Microphone preamplifier amplifier Electronics Ic chip TS472IQT , Very low noise

Features

■ Low noise: 10nV/√Hz typ. equivalent input noise @ F = 1kHz

■ Fully differential input/output

■ 2.2V to 5.5V single supply operation

■ Low power consumption @20dB: 1.8mA

■ Fast start up time @ 0dB: 5ms typ.

■ Low distortion: 0.1% typ.

■ 40kHz bandwidth regardless of the gain

■ Active low standby mode function (1μA max)

■ Low noise 2.0V microphone bias output

■ Available in flip-chip lead-free package and in QFN24 4x4mm package

■ ESD protection (2kV)

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 0dB to 40dB with excellent power-supply and common-mode rejection ratios. In addition, the TS472 has a very low-noise microphone bias generator of 2V.

It also includes a complete shutdown function, with active low standby mode.

Applications

■ Video and photo cameras with sound input

■ Sound acquisition & voice recognition

■ Video conference systems

■ Notebook computers and PDAs

Figure 1. Application schematic (flip-chip)

STOCK LIST

CHONGMING GROUP (HK) INT'L CO., LTD. located in Hong Kong and Shenzhen. We are an independent Distributor of Electronic Components,established in 2008. AS a growing fast company, CM GROUP is renowned for its world-class efficiency, excellent services, and extraordinary ability to supply electronic components that are hard to find and even obsolete. We have taken pride in our innovation, reliability and service, especially in the semiconductor marketplace.
Our distribution brands include XILINX，ALTERA，ATMEL, INFINEON, ST,SAMSUNG，TEXAS INSTRUMENTS，ON，TOSHIBA，，MICROCHIP，CYPRESS，FREESCALE，etc. We distributes over 200,000 products ranging from semiconductors to resistors, capacitors, diodes, inductors, connectors, transistors, sensors and so on.
Our mission is to meet and exceed all the expecations of what we supply to customers.