Datasheet
www.ti.com
PCM2900TYPICALCIRCUITCONNECTION1
D+
28
27
26
25
24
23
22
21
20
19
1
2
3
4
5
6
7
8
9
10
PCM2900
D–
V
BUS
DGNDU
HID0
HID1
HID2
SEL0
SEL1
V
CCCI
SSPND
XTI
V
DDI
DGND
TEST1
TEST0
XT
O
V
CCP2I
AGNDX
V
CCXI
D+
D–
C
1
11
12
13
14
AGNDC
V
L
IN
V R
IN
V
COM
18
17
16
15
V
CCP1I
V
L
OUT
V R
OUT
AGNDP
22 W
22 W
1.5k 3W
´
1.5kW
GND
V
BUS
C
2
C
9
C
10
1MW
12MHz
C
5
C
6
C
3
C
8
C
1
1
C
12
LPF,
Amp
LPF,
Amp
C
7
C
4
3.6V–
3.85V
13kW27kW
IN
1
O
UT
2
G
ND
3
A
DJ
4
EN
5
IC1
MUTE/
Power
Down
+
+
C
13
+
+
+
+
D
1
2.2 W
1 Fm
S0264-03
PCM2900
PCM2902
SLES035E–MARCH2007–REVISEDMARCH2008
Figure36illustratesatypicalcircuitconnectionforahigh-performanceapplication.Thecircuitillustratedisfor
informationonly.ThewholeboarddesignshouldbeconsideredtomeettheUSBspecificationasa
USB-compliantproduct.
NOTE:C
1
,C
2
:10µF
C
3
,C
4
,C
7
,C
8
,C
13
:1µF(Thesecapacitorsmustbelessthan2µF.)
C
5
,C
6
:10pFto33pF(dependingoncrystalresonator)
C
9
,C
10
,C
11
,C
12
:Thecapacitancemayvarydependingondesign.
IC1:REG103xA-A(TI)orequivalent.AnalogperformancemayvarydependingonIC1.
D
1
:Schottkybarrierdiode(V
F
≤350mVat10mA,I
R
≤2µAat4V)
Figure36.Bus-PoweredConfigurationforHigh-PerformanceApplication
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ProductFolderLink(s):PCM2900PCM2902
Not Recommended for New Designs