ENGLISH 简体中文 日本語 한국어  

    Login | Register 


   
 
Enter keywords or part number    



MAX9742
Single-/Dual-Supply, Stereo 16W, Class D Amplifier with Differential Inputs

High-Efficiency Class D Amplifier Drives 4Ohm Loads with 87% Efficiency, 8Ohm Loads with 92% Efficiency


  QuickView     Technical Documents     Ordering Info     More Information     User Comments (0)     All  
Status
Active: In Production.

Description
FULL DATA SHEET (PDF, 768kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail
The MAX9742 stereo Class D audio power amplifier delivers up to 2 x 16W into 4Ω loads. The MAX9742 features high-power efficiency (92% with 8Ω loads), eliminating the need for a bulky heatsink and conserving power. The MAX9742 operates from a 20V to 40V single supply or a ±10V to ±20V dual supply. Features include fully differential inputs, comprehensive click-and-pop suppression, low-power shutdown mode, and an externally adjustable gain. Short-circuit and thermal-overload protection prevent the device from being damaged during a fault condition.

The MAX9742 is available in a thermally efficient 36-pin TQFN (6mm x 6mm x 0.8mm) package and is specified over the -40°C to +85°C extended temperature range.

An evaluation kit is available:  MAX9742EVKIT  

Key Features   Applications/Uses
  • 2 x 16W Output Power (RL = 4Ω, THD+N = 10%)
  • High Efficiency: Up to 92% with RL = 8Ω
  • Mute and Shutdown Modes
  • Differential Inputs Suppress Common-Mode Noise
  • Adjustable Gain
  • Integrated Click-and-Pop Suppression
  • Low 0.06% THD+N at 3.5W, RL = 8Ω
  • Output Short-Circuit and Thermal Protection
  • Available in Space-Saving, 6mm x 6mm, 36-Pin TQFN Package

 
  • Audio Docking Stations
  • CRT TVs
  • Flat-Panel Display TVs
  • Multimedia Monitors

    Key Specifications:  Speaker Amplifiers
    Part Number Class Spkr. Amp. VCC
    (V)
    Spkr. Amp. VCC
    (V)
    Spkr. Amp. ICC
    (mA)
    POUT into 4Ω @ 10% THD+N
    (W)
    POUT into 8Ω @ 10% THD+N
    (W)
    Spkr. Amp. Half Pwr. THD+N
    (%)
    SNR
    (dB)
    PSRR
    (dB)
    Spkr. Amp. Ext. Gain Features Channels Price
    min max typ min min A- Weighted min See Notes
    MAX9742  D 20 40 15 16 20.5 0.06 93 68 Yes
    Differential Inputs
    Single Ended Output
    Wide Supply Range
    2 $1.60 @1k
    See All Speaker Amplifiers (30)

    Diagram
    MAX9742: Simplified Block Diagram
    Simplified Block Diagram

    Didn't Find What You Need?
  • Next Day Product Selection Assistance from Applications Engineers
  • Parametric Search
  • Applications Help
  •  QuickView   Technical Documents   Ordering Info   More Information  
     Description 
     Key Features 
     Applications/Uses 
     Key Specifications 
     Diagram 

     Data Sheet 
     Application Notes 
     Design Guides 
     Engineering Journals 
     Reliability Reports 
     Software/Models 
     Evaluation Kits 

     Price and Availability 
     Samples 
     Buy Online 
     Package Information 
     Lead-Free Information 

     Related Products 
     Notes and Comments 
     Evaluation Kits 

    Document Ref.: 19-0731; Rev 0; 2007-02-13
    This page last modified: 2009-09-07


            •         •         •     Privacy Policy     •     Legal Notices

        Copyright © 2009 by Maxim Integrated Products