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

SBFS038A – JUNE 2012 – REVISED SEPTEMBER 2015

www.ti.com

Figure 37. Poweron Under Attach

9.5.3.2 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 38.

Figure 38. Play, Stop, and Detach Sequence

22

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