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IC BLOCK DIAGRAM
& DESCRIPTION
LC78622E
(Digital
Signal
1S111
TEST2
TEsT4
EFMO
VVLIU
VVSS
PDO
(SET
FR
PCK
TAI
TEST1
1EsT3
TEST5
Vrm
VSS
r
I VCO
Clrxk
Osc,llalor
I
,
II
I
1~
II
I
I
b-
FSEQ 22
Syncrnous
Detect
II
!
EFM Demodulation
lnterpolalatlon Mute
u
B$lhngual
J
J
Olgltal
out
C2F
DOUT
I
I
1
o'
O(g,tal
Attenuator
Cl C2 Error Oetect &
Correct Control F!ag
SubCode Oxract
-J-&w
HFL TES
TOFF
JP-
JP.
FE?
TGL
CONT1
CONT3
CON15
EMPH
Ei
16M 42M
FSX XIN
XVIID
RVD,'
RCHO
LCHO
MUTEL
LVn[)
CONT2
CONT4
xv.,
XOUT
RVSS
MuTER
LVSS
—
8
lb,t
DAC
LPF
,NC]
LA9240M (Servo
SignalProcessor)
L
,,.,
!
,,.,
?
IN
,3
,4
,,
5
+(
SC
SC
El
VCA
OAL
VCA
:,
I
,,,
,,s
u SM
:" .
:"
.L",
4,,
,?
"+,
C.L
,,.
I
2
IF Amp
.–
J
~=+
.—
TE
,,
6
,E
,
,,,,
0
T SERVO&
T LOG(CK
SC,
9
1
E
L
—
A
F sER"o
& F L'OGCK
"1
–~
SPINDLE
SERVO
A
II
L
SLED
SERVO
I
'"L
-15-
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