Leírás
TS472 Electret Microphone Audio Preamplifier Board Active Low Standby ModeFeatures
â– Low noise: 10 nV/âšHz typ. equivalent input
noise at F = 1 kHz
â– Fully-differential input/output
â– 2.2 to 5.5 V single supply operation
â– Low power consumption at 20 dB: 1.8 mA
â– Fast start up time at 0 dB: 5 ms typ.
â– Low distortion: 0.1% typ.
â– 40 kHz bandwidth regardless of the gain
â– Active low standby mode function (1 ÎĽA max)
â– Low noise 2.0 V microphone bias output
â– Available in flip-chip lead-free package and in
QFN24 4 x 4 mm package
â– ESD protection (2 kV)
Applications
â– Video and photo cameras with sound input
â– Sound acquisition and voice recognition
â– Video conference systems
â– 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.
401239072711 – ali110 (281)
