PCM2900B Stereo USB1.1 CODEC with line-out (HID Interface) | TI.com

PCM2900B (NRND)

Stereo USB1.1 CODEC with line-out (HID Interface)

 

Not Recommended for New Designs (NRND)

Replaced By PCM2900C – The device is an EXACT EQUIVALENT in functionality and parametrics to the compared device. Microsoft(R) WIndows(R) Logo Kit (WLK) v1.5 certified - fully compatible with Windows 7

TI does not recommend using this part in a new design. This product continues to be in production to support existing customers.

Description

The PCM2900B/2902B is Texas Instruments' single-chip, USB, stereo audio codec with a USB-compliant full-speed protocol controller and S/PDIF (PCM2902B only). The USB protocol controller requires no software code, but the USB descriptors can be modified in some areas (for example, vendor ID and/or product ID). The PCM2900B/2902B employs SpAct architecture, TI's unique system that recovers the audio clock from USB packet data. On-chip analog PLLs with SpAct architecture enable playback and record with low clock jitter as well as independent playback and record sampling rates.

Features

  • PCM2900B: Without S/PDIF
  • PCM2902B: With S/PDIF
  • On-Chip USB Interface:
    • With Full-Speed Transceivers
    • Fully Compliant with USB 2.0 Specification
    • Certified by USB-IF
    • Partially Programmable Descriptors(1)
    • 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
  • 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
  • APPLICATIONS
    • USB Audio Speaker
    • USB Headset
    • USB Monitor
    • USB Audio Interface Box

(1)The descriptor can be modified by changing a mask.

SpAct is a trademark of Texas Instruments.
System Two, Audio Precision are trademarks of Audio Precision, Inc.

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