PCM2904
Overview
The PCM2904/2906 is Texas Instruments single-chip USB stereo audio codec with USB-compliant full-speed protocol controller and S/PDIF (PCM2906 only). The USB protocol controller works with no software code, but the USB descriptors can be modified in some areas (for example, vendor ID/product ID).
- 23 PCM2904: Without S/PDIF
- PCM2906: With S/PDIF
- On-Chip USB Interface: - With Full-Speed Transceivers - Fully Compliant With USB 1.1 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 - Pass-Band Ripple = ±0.05 dB - Stop-Band Attenuation = -65 dB - Single-Ended Voltage Input - Antialiasing Filter Included - Digital LCF Included
- Stereo DAC: - Analog Performance at VBUS = 5 V - THD+N = 0.005% - SNR = 96 dB - Dynamic Range = 93 dB - Oversampling Digital Filter (1) The descriptor can be modified by changing a mask. - Pass-Band Ripple = ±0.1 dB - Stop-Band Attenuation = -43 dB - Single-Ended Voltage Output - Analog LPF Included
- Multifunctions: - Human Interface Device (HID) Volume ± Control and Mute Control - Suspend Flag
