The MAX9714ETJ+ is a 6W, filterless, spread spectrum stereo class D amplifier in 32 pin TQFN package. It provides class AB amplifier performance with Class D efficiency, conserving board space and eliminating need for a bulky heatsink. Using a class D architecture device delivers up to 6W while offering greater than 85% efficiency. Proprietary and protected modulation and switching schemes render traditional class D output filter unnecessary. It offers two modulation schemes, a fixed frequency mode (FFM) and a spread spectrum mode (SSM) that reduces EMI-radiated emissions due to modulation frequency. The device utilizes a fully differential architecture, a full bridged output and comprehensive click and pop suppression. It is used in LCD monitors, LCD TVs, desktop PCs, LCD projectors, high end notebook and hands free car phone adaptors.
- Supply voltage range is 10V to 25V
- Operating temperature range from -40°C to 85°C
- Unique spread spectrum offers 5dB emissions improvement over conventional methods
- Low 0.07% THD+N, high PSRR (76dB at 1KHz)
- Differential inputs minimize common mode noise
- Pin selectable gain reduces component count
- Low quiescent current of 10mA, input impedance of 80Kohm at AV = 13dB
- Low power shutdown mode of 0.2μA
- Short circuit and thermal overload protection
- Gain matching of 0.5%, Output power is 6W at RL = 8ohm & 8W at RL = 16ohm
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