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PCM1821-Q1 ACTIVE Automotive, stereo, 106-dB SNR, 192-kHz, low-power hardware-controlled audio ADC Higher SNR performance, smaller package, lower power consumption

Product details

Number of ADC channels 2 Analog inputs 2 Digital audio interface I2S, L Control interface H/W Sampling rate (max) (kHz) 96 ADC SNR (typ) (dB) 99 Rating Automotive Analog outputs 0 Operating temperature range (°C) -40 to 125
Number of ADC channels 2 Analog inputs 2 Digital audio interface I2S, L Control interface H/W Sampling rate (max) (kHz) 96 ADC SNR (typ) (dB) 99 Rating Automotive Analog outputs 0 Operating temperature range (°C) -40 to 125
TSSOP (PW) 14 32 mm² 5 x 6.4
  • Qualified for Automotive Applications
  • 24-Bit Delta-Sigma Stereo A/D Converter
  • Single-Ended Voltage Input: 3 Vp-p
  • High Performance:
    • THD + N: –93 dB (Typical)
    • SNR: 99 dB (Typical)
    • Dynamic Range: 99 dB (Typical)
  • Oversampling Decimation Filter:
    • Oversampling Frequency: ×64
    • Pass-Band Ripple: ±0.05 dB
    • Stop-Band Attenuation: –65 dB
    • On-Chip High-Pass Filter: 0.91 Hz (48 kHz)
  • Flexible PCM Audio Interface
    • Master/Slave Mode Selectable
    • Data Formats: 24-Bit I2S, 24-Bit Left-Justified
  • Power Down and Reset by Halting System Clock
  • Analog Antialias LPF Included
  • Sampling Rate: 8 kHz–96 kHz
  • System Clock: 256 fS, 384 fS, 512 fS
  • Dual Power Supplies:
    • 5-V for Analog
    • 3.3-V for Digital
  • Package: 14-Pin TSSOP

  • Qualified for Automotive Applications
  • 24-Bit Delta-Sigma Stereo A/D Converter
  • Single-Ended Voltage Input: 3 Vp-p
  • High Performance:
    • THD + N: –93 dB (Typical)
    • SNR: 99 dB (Typical)
    • Dynamic Range: 99 dB (Typical)
  • Oversampling Decimation Filter:
    • Oversampling Frequency: ×64
    • Pass-Band Ripple: ±0.05 dB
    • Stop-Band Attenuation: –65 dB
    • On-Chip High-Pass Filter: 0.91 Hz (48 kHz)
  • Flexible PCM Audio Interface
    • Master/Slave Mode Selectable
    • Data Formats: 24-Bit I2S, 24-Bit Left-Justified
  • Power Down and Reset by Halting System Clock
  • Analog Antialias LPF Included
  • Sampling Rate: 8 kHz–96 kHz
  • System Clock: 256 fS, 384 fS, 512 fS
  • Dual Power Supplies:
    • 5-V for Analog
    • 3.3-V for Digital
  • Package: 14-Pin TSSOP

The PCM1808-Q1 is high-performance, low-cost, single-chip, stereo analog-to-digital converter with single-ended analog voltage input. The PCM1808-Q1 uses a delta-sigma modulator with 64-times oversampling and includes a digital decimation filter and high-pass filter that removes the dc component of the input signal. For various applications, the PCM1808-Q1 supports master and slave mode and two data formats in serial audio interface.

The PCM1808-Q1 supports the power-down and reset function by means of halting the system clock.

The PCM1808-Q1 is suitable for wide variety of cost-sensitive consumer applications where good performance and operation with a 5-V analog supply and 3.3-V digital supply is required. The PCM1808-Q1 is fabricated using a highly advanced CMOS process and is available in a small, 14-pin TSSOP package.

The PCM1808-Q1 is high-performance, low-cost, single-chip, stereo analog-to-digital converter with single-ended analog voltage input. The PCM1808-Q1 uses a delta-sigma modulator with 64-times oversampling and includes a digital decimation filter and high-pass filter that removes the dc component of the input signal. For various applications, the PCM1808-Q1 supports master and slave mode and two data formats in serial audio interface.

The PCM1808-Q1 supports the power-down and reset function by means of halting the system clock.

The PCM1808-Q1 is suitable for wide variety of cost-sensitive consumer applications where good performance and operation with a 5-V analog supply and 3.3-V digital supply is required. The PCM1808-Q1 is fabricated using a highly advanced CMOS process and is available in a small, 14-pin TSSOP package.

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PCM1808 ACTIVE 24-bit, 99-dB SNR, 96-kHz stereo ADC with single-ended inputs Catalog version without AEC-Q100 qualification

Technical documentation

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Type Title Date
* Data sheet PCM1808-Q1 Single-Ended, Analog-Input 24-Bit, 96-kHz Stereo ADC datasheet (Rev. A) 31 Jul 2012
EVM User's guide PCM1808 Evaluation Module User's Guide 27 Jun 2020

Design & development

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Evaluation board

PCM1808EVM — PCM1808 24-bit, 99-dB SNR, 96-kHz stereo ADC with single-ended inputs evaluation module

The PCM1808 evaluation module (EVM) is designed to demonstrate the performance and functionality of the PCM1808 product. PCM1808 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

PCM1808 IBIS Model

SLEM005.ZIP (29 KB) - IBIS Model
Gerber file

PCM1808EVM Gerber Files

SLEC031.ZIP (106 KB)
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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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TSSOP (PW) 14 Ultra Librarian

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