MAX9704ETJ+

The MAX9704ETJ+ is a 10W stereo, filterless, spread spectrum, class D amplifier in 32 pin TQFN package. The mono/stereo class D audio power amplifier provides class AB amplifier performance with class D efficiency conserving board space and eliminating the need for a bulky heatsink. The protected modulation and switching schemes render the traditional class D output filter unnecessary. The MAX9704 offers two modulation schemes, a fixed frequency mode (FFM) and a spread spectrum mode (SSM) that reduces EMI-radiated emissions due to the modulation frequency. The device utilizes a fully differential architecture, a full bridged output and comprehensive click and pop suppression.

• Supply voltage range is 10V to 25V
• Operating temperature range from -40°C to 85°C
• Unique spread spectrum mode offers 5dB emissions improvement over conventional methods
• Up to 78% efficient (RL = 8ohm) and up to 88% efficient (RL = 16ohm)
• 2x10W continuous output power into 8ohm
• Low THD+N of 0.07%
• High PSRR of 80dB at 1KHz and SNR in excess of 95dB
• Short circuit and thermal overload protection
• Low quiescent current of 24mA and low power shutdown mode reduces supply current to 0.2μA
• Differential inputs minimize common-mode noise

Applications

Audio, Portable Devices

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party