Transmitter Schematics - Nokia 6275 Rf Description And Troubleshooting

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Transmitter Schematics

The following schematics are for general reference only. See the Schematics chapter for detailed versions.
RF_BUS_ENABLE
RF_BUS_DATA
RF_BUS_CLK
TX_GATE
Loop filter
F_REF_TX
R7001
10k
C7005 C7007
R7002
100p 27k 100p
C7006
2n2
GND GND GND
C7009
C7008
TX LO lock voltage
1u0
4p7
R7003
GND GND
SHORT_CIRCUIT
TX_IP
R7004
SHORT_CIRCUIT
TX_IN
R7005
SHORT_CIRCUIT
TX_QP
R7006
SHORT_CIRCUIT
TX_QN
TX_AGC1
PA_BIAS
Issue 1 - September 2006
VR6 VR6 VR2
C7000 R7000
0R
10n C7001
10n
GND
GND
TX IC
C7003 C7004
3p3 220p
GND GND
N7000
JUPITER_D4_PMB3365G
VIO
31
ENABLE VCC_CDRV
VR6 C7010 32 DATA COUT
3p3 33
CLOCK COUTX
ISET_DRV
34
TX_GATE
VCC_PDRV
GND
35
VDD_BUS POUTX
POUT
C7011 C7012
L7000
36
FREF
27nH
37
VDD_PLL
10n 18p
38
VDD_CP
GND GND
39
CP NC
1
GND_CP
PDET_OUT
2
VTUNE PDET_REF
3
VCC_VCO PDET_IN
4
VCC_LO VCC_PA(4.75V)
ISET_PA
9
BBI IPA1
10
BBIX IPA2
11
BBQ
12
BBQX
14
VCC_MOD
VR2 VIO 15
AGC_REF
16 AGC1
17
AGC2
18
VR2 VCC_RF
C7013 C7014
C7015 BOTTOM PLATE= GND
33p
33p 18p
GND
GND GND
C7002
100n
GND
VR2
C7016
10n
VR2
C7017 C7018
47p 10p
20
GND
GND
22
23
19
27
24
25
R7009
12k
21
GND
PWROUT_1
28
29 TEMP
30 DCOUT
5
VR1B
6
7
8
C7020 C7021
18p 10n
GND GND
C7019
12p
GND
R7007
22k
R7008
43k
GND
Figure 4: Transmitter schematic 1
Company Confidential
RF Description and Troubleshooting
VR2
C7022
3p3
L7001
GND
27nH
C7023
1p2
L7002
33nH
L7003
Cell TX filter
C7024 27nH
1p2
GND
VR2
C7025
GND B39192-B9014-E910
L7004
6n8H
C7026
0p5
L7005
12nH
L7006
PCS TX filter
6n8H
C7027
0p5
GND
R7010
0R
R7011
150R
R7012
180R
C7029 C7030 C7031
3p3 3p3 30p
GND GND GND
6275/6275i (RM-154)
FALSE_DET
Z7000
B39841-B9003-E910
836.5MHz
IN OUT
PA_INPUT_CEL
GND
GND GND
Z7001
1850-1910MHz
IN OUT
PA_INPUT_PCS
GND
GND GND
PWROUT
TEMP
DCOUT
IREF_CEL
IREF_PCS
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