Datasheet

PCM2704, ,PCM2705
PCM2706,PCM2707
www.ti.com .......................................................................................................................................................SLES081F–JUNE2003–REVISEDJANUARY2009
TerminalFunctions(PCM2706PJT/PCM2707PJT)
TERMINAL
I/ODESCRIPTION
NAMENO.
AGNDL26—AnaloggroundforheadphoneamplifierofL-channel
AGNDR31—AnaloggroundforheadphoneamplifierofR-channel
CK14OClockoutputforexternalROM(PCM2706).Mustbeleftopen(PCM2707).
D+23I/OUSBdifferentialinput/outputplus
(1)
D–22I/OUSBdifferentialinput/outputminus
(1)
DGND20—Digitalground
DOUT17OS/PDIFoutput/I
2
S™dataoutput
DT15I/ODatainput/outputforexternalROM(PCM2706).Mustbeleftopenwithpullupresistor(PCM2707).
(1)
FSEL9IFunctionselect(LOW:I
2
SDATAoutput,HIGH:S/PDIFoutput)
(1)
FUNC05I/OHIDkeystateinput(nexttrack),activeHIGH(FSEL=1).I
2
SLRclockoutput(FSEL=0).
(2)
FUNC119I/OHIDkeystateinput(previoustrack),activeHIGH(FSEL=1).I
2
Sbitclockoutput(FSEL=0).
(2)
FUNC218I/OHIDkeystateinput(stop),activeHIGH(FSEL=1).I
2
Ssystemclockoutput(FSEL=0).
(2)
FUNC34IHIDkeystateinput(play/pause),activeHIGH(FSEL=1).I
2
Sdatainput(FSEL=0).
(2)
HID0/MS6IHIDkeystateinput(mute),activeHIGH(PCM2706).MSinput(PCM2707)
(2)
HID1/MC7IHIDkeystateinput(volumeup),activeHIGH(PCM2706).MCinput(PCM2707)
(2)
HID2/MD8IHIDkeystateinput(volumedown),activeHIGH(PCM2706).MDinput(PCM2707)
(2)
HOST3IHostdetectionduringself-poweredoperation(connecttoV
BUS
).Maxpowerselectduringbus-powered
operation.(LOW:100mA,HIGH:500mA).
(3)
PGND1—AnaloggroundforDAC,OSC,andPLL
PSEL16IPowersourceselect(LOW:self-power,HIGH:bus-power)
(1)
SSPND11OSuspendflag,activeLOW(LOW:suspend,HIGH:operational)
TEST10ITestpin.MustbesetHIGH
(1)
V
BUS
24—ConnecttoUSBpower(V
BUS
)forbus-poweredoperation.ConnecttoV
DD
forself-poweredoperation.
V
CCL
27—AnalogpowersupplyforheadphoneamplifierofL-channel
(4)
V
CCP
2—AnalogpowersupplyforDAC,OSC,andPLL
(4)
V
CCR
30—AnalogpowersupplyforheadphoneamplifierofR-channel
(4)
V
COM
32—CommonvoltageforDAC(V
CCP
/2).ConnectdecouplingcapacitortoPGND.
V
DD
21—Digitalpowersupply
(4)
V
OUT
L28ODACanalogoutputforL-channel
V
OUT
R29ODACanalogoutputforR-channel
XTI12ICrystaloscillatorinput
(1)
XTO13OCrystaloscillatoroutput
ZGND25—Groundforinternalregulator
(1)LV-TTLlevel
(2)LV-TTLlevelwithinternalpulldown
(3)LV-TTLlevel,5-Vtolerant
(4)ConnectdecouplingcapacitortoGND.Supply3.3Vforself-poweredapplications.
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ProductFolderLink(s):PCM2704PCM2705PCM2706PCM2707
PCM2704 and PCM2705
Not Recommended For New Designs