Philips Semiconductors
Product specification
Double-balanced mixer and oscillator
NE/SA612A
TEST CONFIGURATION
0.5 to 1.3µH
22pF
10pF
34.545MHz THIRD OVERTONE CRYSTAL
1nF
5.5µH
V
CC
100nF
6.8µF
10nF
8
7
6
5
150pF
OUTPUT
1.5 to
44.2µH
612A
330pF
120pF
1
2
3
4
47pF
0.209 to
0.283µH
INPUT
220pF
100nF
SR00101
Figure 3. Test Configuration
8
V
CC
18k
BUFFER
6
7
1.5k
4
1.5k
5
25k
BIAS
BIAS
2
1
BIAS
1.5k
1.5k
3
GND
SR00102
Figure 4. Equivalent Circuit
3
1990 Sep 17