D+/D–

Audio Data

Audio Data

Last Audio Data

Detach

SOF

SOF

SOF

SOF

SOF

1 ms

SEL1 (Pin 9)

V

L

V

R

OUT

OUT

5 V = V

(Typ)

BUS

D+/D–

SEL1 (Pin 9)

2.5 V (Typ)

0 V

Internal Reset

Ready for Setup

SOF

Ready for Playback

Bus Reset

Set Configuration

SOF

SOF

BPZ

Bus Idle

3.3 V (Typ)

SSPND

700

s

m

Device Setup

1 ms

5 V = V

(Typ)

BUS

V

(Pin 27)

DD

V

L

V

R

OUT

OUT

First Audio Data

Second Audio Data

PCM2903C

SBFS038 – JUNE 2012

www.ti.com

Figure 36. Power-On Under Attach

Play, Stop, and Detach Sequence

When the host finishes or aborts the playback, the PCM2903C stops playing after the last audio data have

played, as shown in Figure 37.

Figure 37. Play, Stop, and Detach Sequence

24

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Product Folder Link(s): PCM2903C