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LMV1023 - PDM Output Pre-Amplifier

Download the LMV1023 datasheet PDF (LMV1022 included). The manufacturer datasheet provides complete specifications, pinout details, electrical characteristics, and typical applications for pdm output pre-amplifier.

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.

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.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LMV1022-NationalSemiconductor.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

  • LMV1024 - PDM Output with Pre-Amplifier (Texas Instruments)
  • LMV1026 - PDM Output with Pre-Amplifier (Texas Instruments)
  • LMV1012 - LMV1012 Analog Series: Pre-Amplified IC for High Gain 2-Wire Microphones (Rev. H) (ETCTI)
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  • LMV1031 - LMV1031-20 Amp for Internal 3-Wire Analog Microphones External Preamp (Rev. B) (ETCTI)
  • LMV1032 - LMV1032-06/LMV1032-15/LMV1032-25 Amps for 3-Wire Analog Electret Microphones (Rev. G) (ETCTI)
  • LMV1088 - Dual Input Far Field Noise Suppression Microphone Amp w/Auto Cal (Rev. J) (ETCTI)
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  • LMV1090 - Far Field Noise Suppression Microphone Amplifier (National Semiconductor Corporation)
Other Datasheets by National Semiconductor
  • 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

Full PDF Text Transcription

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LMV1022/LMV1023 PDM Output Preamp for Electret Microphones LMV1022/LMV1023 OBSOLETE July 8, 2011 PDM Output Pre-Amplifier for Electret Microphones 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. The LMV1022 outputs its data on the rising clock edge. The LMV1023 outputs its data on the falling clock edge.
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