Analog Devices MAX9737

Description

The MAX9737 mono 7W Class D amplifier provides ahigh-performance, thermally efficient amplifier solutionthat offers up to 88% efficiency at a 12V supply. Thedevice operates from 8V to 28V and provides a high 80dBPSRR, eliminating the need for a regulated power supply.Filterless modulation allows the MAX9737 to pass CEEMI limits with 1m cables using only a low-cost ferritebead and small-value capacitor on each output.Comprehensive click-and-pop suppression circuitryreduces noise on power-up/down or into and out ofshutdown or mute.An input op amp allows the user to create a lowpass orhighpass filter, and select an optimal gain. The internalprecharge circuit ensures clickless/popless turn-onwithin 10ms.The MAX9737 is available in the 24-pin, TQFN-EP packageand is specified over the -40°C to +85°C temperaturerange.

Features

♦ 8V to 28V Supply Voltage Range

♦ Spread-Spectrum Modulation Enables Low-EMISolution

♦ Passes EMI Limit with Up to 1m of Speaker Cable

♦ High 80dB PSRR

♦ Up to 88% Efficiency Eliminates Heatsink

♦ Thermal and Output Current Protection

♦ < 1μA Shutdown Mode

♦ Click-and-Pop Suppression

♦ < 10ms Turn-On Time

♦ Space-Saving, 4mm x 4mm x 0.8mm, 24-Pin TQFNPackage

Typical applications

• 2.1 Notebook PCs
• PC Surround Speakers
• LCD/PDP/CRT Monitors
• MP3 Docking Stations

More information

• Datasheet
• IC product information