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SLES081A − JUNE 2003 – REVISED MAY 2004
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.
V
BUS
Audio Data
Audio Data
Last Audio Data
SOF
D+/D–
SOF
SOF
SOF
SOF
V
L
R
OUT
V
OUT
Detach
1 ms
Figure 29. Play, Stop, and Detach
Idle
D+/D−
SSPND
5 ms
Suspend
V
L
R
OUT
V
OUT
Active
Active
2.5 ms
Figure 30. Suspend and Resume
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