Pll System : Sc370651F Or Mc145190F-K (Pllivco Ici) - Kenwood TK-940 Service Manual

SEMICONDUCTOR DATA
PLL System : SC370651F or MC145190F-K (PLLIVCO I C I )
Terminal connection diagram
REFin
Din
CLK
VPD OUTPUT A
P ;
I_
: : : P U T
i 3
Rx TEST2
TEST1 9 12 Vcc
-
fin 10 11 fin
Block diagram
DATA OUT
20 P
REFln
-
OSC OR
f R
-
4 STAGE
SELECT
5
OUTPUT A
1 DIVIDER
LOGIC
REFout
-
(CONFIGURABLE)
1 /
N
/ 3
/
13
DOUBLE BUFFERED
*
Bit GrabberTM R REGISTER
16 BlTS
t
Bit
Grabberm C REGISTER
8 BITS
' 1
I
STANDBY
POR
LOGIC
+
Bn Grabberm A REGISTER
2 4 BlTS
6-STAGE 12-STAGE
A COUNTER N COUNTER
fin
11
64/65
-
10 PRESCALER CONTROL
fin
t
LOGIC
I
A Y y
TEST1
SUPPLY CONNECTIONS
:
PIN12= V C C (VcTO INPUT AMP AND 64/55 pnCSCALERl
PIN5 = VPD (VcTO PHASEIFREQUENCY
'9RS A AND 8)
PIN14= VDD (V+TO BALANCE OF Cl'.f'
.
PIN7
=
GND (COMMON GROUND: