PCM2704,PCM2705

PCM2706,PCM2707

SLES081A − JUNE 2003 – REVISED MAY 2004

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26

Play, Stop, and Detach Sequence

When host finishes or aborts the playback, the PCM2704/5/6/7 stops the playing after last audio data has played.

Suspend and Resume Sequence

The PCM2704/5/6/7 enters the suspend state after the USB bus has been in a constant idle state for approximately

5 ms. While the PCM2704/5/6/7 is in the suspend state, SSPND flag (pin 27 for PCM2704/5, pin 11 for PCM2706/7)

is asserted. The PCM2704/5/6/7 wakes up immediately when detecting the non-idle state on the USB bus.

VBUS

VOUTL

VOUTR

Audio Data

Audio Data

Last Audio Data

Detach

SOF

SOF

SOF

SOF

SOF

1 ms

D+/D–

Figure 29. Play, Stop, and Detach

5 ms

D+/D−

SSPND

Idle

Suspend

VOUTL

VOUTR

Active

2.5 ms

Active

Figure 30. Suspend and Resume