Audio Codec 1ADC / 1DAC 16-Bit 28-Pin SSOP T/R

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.

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 (V_BUS)

Stereo ADC:

• Analog Performance at V_BUS = 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 V_BUS = 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