The PCM2900C/2902C are Texas Instruments' single-chip, USB, stereo audio codecs with a USB-compliant full-speed protocol controller and S/PDIF (PCM2902CDB 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.
Feature
- 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
- Analog Performance at VBUS = 5 V:
- 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
- Analog Performance at VBUS = 5 V:
- Multifunctions:
- Human Interface Device (HID) Function:
- Volume and Mute Controls
- Suspend Flag Function
- Human Interface Device (HID) Function:
- 28-Pin SSOP Package
