Datasheet

PCM2704, ,PCM2705
PCM2706,PCM2707
SLES081F–JUNE2003–REVISEDJANUARY2009....................................................................................................................................................... www.ti.com
TerminalFunctions(PCM2704DB/PCM2705DB)
TERMINAL
I/ODESCRIPTION
NAMENO.
AGNDL12—AnaloggroundforheadphoneamplifierofL-channel
AGNDR17—AnaloggroundforheadphoneamplifierofR-channel
CK2OClockoutputforexternalROM(PCM2704).Mustbeleftopen(PCM2705).
D+9I/OUSBdifferentialinput/outputplus
(1)
D–8I/OUSBdifferentialinput/outputminus
(1)
DGND6—Digitalground
DOUT5OS/PDIFoutput
DT3I/ODatainput/outputforexternalROM(PCM2704).Mustbeleftopenwithpullupresistor(PCM2705).
(1)
HID0/MS22IHIDkeystateinput(mute),activeHIGH(PCM2704).MSinput(PCM2705).
(2)
HID1/MC23IHIDkeystateinput(volumeup),activeHIGH(PCM2704).MCinput(PCM2705).
(2)
HID2/MD24IHIDkeystateinput(volumedown),activeHIGH(PCM2704).MDinput(PCM2705).
(2)
HOST21IHostdetectionduringself-poweredoperation(connecttoV
BUS
).Maxpowerselectduringbus-powered
operation(LOW:100mA,HIGH:500mA).
(3)
PGND19—AnaloggroundforDAC,OSC,andPLL
PSEL4IPowersourceselect(LOW:self-power,HIGH:bus-power)
(1)
SSPND 27OSuspendflag,activeLOW(LOW:suspend,HIGH:operational)
TEST026ITestpin.MustbesetHIGH
(1)
TEST125ITestpin.MustbesetHIGH
(1)
V
BUS
10—ConnecttoUSBpower(V
BUS
)forbus-poweredoperation.ConnecttoV
DD
forself-poweredoperation.
V
CCL
13—AnalogpowersupplyforheadphoneamplifierofL-channel
(4)
V
CCP
20—AnalogpowersupplyforDAC,OSC,andPLL
(4)
V
CCR
16—AnalogpowersupplyforheadphoneamplifierofR-channel
(4)
V
COM
18—CommonvoltageforDAC(V
CCP
/2).ConnectdecouplingcapacitortoPGND.
V
DD
7—Digitalpowersupply
(4)
V
OUT
L14ODACanalogoutputforL-channel
V
OUT
R15ODACanalogoutputforR-channel
XTI28ICrystaloscillatorinput
(1)
XTO1OCrystaloscillatoroutput
ZGND11—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