Sharp 902SH Service Manual page 57

3g(umts)/gsm/gprs
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902SH
[W-CDMA RF]
TRANSMITTER
fTx: 1922.6~1977.4MHz
RECEIVER
fRx: 2112.6~2167.4MHz
BUILT-IN
AERIAL
CN902
COAXIAL CABLE
IC300
CX77313
CN901
POWER AMP.
MODULE (FOR GSM)
MCPC_I/F
CN1300
EXTERNAL
FL001
CONNEC-
TOR
ANT SW
MODULE
DIPLEXER
FL003
ESD DEVICE
DCS (1800MHz)
[GSM RF]
PCS (1900MHz)
GSM (900MHz)
FL400
37
LNA
GLNA
2, 27, 29
31, 33, 40~45
48
FL002
DUP-
1stLO
LEXER
fL1: 2302.6~2357.4MHz
IC400
OM5954ET
RECEIVER IC FOR W-CDMA
10
21
ISO-
PA
CPL
LATOR
FL650
FL500
3, 6, 9,
11~14, 17
DET
20, 22, 23
DAC4
IC630
RF9266
8
7, 15, 16
W-CDMA POWER AMP.
FILTER
18, 19
LX
IC620
7
MAX1820XEBC
SWITCH
DC/DC
DAC2
VCCPA
3
FB
PWM
DAC1
/PFM
4
REF
7, 8, 10, 12
FL330
14, 15, 17
HYBRID
9
ATT
BALUN
5
897.5MHz
FL331
HYBRID
13
1
ATT
BALUN
1.810MHz
11
+B
Tx VCO Low (1G)
LOOP
VTUNE
FILTER
44
Tx High Rx Low (2G)
PHDOUT
Rx VCO High
DIV
DIV
(4G)
90
0
90
0
VCO
TEST
FL100
RFHA
13
RX-SAW
21
RFHB
FL120
RFHC
2
RX-SAW
1
RFHD
FL110
RFLA
5
RX-SAW
4
RFLB
4 - - 3
CONFIDENTIAL
FL420
Rx_IF AMP
I/QDEM
fIF_Rx=190MHz
π/2 0
1/4
RF VCO
2ndLO
fL2: 760MHz
RF
PLL
36
32
29
25
48
49
IF BPF
TXRFVGA
9, 14, 16, 17, 19, 20,
22~24, 30, 31, 34,
GPA3
38~42, 43, 46, 50
IC501
IC700
LM20SITLX
OM5955ET
VBAT
IF
W-CDMA
TEMPERATURE
PLL
1, 8
SENSOR
TRANSMIT-
5, 6, 10
TER IC
3
2
GPA0
29, 33
LOGIC
CURR.REQ.
45, 47
BUSINTERFACE
IC100
OM5952AET
PHD
XO
RECEIVER/
TRANSMISSION IC
FOR GSM
CHARGE
PUMP
3, 11, 12, 14, 19, 23, 25, 27,
28, 31, 32, 38, 39, 41, 43
Figure 2 RF BLOCK DIAGRAM
9, 10
7, 8
Rx AGC AMP
Rx LPF
GAIN
LPF
VGA
TOL.
TUNE
CTRL
KILLER
VCO TUNE
Rx SERIAL IF
GLNA
RXON
PLLCTRL
3WIRE SERIAL BUS
18
24
XO
20
19
23
4, 3
1, 2
I/QMOD
Tx LPF
8, 10, 28
VGA
1/2
fIF_Tx=380MHz
33, 36, 44
CTRL
π/2 0
TXIFVGA
2ndLO
fL2:760MHz
IF VCO
1/2
1520MHz
TXRFVGA
Tx
TXIFVGA
SERIAL
LOGIC
VCXOCTRL
IF
PLLCTRL
3WIRE SERIAL BUS
IC1200
VDD_A
TWL93004CZQW
POWER
SUPPLY
LDO
/RF CONTROL
3WIRE SERIAL BUS
From IC1000
GPADC
141
PCTL
GPA0
M
34
117
GPA2
GP
U
130
GPA3
ADC
X
118
GPA4
49~52
17
MOD[A-D]
DAC01
8bit DAC
82
8bit DAC
DAC02
REG
From IC1000
94
DAC03
11bit DAC
DAC04
8bit DAC
PA
VCCPA
CONT
83
13MHz
54
IC101
XOOB
XOOC
VDD_D
AB1011
55
I2C SERIAL
GSM CODEC
CONTROL
46
PHDOUT
2, 13, 15,
45, 48, 62
IRA
IPOS
8
10
SIGMA
DELTA
IRB
INEG
9
7
CLOCK
SQUARER
QRA
QPOS
8
6
SIGMA
QNEG
7
QRB
5
DELTA
1, 9, 17, 18, 20, 28, 39, 40,
46, 47, 51, 52, 54, 63, 64
4 -- 4
902SH
RXIA/RXIB
To IC1400
RXQA/RXQB
VDD_B
From IC1400
MCLK
CRYSTAL
DAC3
13MHz
D770
X770
XOOB
XOOC
13MHz
TXI/TXIBAR
From IC1400
TXQ/TXQBAR
4, 7
IC800
LP3981ILD
2.8 V
REGULATOR
2
+B
From IC1400
24
VDD_A
LDOA
11
LDOB
VDD_B
LDOD
VDD_D
142
1MHz
116
MCLK
OSC
21, 32
I2C
I2C
To IC1000
DAC BUS
From IC1400
25, 27
To IC1000
I2C
56
SYSCLK2
4
IDATA
21
To IC1000
DCLK
29
QDATA

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