CXA1695L
Pin Description and Equivalent Circuit
Pin
No.
Typical pin
voltage (V)
Equivalent circuit
Description
Symbol
IF OUT
1
Under VHF
operation
4.4
IF output.
Vcc
8
55
Under UHF
operation
4.4
1
2
4
VHF IN 1
VHF IN 2
3.2
3.3
3.2
VHF input.
Normally a decoupling
capacitor is connected at pin 2
to GND and pin 4 is used for
input.
4
2
3k
3k
3.3
7.5
3
5
MIX OUT 1
MIX OUT 2
Mixer output and IF amplifier
input.
Vcc
8
7.2
7.5
7.2
450 450
5k
3
5
5k
6
7
GND
SW
0
GND
3V or more
UHF/VHF switch pin.
Connect 9V source through
about a 10kΩ resister for VHF
reception; 0V or leave open for
UHF.
Vcc
8
7
40k
0.4V or less
60k
—2—