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DESCRIPTION OF PINS
Pin
Function
No.
wave Information
IF AGC
5
FILTER
RF AGC
6
DELAY ADJ.
GND-1
7
(YIF SIF)
8
VIF IN
9
Vcc-1
10
(VIF SIF)
11
APC FILTER
(cont.)
Voltage and
4.4 to 1.5V
––––––
––––––
1.5V
5V
3V
Peripheral circuitry
1k
1k
2k
80
320
14k
3V
R
77
Circuit description
Dynamic AGC circuit is
used to improve AGC
response characteris-
tics.
Set a filter constant to
avoid a sag around
70dBµ.
IF AGC Voltage
7.5k
4.4V
RFAGC delay point is
set by the voltage
applied to this pin.
Input resistance is 1kΩ.
Input capacitance is
7pF.
1.2k
1.2k
320
1.5V
11 pin
Output
The f characteristic of a
loop in the locked state
can be set by R.
3.4k
Normally set to in the
60p
range of 100 to 150kHz.
3.4k
V11
50dBµ 70dBµ
100dBµ
IF Input
fc frequency
fo
IF frequency
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