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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 Sampling rate (max) (kHz) 768 Analog inputs 0 Control interface I2C, SPI Digital audio interface I2S, L, TDM ADC SNR (typ) (dB) 127 Rating Catalog Operating temperature range (°C) -40 to 125 Analog outputs 0
Number of ADC channels 8 Sampling rate (max) (kHz) 768 Analog inputs 0 Control interface I2C, SPI Digital audio interface I2S, L, TDM ADC SNR (typ) (dB) 127 Rating Catalog Operating temperature range (°C) -40 to 125 Analog outputs 0
WQFN (RTW) 24 16 mm² 4 x 4
  • 8-channel PDM microphones simultaneous conversion
  • PDM input to TDM or I2S output converter performance:
    • 127dB dynamic range (DR) with high performance 5th order PDM input
    • 117dB dynamic range (DR) with high performance 4th order PDM input
  • Channel summing mode, DR performance with high performance 4th order PDM input:
    • 120dB, 2-channel summing
    • 123dB, 4-channel summing
  • Programmable PDM clock output :
    • 768kHz to 6.144MHz
  • Programmable output sample rate (fS) :
    • 8kHz to 768kHz
  • Programmable channel settings:
    • Digital volume control: –100dB to 27dB
    • Gain calibration with 0.1dB resolution
    • Phase calibration with 163ns 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: 3.3V or 1.8V
  • I/O-supply operation: 3.3V or 1.8V
  • Power consumption for 1.8V supply:
    • 2.9mW/channel at 16kHz sample rate
    • 2.5mW/channel at 48kHz sample rate
  • 8-channel PDM microphones simultaneous conversion
  • PDM input to TDM or I2S output converter performance:
    • 127dB dynamic range (DR) with high performance 5th order PDM input
    • 117dB dynamic range (DR) with high performance 4th order PDM input
  • Channel summing mode, DR performance with high performance 4th order PDM input:
    • 120dB, 2-channel summing
    • 123dB, 4-channel summing
  • Programmable PDM clock output :
    • 768kHz to 6.144MHz
  • Programmable output sample rate (fS) :
    • 8kHz to 768kHz
  • Programmable channel settings:
    • Digital volume control: –100dB to 27dB
    • Gain calibration with 0.1dB resolution
    • Phase calibration with 163ns 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: 3.3V or 1.8V
  • I/O-supply operation: 3.3V or 1.8V
  • Power consumption for 1.8V supply:
    • 2.9mW/channel at 16kHz sample rate
    • 2.5mW/channel at 48kHz 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 programmable 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 768kHz. The device supports time-division multiplexing (TDM), I2S, or left-justified (LJ) audio formats, and can be controlled with either the I2C or SPI. 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 3.3V or 1.8V, 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 programmable 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 768kHz. The device supports time-division multiplexing (TDM), I2S, or left-justified (LJ) audio formats, and can be controlled with either the I2C or SPI. 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 3.3V or 1.8V, 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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* Data sheet PCMD3180 Octal-Channel, PDM Input to TDM or I2 S Output Converter datasheet (Rev. A) PDF | HTML 14 Jan 2026

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Evaluation board

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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 (...)

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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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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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SBAC292 — PCMD31x0 C Source Headers

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Evaluation software for ADC3140EVM-PDK, ADC5140EVM-PDK and ADC6140EVM-PDK
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