PCM2704C

具有线路输出和 S/PDIF 输出、总线供电/自供电的 98dB SNR 立体声全速 DAC（外部 ROM 接口）; • On-Chip USB Interface:\n - No Dedicated Device Driver Needed\n• Full-Speed Transceivers\n• Fully Compliant With USB 2.0 Specification \n - USB 1.1 Descriptors With USB AudioClass Support\n• Certified by USB-IF\n• Partially Programmable Descriptors\n• Adaptive Isochronous Transfer for Playback\n• Bus-Powered or Self-Powered Operation\n• Sampling Rates: 32 kHz, 44.1 kHz, and 48 kHz\n• On-Chip Clock Generator With Single 12-MHz Clock Source\n• Single Power Supply:\n - Bus-Powered: 5 V, Typical (VBUS)\n• Self-Powered: 3.3 V, Typical\n• 16-Bit Delta-Sigma Stereo DAC\n - Analog Performance at 5 V (Bus-Powered), 3.3 V (Self-Powered):\n - THD + N: 0.006% RL > 10 kΩ, Self- Powered\n• THD + N: 0.025% RL = 32 Ω\n• SNR = 98 dB\n• Dynamic Range: 98 dB\n• PO = 12 mW, RL = 32 Ω\n• Oversampling Digital Filter\n - Passband Ripple = ±0.04 dB\n• Stop-Band Attenuation = –50 dB\n• Single-Ended Voltage Output\n• Analog LPF Included\n• Multiple Functions: \n - Up to Eight Human Interface Device (HID) Interfaces (Model and Setting Dependent)\n• Suspend Flag\n• S/PDIF Out With SCMS\n• External ROM Interface (PCM2704C/6C)\n• Serial Programming Interface (PCM2705C/7C)\n• I2S Interface (Selectable on PCM2706C/7C);

The PCM270xC are TI’s single-chip USB stereo audio digital-to-analog converters (DACs) with USB 2.0 compliant full-speed protocol controller and S/PDIF. The USB-protocol controller works with no software code, but USB descriptors can be modified in some areas (for example, vendor ID/product ID) through the use of an external ROM (PCM2704C and PCM2706C) or serial peripheral interface (SPI) (PCM2705C and PCM2707C). The PCM270xC also employ SpAct architecture, TI's unique system that recovers the audio clock from USB packet data. On-chip analog phase-locked loops (PLLs) with SpAct enable playback with low clock jitter.\n \n

PCM2704C

Stereo Audio DAC with USB Interface Single-Ended Headphone Output and S/PDIF Output

PCM2704C

Stereo Audio DAC with USB Interface, Single-Ended Headphone Output and S/PDIF Output

PCM2704C_14

Stereo Audio DAC with USB Interface Single-Ended Headphone Output and S/PDIF Output

PCM2704C_15

Stereo Audio DAC

PCM2704C_15

PCM270xC Stereo Audio DAC With USB Interface, Single-Ended Headphone Output andS/PDIF Output

PCM2704CDB

Stereo Audio DAC with USB Interface, Single-Ended Headphone Output and S/PDIF Output

PCM2704CDB

Stereo Audio DAC

PCM2704CDBR

Stereo Audio DAC with USB Interface, Single-Ended Headphone Output and S/PDIF Output

PCM2704CDBR

Stereo Audio DAC