Alinco DJ-G5, Service Manual

Page: 18 / 73

7) MC3372VM (XA0343)
Low Power FM IF
Equivalent Circuit
■
0
— ^
Crystal Osc.
r=z
1
=□
Mixer Input
Audio
Crystal Osc.
d
2 15
= 3
GND
Amp
Mixer Output
c=
3
14
Z3
Mute
1
Vcc
c=
4
13
ZD
Meter drive
I
Limiter Input
5 12
Squelch Input
Decoupling
Limiter Output
c z
6
11
10
= 3
Filter Output
Filter Input
cn
7
H3
Quad Input
c=
8 9
=1
Demodulator
Output
Ta=25f’C
Parameter Pin No. Symbol Ratings Unit
Max. supply voltage 4 Vcc 2.4-9.0 Vdc
RF input voltage 16 Vrf
0.005-10
mVrms
RF input frequency 16 Frf 0.1-100
MHz
Oscilltor input voltage 1 Vlocal
80-400
mVrms
IF frequency
-
Fif
455 kHz
Limitter amplifier input voltage
5 Vif 0-400 mVrms
Filter amplifier input voltage
10 Vfa 0.1-300 mVrms
Squelch input voltage 12 Vsq 0 o r2
Vdc
Mute sink current 14 Isq
0.1-30
mA
Temperature range -
TA
-30-+75 °C
8) NJM2100V (XA0342)
Dual Operational Amplifiers
2 0