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

リソース

技術文書

製品スペック
Description バージョン サイズ
DS4136 DS4136: Very low noise microphone preamplifier with 2.0 V bias output and active low standby mode 6.1 687 KB
アプリケーションノート
Description バージョン サイズ
AN4598 AN4598: Pre-amplifying the analog output of a MEMS microphone 1.0 325 KB
AN2240 AN2240: Using the demonstration board for the TS472 low noise microphone preamplifier with 2 V bias 4.2 236 KB

プレゼンテーション & トレーニング資料

プレゼンテーション
Description バージョン サイズ
ST offering in Wearable - Analog and Mixed Signal Portfolio 3.0 1 MB

Publications and Collaterals

パンフレット
Description バージョン サイズ
ST’s solutions for mobile devices 3.2 2 MB

ツール & ソフトウェア

評価ツール
ソリューション用評価ボード
サポート & コミュニティ

サンプル & 購入

製品型番 パッケージ Packing Type Operating Temperature (°C) (min) Operating Temperature (°C) (max) Marketing Status Unit Price (US$) * 数量 ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
TS472IQT VFQFPN2 24 4x4x1.0 Tape And Reel -40 85 Active 0.763 1000 NEC EAR99 PHILIPPINES MORE INFO DISTRIBUTOR AVAILABILITY
TS472EIJT Chip Scale Package 0.5mm pitch Tape And Reel -40 85 Active 0.63 1000 NEC EAR99 CHINA MORE INFO No availability reported, please contact our Sales office
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(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

品質 & 信頼性

製品型番 Marketing Status パッケージ Grade RoHS Compliance Grade Material Declaration**
TS472IQT アクティブVFQFPN2 24 4x4x1.0IndustrialEcopack3 0 0
TS472EIJT アクティブChip Scale Package 0.5mm pitchIndustrialEcopack3 0 0
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(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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