JVC RX-230RBK - Searching by PTY Codes

RX-230RBK
M C7218 (1C102): PLL Synthesizer
1. The main function descriptions
(1)it makes the local oscillation frequency by the control data from IC401.
(2)Decode the control signal and transmit the signal for receiving conditions.
(3)For the best tuning, count the internal-frequency and transmit the data to IC401.
2. Terminal Layout 3. Block Diagram
Referrence
4 Phase Detector PD1
Driver Charge pump
24 PD2
i ee I Swallow Counter
FMin
[19
>
i
1/16,1/17
4bits
: Pes 2bit Programmable || '
ie |
E
=
cL fa} >
Dofs] |
_————————
lot GG Ai G42 3 ha fa [7 LB
oulo 1 2 3 4 +5 6 INO INI
4. Pin Function Description
/O Functions and Operations
1 | Xin,Xout__| VO _| Crystal oscillator(7.2MH
2 | ix the chip enable to'H'when inputting(/Dl)and outputting(DO)the serial data
3
D1
|
Receive
the
control
data
from
the
controlle
40
4 CL |__| This clock is used to synchronize data when transmitting the data of and DO.
5__| DO O__| Transmit the data from LC7218JM to the controller which is synchronizedwith CL
6
SYC
a
Not
used.
7 |__| Receive the tuned signal from 1C104(LA1266A)
8 STOP in --__ | Connected to GND
[POWER _|
9 POWER -- Not used.
QSC oc Not used.
11 MONO O | It is 'H' on FM-Monaural,'L'on FM-Stereo.
12 FM O It is ‘L'on MW mode.
MW O It is '‘L'on LW mode.
O
|
|
Oo
I
|
_
oO
14 | LW It is 'L'on FM mode.
15 | AM-IF Universal counter input for AM-IF from 1C104(LA1266A).
16 | FM-IF Universal counter input for AM-IF from 1C104(LA1266A).
Output the 'IF-signal request’ to 1C104when the pin-7(tuned in)goes to'H'.
18 AM SOC T Input the local oscilator signal of AM.
19 AM-OSC Input the local oscilator signal of AM.
20 Be This is a terminal of power supply.
21 PD1 oO PLL charge pump output:When the local oscllator signal frequency is higher than the
reference frequency hight level signals will output.
When it is lower than the reference frequency,low level signals will output.
When iti is same as reference frequency signals, it will be floating.
22 |PDe me Not used.