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PCMD3180

ACTIVE

Eight-channel pulse-density-modulation input to TDM or I²S output converter

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Data sheet

PCMD3180

ACTIVE
Data sheet Order now

Product details

Number of ADC channels 8 Analog inputs 0 Digital audio interface I2S, L, TDM Control interface I2C, SPI Sampling rate (max) (kHz) 768 ADC SNR (typ) (dB) 127 Rating Catalog Analog outputs 0 Operating temperature range (°C) -40 to 125
Number of ADC channels 8 Analog inputs 0 Digital audio interface I2S, L, TDM Control interface I2C, SPI Sampling rate (max) (kHz) 768 ADC SNR (typ) (dB) 127 Rating Catalog Analog outputs 0 Operating temperature range (°C) -40 to 125
WQFN (RTW) 24 16 mm² 4 x 4
  • 8-channel PDM microphones simultaneous conversion
  • PDM input to TDM or I2S output converter performance:
    • 127-dB dynamic range (DR) with high performance 5th order PDM input
    • 117-dB dynamic range (DR) with high performance 4th order PDM input
  • Channel summing mode, DR performance with high performance 4th order PDM input:
    • 120-dB, 2-channel summing
    • 123-dB, 4-channel summing
  • Programmable PDM clock output :
    • 768 kHz to 6.144 MHz
  • Programmable output sample rate (fS) :
    • 8 kHz to 768 kHz
  • Programmable channel settings:
    • Digital volume control: –100 dB to 27 dB
    • Gain calibration with 0.1-dB resolution
    • Phase calibration with 163-ns resolution
  • Microphone bias or supply voltage generation
  • Low-latency signal processing filter selection
  • Programmable HPF and biquad digital filters
  • I2C or SPI controls
  • Integrated high-performance audio PLL
  • Automatic clock divider setting configurations
  • Audio serial data interface:
    • Format: TDM, I2S, or left-justified (LJ)
    • Word length: 16 bits, 20 bits, 24 bits, or 32 bits
    • Master or slave interface
  • Single-supply operation: 3.3 V or 1.8 V
  • I/O-supply operation: 3.3 V or 1.8 V
  • Power consumption for 1.8-V supply:
    • 2.9 mW/channel at 16-kHz sample rate
    • 2.5 mW/channel at 48-kHz sample rate
  • 8-channel PDM microphones simultaneous conversion
  • PDM input to TDM or I2S output converter performance:
    • 127-dB dynamic range (DR) with high performance 5th order PDM input
    • 117-dB dynamic range (DR) with high performance 4th order PDM input
  • Channel summing mode, DR performance with high performance 4th order PDM input:
    • 120-dB, 2-channel summing
    • 123-dB, 4-channel summing
  • Programmable PDM clock output :
    • 768 kHz to 6.144 MHz
  • Programmable output sample rate (fS) :
    • 8 kHz to 768 kHz
  • Programmable channel settings:
    • Digital volume control: –100 dB to 27 dB
    • Gain calibration with 0.1-dB resolution
    • Phase calibration with 163-ns resolution
  • Microphone bias or supply voltage generation
  • Low-latency signal processing filter selection
  • Programmable HPF and biquad digital filters
  • I2C or SPI controls
  • Integrated high-performance audio PLL
  • Automatic clock divider setting configurations
  • Audio serial data interface:
    • Format: TDM, I2S, or left-justified (LJ)
    • Word length: 16 bits, 20 bits, 24 bits, or 32 bits
    • Master or slave interface
  • Single-supply operation: 3.3 V or 1.8 V
  • I/O-supply operation: 3.3 V or 1.8 V
  • Power consumption for 1.8-V supply:
    • 2.9 mW/channel at 16-kHz sample rate
    • 2.5 mW/channel at 48-kHz sample rate

The PCMD3180 is a high-performance, pulse-density-modulation (PDM) input to time-division multiplexing (TDM) or I2S output converter that supports simultaneous sampling of up to eight digital channels for the PDM microphone input. The device integrates programable digital volume control, a microphone bias voltage, a phase-locked loop (PLL), a programmable high-pass filter (HPF), biquad filters, low-latency filter modes, and allows for output sample rates up to 768 kHz. The device supports time-division multiplexing (TDM), I2S, or left-justified (LJ) audio formats, and can be controlled with either the I2C or SPI interface. Additionally, the PCMD3180 supports master and slave mode selection for the audio bus interface operation. These integrated high-performance features, along with the ability to be powered from a single-supply of 3.3 V or 1.8 V, make the device an excellent choice for space-constrained audio systems in far-field microphone recording applications.

