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IC BLOCK DIAGRAM & DESCRIPTION
IC241 LC72121M-D (Pll Synthesizer)
2
Vssx
XIN
1
XOUT
24
FMIN
17
AMIN
16
CE
3
DI
4
CL
5
DO
6
V
18
DD
Vssd
15
IC440 AN7348K ( Play/Rec Pre Amp)
A/Rec
IC443 BA7755A (Head Switch)
1
2
REFERENCE
DIVIDER
SWALLOW COUNTER
1/2
1/16, 1/17 4bits
12bits PROGRAMMABLE
CCB
DATA SHIFT REGISTER LATCH
I / F
POWER
ON
RESET
7
8
BO1 BO2 BO3 BO4
24
23
22
21
Mute
B
PB Amp(L)
PB Amp(R)
A/Rec
Mute
B
1
2
3
4
3
4
5
PHASE DETECTOR
CHARGE PUMP
DETECTOR
DIVIDER
UNIVERSAL
COUNTER
9
10
11
14
IO1 IO2
20
19
18
17
16
ALC
Rec
Amp(L)
Rec
Amp(R)
R
Logic
A/B
Logic
Rec/PB
5
6
8
9
7
- 10 -
19
PD
20
AIN
UNLOCK
21
AOUT
22
Vssa
13
IFIN
15
14
13
R
P
P
R
Nor/Cro
& Hi/Lo
Logic
Ripple
P
Rejection
10
11
12
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