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LMV1023 Datasheet Pdm Output Pre-amplifier

Manufacturer: National Semiconductor (now Texas Instruments)

Overview: LMV1022/LMV1023 PDM Output Preamp for Electret Microphones LMV1022/LMV1023 OBSOLETE July 8, 2011 PDM Output Pre-Amplifier for Electret Microphones.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

The LMV1022 and LMV1023 integrate a pre-amplifier and ADC that can be mounted inside an electret condenser microphone (ECM).

The digital output signal is a pulse density modulation (PDM) bitstream that alows the microphone to connect directly to the DSP or baseband processor.

Part of National Semiconductor’s Powerwise™ family of products, the LMV1022/LMV1023 consume 900µW of power during operation, offering significant power savings over an analog microphone with an external ADC.

Key Features

  • Integrated 21 dB Pre-Amp and ADC for significant power and space savings.
  • Integrated high-pass Filter to reduce 'Plop Noise'.
  • Excellent RF immunity (e. g. buzz noise).
  • LMV1022 and LMV1023 combine to create 4-wire Stereo Solution.
  • Very thin 0.35mm micro SMD packaging.
  • Adhesion technology >1kg.

More Datasheets from National Semiconductor (now Texas Instruments)

Part Number Description
LMV102 Fixed-Gain Amplifiers
LMV1022 PDM Output Pre-Amplifier
LMV1024 (LMV1024 / LMV1026) PDM Output
LMV1026 (LMV1024 / LMV1026) PDM Output
LMV101 Fixed-Gain Amplifiers
LMV1012 Pre-Amplified ICs for High Gain 2-Wire Microphones
LMV1015 Built-in Gain IC
LMV1031-20 Amplifier
LMV1032-06 Amplifiers for 3 Wire Analog Electret Microphones
LMV1032-15 Amplifiers

LMV1023 Distributor