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4. TROUBLE SHOOTING
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4.6 Checking UMTS Block
4.6.1 Checking Tx level
TP1
TP2
TP3
TP4
Rev.D
1p
C437
ANT101
NA
L101
56p
C101
ANT
G1
G2
RF
SW100
KMS-507
100nH
L102
ANT102
C450
22p
11
U500
C102
NA
20dB
Rev_1.0
Rev.B
Rev_1.0
Rev.D
WCDMA
7dB
0.5p
L125
FL102
EFCH1950TDF
1
2
G1
3
G2
5
G3
1
IN
4
O1
U102
CP0402A1950DNTR
50OHM
4
3
COUP
2
IN
1
OUT
L404
1.8nH
45
31
NA
L122
KRX102U
TR100
2
1p
C165
3.3p
C162
C159
15p
R122
130
R11951
1.5p
C154
41
RX
TX
2
FL104
ACMD-7602
ANT
3
PGND
130
R121
0.1u
C170
4.7u
C155
47
R120
2
RFOUT
8
1
VCC1VCC2
10
4
VCONT
5
VREF
WS2512_TR1G U103
11
BGND
GND1
3
GND2
6
7
GND3
9
GND4 RFIN
0.5p
C164
100p
C192
C158
15p
1nH
L123
10nH
C157
+VPWR
PA_R0
+VPWR
PWR_DET
PA_ON
VREG_TCXO_2.85V
For testing, Max power of UMT 2100 is needed.
TP1
TP2
TP3
TP4