Philips Semiconductors
Product specification
Double-balanced mixer and oscillator
SA602A
5.5µH
+6V
0.10pF
10µF
0.1µF
1
8
2
602A
7
7pF
10pF
TO
BUFFER
3
6
1000pF
4
5
1000pF
0.06µH
DC CONTROL VOLTAGE
FROM SYNTHESIZER
MV2105
OR EQUIVALENT
0.01µF
100k
2k
3SK126
2N918
2N5484
2pF
TO SYNTHESIZER
100k
100k
330
1.0nF
0.01µF
TO SYNTHESIZER
SR00075
Figure 8. Colpitts Oscillator Suitable for Synthesizer Applications and Typical Buffers
0.5 to 1.3µH
22pF
34.545MHz THIRD OVERTONE CRYSTAL
1nF
10pF
V
CC
6.8µF
100nF
10nF
8
7
6
5
602A
1
47pF
INPUT
220pF
100nF
0.209 to 0.283µH
2
3
4
SFG455A3
OR EQUIVALENT
SR00076
Figure 9. Typical Application for Cellular Radio
1997 Nov 07
7