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PCM1841-Q1

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Automotive, quad-channel 32-bit 192-kHz audio analog-to-digital converter (ADC)

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Data sheet

PCM1841-Q1

ACTIVE
Data sheet Order now

Product details

Number of ADC channels 4 Sampling rate (max) (kHz) 192 Analog inputs 4 Control interface H/W Digital audio interface I2S, TDM THD+N (dB) -98 ADC SNR (typ) (dB) 122 Rating Automotive Operating temperature range (°C) -40 to 125 Analog outputs 0
Number of ADC channels 4 Sampling rate (max) (kHz) 192 Analog inputs 4 Control interface H/W Digital audio interface I2S, TDM THD+N (dB) -98 ADC SNR (typ) (dB) 122 Rating Automotive Operating temperature range (°C) -40 to 125 Analog outputs 0
VQFN (RGE) 24 16 mm² 4 x 4
  • Multichannel high-performance ADC:
    • 4-channel analog microphones or line-in
  • ADC line and microphone differential input performance:
    • Dynamic range:
      • 123dB, dynamic range enhancer enabled
      • 113dB, dynamic range enhancer disabled
    • THD+N: –98dB
  • ADC differential 2VRMS full-scale input
  • ADC sample rate (fS) = 8kHz to 192kHz
  • Hardware pin control configurations
  • Linear-phase or low-latency filter selection
  • Flexible audio serial data interface:
    • Controller or target interface selection
    • 32-bits, 4-channel TDM
    • 32-bits, 2-channel TDM
    • 32-bits, 2-channel I2S
    • 32-bits, 2-channel left-justified (LJ)
  • Automatic power-down upon loss of audio clocks
  • Integrated high-performance audio PLL
  • Low-noise MICBIAS 2.75V output
  • Single-supply operation: 3.3V
  • I/O-supply operation: 3.3V or 1.8V
  • Power consumption for 3.3V AVDD supply:
    • 17.0 mW/channel at 16kHz sample rate
    • 18.4 mW/channel at 48kHz sample rate
  • Multichannel high-performance ADC:
    • 4-channel analog microphones or line-in
  • ADC line and microphone differential input performance:
    • Dynamic range:
      • 123dB, dynamic range enhancer enabled
      • 113dB, dynamic range enhancer disabled
    • THD+N: –98dB
  • ADC differential 2VRMS full-scale input
  • ADC sample rate (fS) = 8kHz to 192kHz
  • Hardware pin control configurations
  • Linear-phase or low-latency filter selection
  • Flexible audio serial data interface:
    • Controller or target interface selection
    • 32-bits, 4-channel TDM
    • 32-bits, 2-channel TDM
    • 32-bits, 2-channel I2S
    • 32-bits, 2-channel left-justified (LJ)
  • Automatic power-down upon loss of audio clocks
  • Integrated high-performance audio PLL
  • Low-noise MICBIAS 2.75V output
  • Single-supply operation: 3.3V
  • I/O-supply operation: 3.3V or 1.8V
  • Power consumption for 3.3V AVDD supply:
    • 17.0 mW/channel at 16kHz sample rate
    • 18.4 mW/channel at 48kHz sample rate

The PCM1841-Q1 is a high-performance, Burr-Brown™ audio analog-to-digital converter (ADC) that supports simultaneous sampling of up to four analog channels. The device supports differential line and microphone inputs with a 2VRMS full-scale signal. The device integrates microphone bias voltage, a phase-locked loop (PLL), a DC removal high-pass filter (HPF), and supports sample rates up to 192kHz. The device supports time-division multiplexing (TDM), I2S, or left-justified (LJ) audio formats, selectable with the hardware pin level. Additionally, the PCM1841-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, make the device an excellent choice for cost-sensitive, space-constrained audio systems in far-field microphone recording applications.

The PCM1841-Q1 is specified from –40°C to +125°C and is offered in a 24-pin VQFN package.

The PCM1841-Q1 is a high-performance, Burr-Brown™ audio analog-to-digital converter (ADC) that supports simultaneous sampling of up to four analog channels. The device supports differential line and microphone inputs with a 2VRMS full-scale signal. The device integrates microphone bias voltage, a phase-locked loop (PLL), a DC removal high-pass filter (HPF), and supports sample rates up to 192kHz. The device supports time-division multiplexing (TDM), I2S, or left-justified (LJ) audio formats, selectable with the hardware pin level. Additionally, the PCM1841-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, make the device an excellent choice for cost-sensitive, space-constrained audio systems in far-field microphone recording applications.

The PCM1841-Q1 is specified from –40°C to +125°C and is offered in a 24-pin VQFN package.
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* Data sheet PCM1841-Q1 Quad Channel, 32-Bit, 192kHz, Burr-BrownTM Audio ADC datasheet PDF | HTML 16 May 2024

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