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

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

Product Details

Key Features

Simplified Block Diagram

Support & Training

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Sampling:
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Key Features

  • 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

Applications/Uses

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

Description

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.

Simplified Block Diagram

MAX9742: Simplified Block Diagram MAX9742: Simplified Block Diagram Zoom icon

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.