PCM1864-Based Linear Microphone Board (LMB) Reference Design

(ACTIVE) TIDA-01470

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Key Document

Description

The PCM1864 linear microphone board (LMB) is an easy-to-use reference design for applications that are cost sensitive and require clear-spoken audio, such as voice triggering and speech recognition. This TI Design uses a linear microphone array (up to four) to capture a voice signal, and converts it to a digital stream that can be used by a DSP system to extract clear audio from noisy environments.

Features
  • Uses two PCM1864 4-channel audio ADCs to interface with four microphone arrays to extract clear speaker voice from noisy environments
  • EnergySense notification for signal presence and loss – central part of a low-power, high-performance audio solution

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  



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Bill of Materials (BOM)

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Part Number Buy from Texas Instruments or Third Party Buy from Authorized Distributor Status

PCM1864LMBEVM:
PCM1864 Linear Microphone Board (LMB) 103dB 4-Ch Software-Controlled Audio ADC With Universal Front End Evaluation Module

$149.00(USD)


Pricing may vary.



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TI Devices (3)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
PCM1864  103dB 4-Channel Software-Controlled Audio ADC With Universal Front End  Audio converters  Sample & Buy View Design Kits & Evaluation Modules
SN74LVC1G125  Single Bus Buffer Gate With 3-State Outputs  Buffer/driver  Sample & Buy View Design Kits & Evaluation Modules
SN74LVC1G126  Single Bus Buffer Gate With 3-State Outputs  Buffer/driver  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
SN74LVC1G125 Download Download
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SN74LVC1G126 Download Download
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Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

Datasheet (1)
Title Abstract Type Size (KB) Date Views
PDF 2358 28 Mar 2018
User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 956 23 May 2017 12
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 5088 08 Jun 2017 1 1
ZIP 16685 08 Jun 2017 2
PDF 1220 08 Jun 2017 2
PDF 141 08 Jun 2017 1 1
PDF 87 08 Jun 2017 0
PDF 257 08 Jun 2017 23
Related Tools & Software

Reference Designs  ( 2 )


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