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Stereo-channel, 32-bit, 192-kHz, audio analog-to-digital converter (ADC) with 106-dB SNR

Inventory: 500  
Limit:  50

Quality information

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Quality, reliability
& packaging information

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  • MSL rating/Peak reflow
  • MTBF/FIT estimates
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  • Ongoing reliability monitoring
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Packaging information

Package | Pins Package qty | Carrier: Operating temperature range (°C)
WQFN (RTE) | 20 3,000 | LARGE T&R
-40 to 125
Package | Pins WQFN (RTE) | 20
Package qty | Carrier: 3,000 | LARGE T&R
Operating temperature range (°C) -40 to 125
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Features for the PCM1821

  • Stereo high-performance ADC:
    • 2-channel analog microphones or line-in
  • ADC line and microphone differential input performance:
    • PCM1820 dynamic range:
      • 123-dB, dynamic range enhancer enabled
      • 113-dB, dynamic range enhancer disabled
    • PCM1821 dynamic range: 106 dB
    • THD+N: –98 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:
    • TBD mW/channel at 16-kHz sample rate
    • TBD mW/channel at 48-kHz sample rate

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Description for the PCM1821

The PCM182x 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 PCM182x 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 PCM182x is specified from –40°C to +125°C, and is offered in a 20-pin WQFN package.


Qty Price (USD)
1-99 2.828
100-249 2.478
250-999 1.737
1,000+ 1.4