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PCMD3180-Q1

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Automotive, eight-channel pulse-density-modulation input to TDM or I²S output converter

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Data sheet

PCMD3180-Q1

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 Automotive 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 Automotive Analog outputs 0 Operating temperature range (°C) -40 to 125
VQFN (RGE) 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
    • Controller or target 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
    • Controller or target 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-Q1 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 interface. Additionally, the PCMD3180-Q1 supports controller and target 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-Q1 is specified from –40°C to 125°C and is offered in a 24-pin WQFN package.

The PCMD3180-Q1 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 interface. Additionally, the PCMD3180-Q1 supports controller and target 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-Q1 is specified from –40°C to 125°C and is offered in a 24-pin WQFN package.
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* Data sheet PCMD3180-Q1 Octal-Channel, PDM Input to TDM or I2 S Output Converter datasheet (Rev. A) PDF | HTML 17 Jan 2024

Design & development

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