TS472:Very low noise microphone preamplifier with 2.0V bias output with active low stdby mode

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.

Key Features

  • Available in flip-chip lead-free package and in QFN24 4 x 4 mm package
  • Low noise 2.0 V microphone bias output
  • ESD protection (2 kV)
  • 40 kHz bandwidth regardless of the gain
  • Low distortion: 0.1% typ.
  • Low noise: 10 nV/√Hz typ. equivalent input noise at F = 1 kHz
  • 2.2 to 5.5 V single supply operation
  • Fully-differential input/output
  • Fast start up time at 0 dB: 5 ms typ.
  • Active low standby mode function (1 μA max)
  • Low power consumption at 20 dB: 1.8 mA
产品规格
DescriptionVersionSize
DS4136: Very low noise microphone preamplifier with 2.0 V bias output and active low standby mode6.1687 KB
应用手册
DescriptionVersionSize
AN4598: Pre-amplifying the analog output of a MEMS microphone1.0325 KB
AN2240: Using the demonstration board for the TS472 low noise microphone preamplifier with 2 V bias4.2236 KB
简报
DescriptionVersionSize
ST offering in Wearable - Analog and Mixed Signal Portfolio3.01 MB
手册
DescriptionVersionSize
ST’s solutions for mobile devices3.23 MB
解决方案评估工具
型号制造商Description
STEVAL-CCA023V1Demonstration board for low noise microphone preamplifier with 2 V bias based on the TS472
样片和购买
型号PackagePacking TypeOperating Temperature (°C) (min)Operating Temperature (°C) (max)Unit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
TS472IQTVFQFPN2 24 4x4x1.0Tape And Reel-40850.7631000NECEAR99PHILIPPINES
TS472EIJTChip Scale Package 0.5mm pitchTape And Reel-40850.631000NECEAR99CHINA
质量和可靠性
型号PackageGradeRoHS Compliance GradeMaterial Declaration**
TS472IQTVFQFPN2 24 4x4x1.0IndustrialEcopack3
TS472EIJTChip Scale Package 0.5mm pitchIndustrialEcopack3md_qc-wspc-csps0.5-wspc-11-16_ekqc0472ar6-wspc-(ts472eijt)-wspc-wcp-wspc-ver2_signed.pdf
md_qc-wspc-csps0.5-wspc-11-16_ekqc0472ar6-wspc-(ts472eijt)-wspc-wcp-wspc-ver2.xml
Very low noise microphone preamplifier with 2.0 V bias output and active low standby mode TS472
circuit_diagram_11015_thumbnail.png TS472
Pre-amplifying the analog output of a MEMS microphone TS472
Using the demonstration board for the TS472 low noise microphone preamplifier with 2 V bias STEVAL-CCA023V1
Filter-free stereo 2.8 W class D audio power amplifier with selectable 3D sound effects TS4999
1.2 megapixel high dynamic range image sensor VD8640
md_qc-wspc-csps0.5-wspc-11-16_ekqc0472ar6-wspc-(ts472eijt)-wspc-wcp-wspc-ver2_signed.pdf TS472
md_qc-wspc-csps0.5-wspc-11-16_ekqc0472ar6-wspc-(ts472eijt)-wspc-wcp-wspc-ver2.xml TS472