TS472 erősítő modul alacsony zajszintű elektret mikrofon audio előerősítő kártya 2,0 V előfeszítő kimenetű PDA

TS472 Amplifier Module Low Noise Electret Microphone Audio Preamplifier Board With 2.0 V Bias Output PDA audio development board
Features: Low noise: 10 nV/Hz typ. equivalent input noise at F = 1 kHz Fully-differential input/output 2.2 to 5.5 V single supply operation Low power consumption at 20 dB: 1.8 mA Fast start up time at 0 dB: 5 ms typ. Low distortion: 0.1% typ. 40 kHz bandwidth regardless of the gain Active low standby mode function (1 A max) Low noise 2.0 V microphone bias output Available in flip-chip lead-free package and in QFN24 4 x 4 mm package ESD protection (2 kV) Applications Video and photo cameras with sound input Sound acquisition and voice recognition Video conference systems Notebook computers and PDAs Description: The TS472 is a differential-input microphone preamplifier optimized for high-performance PDA and notebook audio systems. This device features an adjustable gain from 0 to 40 dB with excellent power-supply and commonmode rejection ratios. In addition, the TS472 has a very low noise microphone bias generator of 2 V. It also includes a complete shutdown function,with active low standby mode.