PCM2705中文资料具有线性输出和 S/PDIF 输出、总线供电/自加电的 98dB SNR 立体声 USB2.0 FS DAC数据手册TI规格书

描述 Description

The PCM2704/5/6/7 is TI's single-chip USB stereo audio DAC with USB-compliant full-speed protocol controller and S/PDIF. The USB-protocolcontroller works with no software code, but USB descriptors can be modified in some parts (for example, vendor ID/product ID) through the use of an external ROM (PCM2704/6), SPI (PCM2705/7), or on request. The modification of the USB descriptor through external ROM or SPI must comply with USB-IF guidelines, and the vendor ID must be your own ID as assigned by the USB-IF. The descriptor also can be modified by changing a mask; contact your representative for details. The PCM2704/5/6/7 employsSpAct architecture, TI's unique system that recovers the audio clock from USB packet data. On-chip analog PLLs with SpAct enable playback with low clock jitter.

特性 Features

• On-Chip USB Interface:
• With Full-Speed Transceivers
• Certified by USB-IF
• Adaptive Isochronous Transfer for Playback
• Sampling Rate: 32, 44.1, 48 kHz
• Single Power Supply:
• Self-Powered: 3.3 V, Typical
• 16-Bit Delta-Sigma Stereo DAC
• Oversampling Digital Filter Pass-Band Ripple = ±0.04 dBStop-Band Attenuation = -50 dB
• Analog LPF Included
• Multiple Functions:
• Suspend Flag
• External ROM Interface (PCM2704/6)
• I2S Interface (Selectable on PCM2706/7)
• Package: