JVC CA-MXG9BK - PLL Synthesizer IC (IC102); IC102 Functions and Pin Details

WM 1C7218 (1C102) : PLL Synthesizer
1. The main function descriptions
(1) It makes the local oscillation frequency by the control data from IC901.
(2) Decode the control signal and transmit the signal for receiving conditions.
(8) For the best tuning, count the internal-frequency and transmit the data to IC901.
2. Terminal Layout 3. Block Diagram
XIN
CE
Di
cL
DO
SYC
TUNED
STOP IN AM in
i]
POWER ' |
asc a ee
Mono eo A tl
[ss
im ct [4]
OUTO 1 2 3 4 5 6 INO IN1
Functions
4. Pin Functions
/O
vO
Symbol
1,24 |Xin,Xout Crystal oscillator (7.2MHz).
a
m
r
Receive the control data from the controller (IC901).
SY!
TUNED
STOP |
POWE
Qsc
ia)
Not used.
Receive the tuned signal from 1C104 (LA1266A).
Connected to GND
Not used.
7
2
a
Not used. =
11 It is “H” on FM-monaural, “L” on FM-Stereo.
It is “L” on FM mode.
It is “L” on MW mode.
It is “L” on LW mode.
Universal counter input for AM-IF from IC104 (LA1266A).
Universal counter input for FM-IF from 1C104(LA1266A).
mn M
M
Ww
AM-IF
FM-IF
IF RE
AM OSC
FM OS
s|z
15
17
18
Q
nput the local oscillator signal of AM.
(a)
nput the local oscillator signal of FM.
—=|-o jf = Ppwrn
No
°
<
(=) is}
This is a terminal of power supply.
reference frequency high level signals will output.
same as reference frequency signals, it will be floating.
N N
PD2
Vss N
Ww
a
=
Connected to GND
Fix the chip enable to “H” when inputting (Di) and outputting (DO) the serial data.
This clock is used to synchronize data when transmitting the data of DI and DO.
Transmit the data from LC7218 to the controller which is synchronized with CL.
Outputthe “IF-signal request” to C104 when the pin-7 (tuned in) goes to “H
PLL charge pump output : When the local oscillator signal frequency is higher than the
When it is lower than the reference frequency, low level signals will output. When it is
RX-MXG9BK
15] AMIF
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(No.20434) 1-45