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PCM1821-Q1

ACTIVE

Automotive, stereo, 106-dB SNR, 192-kHz, low-power hardware-controlled audio ADC

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Data sheet

PCM1821-Q1

ACTIVE
Data sheet Order now

Product details

Number of ADC channels 2 Analog inputs 2 Digital audio interface I2S, TDM Control interface H/W Sampling rate (max) (kHz) 192 ADC SNR (typ) (dB) 106 Rating Automotive Analog outputs 0 Operating temperature range (°C) -40 to 125
Number of ADC channels 2 Analog inputs 2 Digital audio interface I2S, TDM Control interface H/W Sampling rate (max) (kHz) 192 ADC SNR (typ) (dB) 106 Rating Automotive Analog outputs 0 Operating temperature range (°C) -40 to 125
WQFN (RTE) 20 9 mm² 3 x 3
  • Stereo high-performance ADC:
    • 2-channel analog microphones or line-in
  • ADC line and microphone differential input performance:
    • PCM1820-Q1 dynamic range:
      • 123-dB, dynamic range enhancer enabled
      • 113-dB, dynamic range enhancer disabled
    • PCM1821-Q1 dynamic range: 106 dB
    • THD+N: –95 dB
  • ADC differential 2-VRMS full-scale input
  • ADC sample rate (fS) = 8 kHz to 192 kHz
  • Hardware pin control configurations
  • Linear-phase or low-latency filter selection
  • Flexible audio serial data interface:
    • Master or slave interface selection
    • 32-bits, 2-channel TDM
    • 32-bits, 2-channel I2S
  • Automatic power-down upon loss of audio clocks
  • Integrated high-performance audio PLL
  • Single-supply operation: 3.3 V
  • I/O-supply operation: 3.3 V or 1.8 V
  • Power consumption for 3.3-V AVDD supply:
    • 19.6 mW/channel at 16-kHz sample rate
    • 21.3 mW/channel at 48-kHz sample rate
  • Stereo high-performance ADC:
    • 2-channel analog microphones or line-in
  • ADC line and microphone differential input performance:
    • PCM1820-Q1 dynamic range:
      • 123-dB, dynamic range enhancer enabled
      • 113-dB, dynamic range enhancer disabled
    • PCM1821-Q1 dynamic range: 106 dB
    • THD+N: –95 dB
  • ADC differential 2-VRMS full-scale input
  • ADC sample rate (fS) = 8 kHz to 192 kHz
  • Hardware pin control configurations
  • Linear-phase or low-latency filter selection
  • Flexible audio serial data interface:
    • Master or slave interface selection
    • 32-bits, 2-channel TDM
    • 32-bits, 2-channel I2S
  • Automatic power-down upon loss of audio clocks
  • Integrated high-performance audio PLL
  • Single-supply operation: 3.3 V
  • I/O-supply operation: 3.3 V or 1.8 V
  • Power consumption for 3.3-V AVDD supply:
    • 19.6 mW/channel at 16-kHz sample rate
    • 21.3 mW/channel at 48-kHz sample rate

The PCM182(0/1)-Q1 is a high-performance, Burr-Brown™ audio analog-to-digital converter (ADC) that supports simultaneous sampling of up to two analog channels. The device supports differential line and microphone inputs with a 2-VRMS full-scale signal. The device integrates a phase-locked loop (PLL), a DC removal high-pass filter (HPF), and supports sample rates up to 192 kHz. The device supports time-division multiplexing (TDM) or I2S audio formats, selectable with the hardware pin level. Additionally, the PCM182(0/1)-Q1 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, make the device an excellent choice for cost-sensitive, space-constrained audio systems in far-field microphone recording applications.

The PCM182(0/1)-Q1 is specified from –40°C to +125°C, and is offered in a 20-pin WQFN package.

The PCM182(0/1)-Q1 is a high-performance, Burr-Brown™ audio analog-to-digital converter (ADC) that supports simultaneous sampling of up to two analog channels. The device supports differential line and microphone inputs with a 2-VRMS full-scale signal. The device integrates a phase-locked loop (PLL), a DC removal high-pass filter (HPF), and supports sample rates up to 192 kHz. The device supports time-division multiplexing (TDM) or I2S audio formats, selectable with the hardware pin level. Additionally, the PCM182(0/1)-Q1 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, make the device an excellent choice for cost-sensitive, space-constrained audio systems in far-field microphone recording applications.

The PCM182(0/1)-Q1 is specified from –40°C to +125°C, and is offered in a 20-pin WQFN package.
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Technical documentation

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Type Title Date
* Data sheet PCM182(0/1)-Q1 Stereo Channel, 32-Bit, 192-kHz, Burr-BrownTM Audio ADC datasheet (Rev. A) PDF | HTML 12 Jul 2022
Application note Working With Analog Inputs in the TLV320ADCX120 and PCMX120-Q1 Family PDF | HTML 17 Jul 2023
Certificate PCM1821Q1EVM EU RoHS Declaration of Conformity (DoC) 21 Apr 2022
User guide PCM182xEVM, PCM182xQ1EVM User's Guide (Rev. A) 29 Mar 2022

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Evaluation board

PCM1821Q1EVM — PCM1821-Q1 evaluation module for stereo, 192-kHz, hardware-controlled audio ADC with 106-dB SNR

The PCM1821Q1EVM evaluation module (EVM) allows the user to test the capabilities of the PCM1821-Q1 device, a stereo, hardware-controlled, high-performance audio analog-to-digital converter (ADC), which is intended for applications in voice-activated systems, professional microphones, audio (...)

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