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PCM1821 ACTIVE Stereo-channel, 32-bit, 192-kHz, audio analog-to-digital converter (ADC) with 106-dB SNR 3-dB SNR improvement in smaller QFN package with power savings
PCM1822 ACTIVE Stereo, 117-dB SNR, 192-kHz, low-power, hardware-controlled, audio ADC Higher dynamic range in a QFN package

Product details

Number of ADC channels 2 Analog inputs 2 Digital audio interface I2S, L, R Control interface H/W Sampling rate (max) (kHz) 96 ADC SNR (typ) (dB) 103 Rating Catalog Analog outputs 0 Operating temperature range (°C) -40 to 85
Number of ADC channels 2 Analog inputs 2 Digital audio interface I2S, L, R Control interface H/W Sampling rate (max) (kHz) 96 ADC SNR (typ) (dB) 103 Rating Catalog Analog outputs 0 Operating temperature range (°C) -40 to 85
SSOP (DB) 20 56.16 mm² 7.2 x 7.8
  • 24-Bit Delta-Sigma Stereo A/D Converter
  • Single-Ended Voltage Input: 3 Vp-p
  • Oversampling Decimation Filter:
    • Oversampling Frequency: ×64, ×128
    • Pass-Band Ripple: ±0.05 dB
    • Stop-Band Attenuation: –65 dB
    • On-Chip High-Pass Filter: 0.84 Hz (44.1 kHz)
  • High-Performance:
    • THD+N: –95 dB (Typically)
    • SNR: 103 dB (Typically)
    • Dynamic Range: 103 dB (Typically)
  • PCM Audio Interface:
    • Master or Slave Mode Selectable
    • Data Formats:
      • 24-Bit Left-Justified
      • 24-Bit I2S
      • 20-, 24-Bit Right-Justified
  • Sampling Rate: 16 kHz to 96 kHz
  • System Clock: 256 fS, 384 fS, 512 fS, 768 fS
  • Dual Power Supplies: 5 V for Analog, 3.3 V for Digital
  • Package: 20-Pin SSOP
  • 24-Bit Delta-Sigma Stereo A/D Converter
  • Single-Ended Voltage Input: 3 Vp-p
  • Oversampling Decimation Filter:
    • Oversampling Frequency: ×64, ×128
    • Pass-Band Ripple: ±0.05 dB
    • Stop-Band Attenuation: –65 dB
    • On-Chip High-Pass Filter: 0.84 Hz (44.1 kHz)
  • High-Performance:
    • THD+N: –95 dB (Typically)
    • SNR: 103 dB (Typically)
    • Dynamic Range: 103 dB (Typically)
  • PCM Audio Interface:
    • Master or Slave Mode Selectable
    • Data Formats:
      • 24-Bit Left-Justified
      • 24-Bit I2S
      • 20-, 24-Bit Right-Justified
  • Sampling Rate: 16 kHz to 96 kHz
  • System Clock: 256 fS, 384 fS, 512 fS, 768 fS
  • Dual Power Supplies: 5 V for Analog, 3.3 V for Digital
  • Package: 20-Pin SSOP

The PCM1803A device is high-performance, low-cost, single-chip stereo analog-to-digital converter with single-ended analog voltage input. The PCM1803A uses a delta-sigma modulator with 64- and 128-times oversampling, and includes a digital decimation filter and high-pass filter, which removes the DC component of the input signal. For various applications, the PCM1803A supports master and slave modes and four data formats in serial interface. The PCM1803A is suitable for a wide variety of cost-sensitive consumer applications where good performance and operation from a 5-V analog supply and 3.3-V digital supply are required. The PCM1803A is fabricated using a highly-advanced CMOS process and is available in a small 20-pin SSOP package.

The PCM1803A device is high-performance, low-cost, single-chip stereo analog-to-digital converter with single-ended analog voltage input. The PCM1803A uses a delta-sigma modulator with 64- and 128-times oversampling, and includes a digital decimation filter and high-pass filter, which removes the DC component of the input signal. For various applications, the PCM1803A supports master and slave modes and four data formats in serial interface. The PCM1803A is suitable for a wide variety of cost-sensitive consumer applications where good performance and operation from a 5-V analog supply and 3.3-V digital supply are required. The PCM1803A is fabricated using a highly-advanced CMOS process and is available in a small 20-pin SSOP package.

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Technical documentation

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* Data sheet PCM1803A Single-Ended, Analog-Input 24-Bit, 96-kHz Stereo A/D Converter datasheet (Rev. B) PDF | HTML 28 Jul 2016

Design & development

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Evaluation board

PCM1803AEVM — PCM1803A evaluation module for single-ended analog-input 24-bit, 96-kHz stereo ADC

The PCM1803AEVM is an evaluation module (EVM) designed to demonstrate the performance and functionality of the PCM1803A device. The PCM1803A is a high-performance, low-cost, single-chip, stereo analog-to-digital converter (ADC) with single-ended analog voltage input.

User guide: PDF
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Simulation model

PCM1803A IBIS Model

SLEM007.ZIP (28 KB) - IBIS Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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SSOP (DB) 20 View options

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