PCM2704CDB datasheet(29/40 Pages) TI1

tên linh kiện	PCM2704CDB

Giải thích chi tiết về linh kiện	Stereo Audio DAC with USB Interface, Single-Ended Headphone Output and S/PDIF Output

PDF	40 Pages

Scroll/Zoom	100%

nhà sản xuất	TI1 [Texas Instruments]

Trang chủ	http://www.ti.com

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29 / 40 page

D+ / D-

SSPND

OUT

Idle

Active

2.5 ms

5 ms

Suspend

Detach

1 ms

BUS

D+ / D

OUT

SOF

Audio Data

Last Audio Data

PCM2704C, PCM2705C

PCM2706C, PCM2707C

www.ti.com

SBFS036A – AUGUST 2011 – REVISED JULY 2012

Play, Stop, and Detach Sequence

When the host finishes or aborts playback, the PCM2704C/5C/6C/7C stop playing after the last audio data output

is complete. Figure 32 illustrates the play, stop, and detach sequence.

Figure 32. Play, Stop, and Detach Sequence

Suspend and Resume Sequence

The PCM2704C/5C/6C/7C enter a suspended state after the USB bus has been in a constant idle state for

approximately 5 ms. While the PCM2704C/5C/6C/7C are in this suspended state, the SSPND flag (pin 27 for the

PCM2704C/5C, pin 11 for the PCM2706C/7C) is asserted. The PCM2704C/5C/6C/7C wake up immediately

when detecting a non-idle state on the USB bus. Figure 33 shows the operating sequence for the suspend and

resume process.

Figure 33. Suspend and Resume

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Product Folder Link(s): PCM2704C PCM2705C PCM2706C PCM2707C

PCM2704CDB bảng dữ liệu(PDF) 29 Page - Texas Instruments