LG GSA-4167B Service Manual page 52

Block Diagram
*3300p
Lo-Z function by IDGATE.
fast mode
Lo-Z function by IDGATE.
0.068u
RFIP
RFIN
SUMF2
0.068u
to WRF
IP1/LPPOUT
D
IP2/MIRR
D
SUBO/LPPMON
SUBI/LPPSIG
2200p
MA
MB
MC
MD
SA
SB
SC
SD
HAVC
pick-up I/F
reference level
WBLSH
D
MPDSH/
SPDSH
D
LO_ZB/SPDSH
SRVREF
power 3.3V
20k(*1)
IREFT
VREF1
VFREFO
MRSTB
D
SDEN
D
SCLK
D
SDATA
D
PORT00~07.10~13
D
WGATE
D
WGATE
D
RFPDSH
D
FVREF
FMD
In the case of
analog APC
.
. 3.3us
*3300P/0.068u
SUBP.N
RF SLIM/SUB
HP2
(RGA)
M
U
X
M
U
ID
X
MIRR
M
DET
U
X
2
Pick
S/H
WOB
I/F
4
S/H
main
4
sub
S/H
MUX
pin
SUMF2
WRF
VHALH(=VDD/2)
VREF
VREF1(=2.1V)
FVREFO(=2.5V)
Programm
Power
Serial
able I/O
Cont.
Cont.
port
Reg.
12
APC
GCAOUT
PWWMON
BHOUT
D
3300p 0.1u
D D D
RF
HP3
AGC
SUBW
Wobble
AGC1
SUB
AGC2
DPD
PE
SHPE
HFSUM HFPE
M
WRF
U
X
SAV
EQOP/N
IP2/MIRR pin
MIRR
power 3.3V(VDD)
12k
VREF1
0.47u
(*2)
4700p
mclk
to MIRR.DEFECT
EQOP
RF
EQON
EQ-
EQ
AUTO
EQOS
LPPMON/EQOS/RRF/WRF
mclk
LPP
mclk
WOBFCF
F0-CNT
AWOBSIG
WOBSIG
BPF AGC3 COMP
BPO
WAG2
LNDTRK
TE
BALANCE
to LE
MPP SPP
FE
BALANCE
MPP
RRF
SPP
FE
mclk
RECD
RECD
BLANK
MIRRTOPH
MIRRBOTH
MIRRHPF
MIRR
DEFECT
BOTH
RFHLD/TISH1 pin
SPBLVL/TISH2
TIE
SPBLVL
LO_ZB/SPDSH
R-OPC
PHBETA/TCE
BPO
OPC
BHBETA/TIE
BCENT
RFHLD/TISH1 pin
each blocks
SIGM
...Combined pin
...digital pin
D
...digital/analog pin
D/A
power 5V
ATEST
BHC 15,000p
VREF1
0.47u
VREF1
to A/D
0.1u
D
*HPF fc=1kHz
WAG3
WAG1
0.1U
0.12U
0.12U
D
TE
to LPF,A/D
FE
toLPF,A/D
PE
toLPF,A/D
LE
toLPF,A/D
MCLK
D/A
D
0.033u
0.033u
0.1u
TOPH
0.068u
0.033u
DFT
D
D
toLPF,A/D
toLPF,A/D
toLPF,A/D
3
AIN1~3
SIGM
toLPF,A/D
(*1), (*2)...1% Resistor
56