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General Purpose Audio Codec 1ADC / 1DAC Ch 28-Pin SSOP T/R

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PCM2902CDBR General Description

The PCM2900C/2902C are Texas Instruments' single-chip, USB, stereo audio codecs with a USB-compliant full-speed protocol controller and S/PDIF (PCM2902C only). The USB protocol controller requires no software code. The PCM2900C/2902C employ 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.

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Key Features

  • PCM2900C: Without S/PDIF
  • PCM2902C: 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
    • USB Adaptive Mode for Playback
    • USB Asynchronous Mode for Record
    • Bus Powered
  • 16-Bit Delta-Sigma ADC and DAC
  • Sampling Rate:
    • DAC: 32 kHz, 44.1 kHz, 48 kHz
    • ADC: 8 kHz, 11.025 kHz, 16 kHz, 22.05 kHz, 32 kHz, 44.1 kHz, 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
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Category Integrated Circuits (ICs)InterfaceCODECS Mfr Texas Instruments
Series - Package Tape & Reel (TR)Cut Tape (CT)Digi-Reel®
Product Status Active Type Stereo Audio
Data Interface USB Resolution (Bits) 16 b
Number of ADCs / DACs 2 / 2 Sigma Delta Yes
S/N Ratio, ADCs / DACs (db) Typ 89 / 96 Dynamic Range, ADCs / DACs (db) Typ 89 / 93
Voltage - Supply, Analog 3.1V ~ 3.5V Voltage - Supply, Digital 3.1V ~ 3.5V
Operating Temperature -25°C ~ 85°C Mounting Type Surface Mount
Package / Case 28-SSOP (0.209", 5.30mm Width) Supplier Device Package 28-SSOP
Base Product Number PCM2902

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