MAX9713, MAX9714 Filterless, 6W, spread-spectrum mono / stereo Class D amplifier
MAX9713, MAX9714 overview
The MAX9713 / MAX9714 channel / stereo Class D amplifier provides Class AB amplifier performance, and has Class D efficiency, saves board space, and does not require a bulky heat sink. Due to the use of class D structure, even if this type of device outputs 6W of power, it can still ensure that the efficiency is higher than 85%. Proprietary and patented modulation and conversion schemes eliminate the output filters required by traditional Class D amplifiers.
The MAX9713 / MAX9714 provide two modulation schemes: fixed mode (FFM) and spread spectrum mode (SSM) (this mode reduces EMI radiation generated by the modulation frequency). The device utilizes a fully differential structure, a full-bridge output, and a comprehensive click-suppression circuit.
The MAX9713 / MAX9714 have a PSRR of 76dB, a low THD + N of 0.07%, and an SNR of more than 95dB. The short-circuit and thermal overload protection functions prevent the device from damage under fault conditions. The MAX9713 is available in a 32-pin TQFN (5mm x 5mm x 0.8mm) package. The MAX9714 is available in a 32-pin TQFN (7mm x 7mm x 0.8mm) package. Both devices operate in the extended temperature range of -40 ° C to + 85 ° C.
Key features of MAX9713, MAX9714
The unique spread-spectrum mode of the filter-less Class D amplifier reduces the radiation efficiency by 5dB by up to 85% compared to the traditional method. Up to 85% provides 6W output power to an 8Ω load. Very low 0.07% THD + N High PSRR (76dB at 1kHz) 10V to 25V single power Differential input minimizes common-mode noise as much as possible. Pin selectable gain reduces component count. Industry-leading integrated click suppression capability. Low quiescent current (18mA). Low-power shutdown mode (0.2µA). Short circuit and thermal overload protection uses high efficiency Thermal, space-saving package 32-pin TQFN package (5mm x 5mm x 0.8mm)-MAX9713 32-pin TQFN package (7mm x 7mm x 0.8mm)-MAX9714MAX9713, MAX9714 Application / Use
Audio Desktop PC
Hands-free car phone High-end notebook LCD monitor LCD projector LCD TV
Telephone adapter
MAX9713 / MAX9714 Chinese information pdf
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