN 1477 In Stock

Description and Introduction

2.6W Stereo Audio Power Amplifiers and DirectDrive® Headphone Amplifiers The **MAX9750CETI+** is a high-efficiency, mono Class D audio power amplifier manufactured by **Maxim Integrated (now part of Analog Devices)**. Below are its key specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**  
- **Output Power:** Up to **20W** (into 4Ω at 10% THD+N, 12V supply)  
- **Supply Voltage Range:** **4.5V to 14V**  
- **Efficiency:** Up to **90%** (Class D operation)  
- **THD+N (Total Harmonic Distortion + Noise):** **0.04%** (1W into 4Ω)  
- **Signal-to-Noise Ratio (SNR):** **95dB** (A-weighted)  
- **Shutdown Current:** **0.1µA** (typical)  
- **Operating Temperature Range:** **-40°C to +85°C**  
- **Package:** **28-pin TQFN-EP (5x5mm)**  

### **Descriptions:**  
- The MAX9750CETI+ is a **mono Class D amplifier** optimized for **portable and space-constrained audio applications**.  
- It features **spread-spectrum modulation** to reduce EMI interference.  
- Includes **integrated click-and-pop suppression** for noise-free startup/shutdown.  
- Supports **single-ended or differential inputs** with adjustable gain.  

### **Features:**  
- **High Efficiency:** Class D architecture minimizes power loss.  
- **Low Quiescent Current:** **4.5mA** (typical) for battery-powered applications.  
- **Short-Circuit & Thermal Protection:** Built-in safeguards for reliability.  
- **Flexible Gain Settings:** Adjustable via external resistors.  
- **Small Footprint:** 28-pin TQFN package saves board space.  
- **Spread-Spectrum Operation:** Reduces EMI without external filters.  

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

Application Scenarios & Design Considerations

2.6W Stereo Audio Power Amplifiers and DirectDrive® Headphone Amplifiers

Alternative Part Number

  • LM4935TL --: Integrated audio codec with headphone/speaker amplifiers, functionally similar to the MAX9750 audio subsystem and available from a major vendor.
  • SGTL5000XNEA3 --: Low-power stereo codec with headphone amplifier, comparable audio codec function and widely used as a MAX9750-class replacement.
  • WM8960CGEFL --: Stereo codec with built-in speaker and headphone drivers, offering similar audio codec integration for portable audio designs.
  • LM4935TLX/NOPB --: Integrated audio subsystem with stereo speaker and headphone amplifiers, functionally similar to the MAX9750 audio codec/amplifier family.
  • TAS2505IRGER --: Class-D speaker amplifier with integrated DAC and headphone output, suitable replacement for compact audio amplifier applications.
  • SSM2518CPZ --: Digital input Class-D audio amplifier with I2S interface, comparable audio amplification function in a similar package class.

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