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MAX9700BEUB+ from MAX,MAXIM - Dallas Semiconductor

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MAX9700BEUB+

Manufacturer: MAX, MAXIM

1.2W, Low-EMI, Filterless, Class D Audio Amplifier

Partnumber Manufacturer Quantity Availability
MAX9700BEUB+,MAX9700BEUB MAX, MAXIM 443 In Stock

Description and Introduction

1.2W, Low-EMI, Filterless, Class D Audio Amplifier The MAX9700BEUB+ is a Class D audio amplifier manufactured by Maxim Integrated. Below are its specifications, descriptions, and features based on factual data:

### **Specifications:**  
- **Manufacturer:** Maxim Integrated  
- **Part Number:** MAX9700BEUB+  
- **Type:** Class D Audio Amplifier  
- **Package:** 10-TFSOP, 10-MSOP  
- **Output Power:** Up to 2.8W (4Ω, 5V)  
- **Supply Voltage Range:** 2.7V to 5.5V  
- **Efficiency:** Up to 87%  
- **THD+N (Total Harmonic Distortion + Noise):** 0.03% (1W, 4Ω, 5V)  
- **Signal-to-Noise Ratio (SNR):** 95dB  
- **Operating Temperature Range:** -40°C to +85°C  
- **Shutdown Current:** <1µA  

### **Descriptions:**  
The MAX9700BEUB+ is a mono, filterless Class D audio amplifier designed for portable and space-constrained applications. It eliminates the need for external LC filters, reducing PCB area and cost. The device operates from a single supply and delivers high efficiency, making it suitable for battery-powered systems.  

### **Features:**  
- **Filterless Class D Operation** – No external LC filter required.  
- **Low EMI (Electromagnetic Interference)** – Spread-spectrum modulation reduces EMI.  
- **Low Quiescent Current** – 2.5mA (typical).  
- **Short-Circuit & Thermal Protection** – Built-in safeguards for reliability.  
- **Click-and-Pop Suppression** – Minimizes audible transients during power-up/down.  
- **Small Footprint** – Available in a 10-pin µMAX® (MSOP) package.  

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

Application Scenarios & Design Considerations

1.2W, Low-EMI, Filterless, Class D Audio Amplifier

Alternative Part Number

  • LM4890MM --: Pin-compatible class-AB audio amplifier in MSOP-10 with similar output power and supply range, widely available and cost-effective.
  • PAM8302AAS --: Filterless class-D audio amplifier in MSOP-8 offering comparable output power and efficiency, suitable drop-in for many MAX9700 designs.
  • TPA2005D1DRB --: Class-D mono audio amplifier with similar power rating and low-voltage operation, good functional substitute when layout can be adjusted.
  • TPA6203A1DGN --: 1.25W mono class-AB audio amplifier in MSOP PowerPAD package, comparable performance and supply voltage.
  • NCP2890DMR2G --: 1W audio power amplifier in Micro8 package with similar shutdown and supply characteristics, suitable drop-in style replacement.

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