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8. Block Diagrams
8-1
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BPF
BPF
BPF
BPF
Quadrature
Upconverter
Quadrature
Upconverter
LPF
LPF
S
S
B
I
Gain Ctl &
Bias
Circuits
LO Generation &
Distribution
PLL 1
LPF
Quadrature
Downconverter
Quadrature
Downconverter
LO GEN
& Dist
LPF
PLL 2
Power
Detector
ground
slug
TCXO
To SSBI
HB_RF_OUT3
HB_RF_OUT2
HB_RF_OUT1
LB_RF_OUT1
LB_RF_OUT2
RF_ON
DAC_IRE
F
SBDT
TX_BIA
GCELL_IN
GCELL_IN
EGSM_INP
EGSM_INN
DCS_INP
DCS_INN
PCS_INP
PCS_INN
WPRXHBP
WPRXHBN
WPRXLBP
WPRXLBN
WPRXSE2_IN
WPRXSE1_IN
W
P
R
X
S
E
1_
O
U
T
W
P
R
X
S
E
2_
O
U
T
W
B
_
M
X
_I
N
P
W
B
_
M
X
_I
N
N
V
D
D
A
s
V
T
U
N
E
2
G
N
D
PWD_DET_IN
TX_IP
TX_IN
TX_QP
TX_QN
TCX
O
TCX
O
VTUNE
2
PRX_IP
PRX_IN
PRX_QP
PRX_QN
LPF & DO
Correction
LPF & DO
Correction
Quadrature
Downconverter
Quadrature
Downconverter
Quadrature
Downconverter