Datasheet

www.ti.com
Play,Stop,andDetachSequence
RecordSequence
SuspendandResumeSequence
D+/D–
V
L
OUT
V R
OUT
AudioDataAudioData
Last AudioData
Detach
SOF
SOF SOF SOF SOF
1ms
V (Pin3)
BUS
T0056-02
D+/D–
V
L
IN
V R
IN
1ms
SET_INTERFACE
AudioData
IN
Token
AudioData
IN
Token
AudioData
IN
Token
SOF SOF SOF SOF SOF
T0259-01
PCM2900
PCM2902
SLES035E–MARCH2007–REVISEDMARCH2008
Whenthehostfinishesorabortstheplayback,thePCM2900/2902stopsplayingafterthelastaudiodatahas
played.
ThePCM2900/2902startstheaudiocaptureintotheinternalmemoryafterreceivingtheSET_INTERFACE
command.
ThePCM2900/2902entersthesuspendstateafteritseesaconstantidlestateontheUSBbus,approximately
5ms.WhilethePCM2900/2902entersthesuspendstate,SSPNDflag(pin28)isasserted.ThePCM2900/2902
wakesupimmediatelywhendetectingthenon-idlestateontheUSBbus.
Figure33.Play,Stop,andDetach
Figure34.RecordSequence
Copyright©2007–2008,TexasInstrumentsIncorporatedSubmitDocumentationFeedback25
ProductFolderLink(s):PCM2900PCM2902
Not Recommended for New Designs