Samsung DVD-V940K, Training Manual, Page: 98 / 164

Circuit Operating Descriptions
7-40
7-10 DVD RF
(1) RIC1 (ES6603 = SP3723C)
The main furction of this IC is control the DVD RF signal by eolualiziny.
This IC has a favction “(aser power control). This function makes a RF signal to grnerale a RF signal from
pickoup by stable control. and the communicwtion with U1(main micom) make it distirguish the disc and check
several signal ; tracking , detecl , etc...
(a) Basic
ES6603 5V/3.3V and reference wltge1.5V.
(b) RF signal
PICK-UP
#
$
%
^
)
1
2
(
8
7
104
104
104
104
i
D G
s
A
A
B
C
D
B
C
D
E F LDDVD
LDDVD
PDDVD
PDDVD
LDCD
LDCD
PDCD
PDCD
+
=
“ ‘
FE
RFINN RFINP
RFO
DVDR FP
DVDR FN
BYP
FU LL W AVE
RE C TI FIER
DIN
AG C
CH AR G E
PU MP
PR O G RAMM ABLE
EQ U ALI ZER
FI LTER
DIFFER EN TI AT O R
FN
P
FNN
AG C
RX
A
B
C
D
GC A
GC A
GCA
GC A
3
A + D
B + C
FE
PI
SU M
Am p.
RF
AC
RF S I N
MUX
LPF
TE
MUX
CD/DVD
A2
B2
C2
D2
EQ
EQ
EQ
EQ
PH ASE
DET ECT O R
PH ASE
DET ECT O R
Co m p.
GCA
GCA
GCA
GCA
3
CD_ E
CD_ F
CE
CN
CP
DFT
RF D C
MIN DVDL
D
CDLD
ML
PF
MP MB
DVDP D
CDP D
LD H / L
D ual APC
MIR
R
SDEN
SCLK
SER I AL PO R T
R EG I STER
V125
VC
V C I f or serv o i nput
SI G R b3
APC SEL
DV D/CD
VP
A
VPB
VNA
VNB
RF C R b7-6
2
2
IMP U T
BI AS
LPF
Buf f
TE
RS T
+-3dB
V33
V 33 for Outp ut b uff
ME
V
ME
VO
Offs et
cancel
PI O R b4-0
P I offs et
5
CP/CN
Low I m p
AG C H O LD
I N PU T I M P SEL
LPF
Clam p
& Env
Level
DAC
2
GCA
GCA
GC A
TR C R 2 b3-0
3B
4
SEL
CD_ A
CD_ B
CD_C
CD_ D
GCA
GC A
GC A
GC A
w/LP F
AG CO
70kHz
70kHz
fo r TE ,FE & C E outp ut ref.
PI I
+/ - 4dB
MUX w/LPF
w/LPF
w/LPF
RF C R b2-0
3
3
SSO UT
B + D
A + C
A
B
C
D
CD/DVD
CD R b4
CCR b5
I N PU T SEL
I N PU T I M P SEL
RF C R b2-0
TR C R 2 b6-4
DP D E Q
TR C R b6
DP D CO M P H YS O N
PD C R b3 TR C R 2 b7
PD C R b3
CT C R b3-0
CO gai n
CB R b1-0
RF C R b3
CA R b3-2
SI G DET
RF C R b5-4
FCC R b6-0
FB CR b6-0
CA R b1-0
Env/ Clam p
(CD R b5=1)
6dB i s added
@ hig h gain m ode
(CD R b5=1)
12dB i s added
@ hig h gain m ode
C ONTROL
Sign al s
To each bl ock
CD R b3
VC
2
Offs et
cancel
CE R b4-0
C E offs et
4
GC A
0- +8dB, 4bit
4
Off set
cansel
CC R b4-0
FE offs et
5
GC A
+/ - 6dB 4bit
4
AT
O
P AT
O
N
AT T
4
SI G R b7-4
AT T
AI
N AI
P
Offs et
cancel
TR C R b5-0
TR offse t
6
GC A
3
CFR b7-5
TR G ai n
GC A
FO C R b7-4
FS gai n
4
+/ - 4dB
MN TR
MO N
SE L
CD R b6
HLD E N
FE
SEL
CE
V25
V125
V25/3
3
Te nvb
PI O R b7-5
CB R b5-4
TE M ASK sel
LDO
N
TOP HLD
TOP HLD
V25
V25/ 2
TO P H LD
BTM EN V
BTM H LD
TO P EN V
AT T
AT T
MU X
PI
TE
MUX
VC
PI
I
AG
CO
T
env
b
MRC R 2 b7 -0
droop rat e
cont rol
4D
SU M
MUX
offs et
MU X
Vref
Btm cl am p
& cl ip
MUX
MUX
Btm Env
CB R b3-2
TOPHL D
2
DAC
CO M P
CT CR b7
BC A D E T
TP H
2
DIP
LCN
LC P
SU B
CF R b4
CE FD B
CF R b2-0
CE-ATT
LPF
AT T
Pol . sel
Buf (- 12dB)
3
GC A
CG R b5-4
Ga i n
LINK
CD R b7
LI N KE N
CF R b3
CEPOL
CC R b7
DIS K DE T
SDAT A
FO CR b3-0
FO G ai n
R ESU M
2
14
CD R b5
H i gh gai n
AG
C
BT
M
EN
V
CT C R b5-4
M EVO SEL
2
C HR b7-6
Mirr D efec t
Co m p A TT
2
MR CR b6-4
Mirr C om p
AT T Level
3
@ high gain m ode
SI G R b2-0
(CDR b5=1)
12dB i s added
(CD R b5=1) @ high gain m ode
SI G R b2-0
12dB is added
CG R b1
O U TP UT I NHIB I T
CG R b0
O U TP UT I NHIBI
T
I
TE
Communication
port
Fig. 7-36
This diagram shows the flow of signal generated by the pickup. A, B, C, D syrcls detected from pickup are
converted in to RF syral (A+B+C+D) vid rf summing AMP.