The PCMD3180 is specified from –40°C to +125°C, and is offered in a 24-pin WQFN package.

The PCMD3180 is a high-performance, pulse-density-modulation (PDM) input to time-division multiplexing (TDM) or I2S output converter that supports simultaneous sampling of up to eight digital channels for the PDM microphone input. The device integrates programable digital volume control, a microphone bias voltage, a phase-locked loop (PLL), a programmable high-pass filter (HPF), biquad filters, low-latency filter modes, and allows for output sample rates up to 768 kHz. The device supports time-division multiplexing (TDM), I2S, or left-justified (LJ) audio formats, and can be controlled with either the I2C or SPI interface. Additionally, the PCMD3180 supports master and slave mode selection for the audio bus interface operation. These integrated high-performance features, along with the ability to be powered from a single-supply of 3.3 V or 1.8 V, make the device an excellent choice for space-constrained audio systems in far-field microphone recording applications.

The PCMD3180 is specified from –40°C to +125°C, and is offered in a 24-pin WQFN package.
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PCMD3140 ACTIVE Four-channel PDM-input to TDM- or I²S-output converter Identical performance; supports four digital microphones, smaller package

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* Data sheet PCMD3180 Octal-Channel, PDM Input to TDM or I2S Output Converter datasheet PDF | HTML 14 Aug 2019

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

ADC3140EVM-PDK — TLV320ADC3140 quad-channel 768-kHz Burr-Brown™ audio ADC evaluation module

The ADC3140EVM-PDK is an evaluation module (EVM) that allows the user to test the capabilities of the TLV320ADC3140 device, which is a quad-channel, high-performance audio analog-to-digital converter (ADC). TLV320ADC3140 is intended for voice-activated systems, professional (...)

User guide: PDF
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Application software & framework

PUREPATHCONSOLE — PurePath™ Console graphical development suite for audio system design and development

PurePath™ Console is a highly integrated and easy-to-use audio development suite designed specifically to simplify the evaluation, configuration and debug process associated with the development of audio products. Watch how easy it is to use the PurePath™ Console 3 software.

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Driver or library

PCMD31XX-DRIVERS — PCMD31xx ADC family Linux driver support

These Linux drivers support our low-power audio analog-to-digital converters (ADCs) in the PCMD31xx device family, and include both .c and .h files. The "Go to third party" buttons below will allow you to downlod the appropriate drivers from git.kernal.org.

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Support software

SBAC292 — PCMD31x0 C Source Headers

Supported products & hardware

Supported products & hardware

Products
Audio ADCs
PCMD3140 — Four-channel PDM-input to TDM- or I²S-output converter PCMD3180 — Eight-channel pulse-density-modulation input to TDM or I²S output converter
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Design tool

ADCX140EVM-SW — Evaluation software for ADC3140EVM-PDK, ADC5140EVM-PDK and ADC6140EVM-PDK

Evaluation software for ADC3140EVM-PDK, ADC5140EVM-PDK and ADC6140EVM-PDK
Supported products & hardware

Supported products & hardware

Products
Audio ADCs
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Hardware development
Evaluation board
ADC5140EVM-PDK — TLV320ADC5140 quad-channel 768-kHz Burr-Brown™ audio ADC evaluation module ADC6140EVM-PDK — TLV320ADC6140 quad-channel 768-kHz Burr-Brown™ audio ADC evaluation module
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Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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WQFN (RTW) 24 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

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