PCM2707中文资料具有 USB 接口、耳机输出和 S/PDIF 输出的立体声音频 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:·No Need of Dedicated Device Driver
· With Full-Speed Transceivers
· Fully Compliant With USB 1.1 Specification
· Certified by USB-IF
· Partially Programmable Descriptors
· Adaptive Isochronous Transfer for Playback
· Bus-Powered or Self-Powered Operation

·Sampling Rate: 32, 44.1, 48 kHz
·On-Chip Clock Generator With Single 12-MHz Clock Source
·Single Power Supply: · Bus-Powered: 5 V, Typical (VBUS)
· Self-Powered: 3.3 V, Typical

·16-Bit Delta-Sigma Stereo DAC · Analog Performance at 5 V (Bus-Powered),3.3 V (Self-Powered): THD+N: 0.006% RL > 10 kΩ, Self-Powered THD+N: 0.025% RL = 32 Ω SNR = 98 dB Dynamic Range: 98 dB PO = 12 mW, RL = 32 Ω
· Oversampling Digital Filter Pass-Band Ripple = ±0.04 dBStop-Band Attenuation = -50 dB
· Single-Ended Voltage Output
· Analog LPF Included

·Multiple Functions:· Up to Eight Human Interface Device (HID) Interfaces (Depending on Model and Settings)
· Suspend Flag
· S/PDIF Out With SCMS
· External ROM Interface (PCM2704/6)
· Serial Programming Interface (PCM2705/7)
· I2S Interface (Selectable on PCM2706/7)

·Package: