Stereo USB CODEC with line out and S/PDIF, Bus-powered


Product details


ADC channels 2 DAC channels 2 Analog inputs 2 Sampling rate (Max) (kHz) 48 Control interface HID Features S/PDIF I/O, 500mA Max Power Configuration Supply voltage(s) (V) 5 Approx. price (US$) 4.67 | 1ku Analog outputs 2 open-in-new Find other Audio USB converters

Package | Pins | Size

SSOP (DB) 28 54 mm² 10.5 x 5.3 open-in-new Find other Audio USB converters


  • On-Chip USB Interface:
    • With Full-Speed Transceivers
    • Fully Compliant with USB 2.0 Specification
    • Certified by USB-IF
    • USB Adaptive Mode for Playback
    • USB Asynchronous Mode for Record
    • Bus Powered
  • 16-Bit Delta-Sigma ADC and DAC
  • Sampling Rate:
    • DAC: 32, 44.1, 48 kHz
    • ADC: 8, 11.025, 16, 22.05, 32, 44.1, 48 kHz
  • On-Chip Clock Generator with Single 12-MHz Clock Source
  • S/PDIF Input/Output
  • Single Power Supply:
    • 5 V Typical (VBUS)
  • Stereo ADC:
    • Analog Performance at VBUS = 5 V:
      • THD+N = 0.01%
      • SNR = 89 dB
      • Dynamic Range = 89 dB
    • Decimation Digital Filter:
      • Passband Ripple = ±0.05 dB
      • Stop-Band Attenuation = –65 dB
    • Single-Ended Voltage Input
    • Antialiasing Filter Included
    • Digital HPF Included
  • Stereo DAC:
    • Analog Performance at VBUS = 5 V:
      • THD+N = 0.005%
      • SNR = 96 dB
      • Dynamic Range = 93 dB
    • Oversampling Digital Filter:
      • Passband Ripple = ±0.1 dB
      • Stop-Band Attenuation = –43 dB
    • Single-Ended Voltage Output
    • Analog LPF Included
  • Multifunctions:
    • Human Interface Device (HID) Function:
      • Volume and Mute Controls
    • Suspend Flag Function
  • 28-Pin SSOP Package
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The PCM2906C is Texas Instruments’ single-chip, USB, stereo audio codec with a USB-compliant full-speed protocol controller and S/PDIF. The USB protocol controller requires no software code. The PCM2906C employs SpAct™ architecture, TI’s unique system that recovers the audio clock from USB packet data. On-chip analog PLLs with SpAct enable playback and record with low clock jitter, as well as independent playback and record sampling rates.

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Technical documentation

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Type Title Date
* Datasheet Stereo Audio Codec with USB Interface, Single-Ended Analog In/Out & S/PDIF datasheet Nov. 18, 2011
User guides PCM2900C/02C/PCM2906CEVM-U User Guide Sep. 18, 2011
Application notes Key Differences Between the PCM290x and PCM290xC Sep. 14, 2011
Application notes Dyamic Performance Testing of Digital Audio D/A Converters Oct. 02, 2000

Design & development

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Hardware development

document-generic User guide
The PCM2906CEVM-U is an evaluation board for Texas Instruments' newly developed USB interface codec. The PCM2906CEVM-U includes a PCM2906C device, a bus-powered (500 mA) USB codec with an S/PDIF interface. The evaluation board also includes operational amplifiers for line input/output buffers, a (...)
  • Fully compliant with USB2.0 specification
  • Full-speed transceivers
  • USB adaptive mode for playback
  • USB asynchronous mode for record
  • Bus-powered
  • Design tools & simulation

    SBFM016.ZIP (31 KB) - IBIS Model
    GERBER FILES Download
    SBFC036.ZIP (3185 KB)

    CAD/CAE symbols

    Package Pins Download
    SSOP (DB) 28 View options

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