Philips Semiconductors

Product specification

NE/SA612A

Double-balanced mixer and oscillator

1990 Sep 17

6

612A

4

5

3

6

2

7

1

8

+6V

7pF

10pF

TO

BUFFER

DC CONTROL VOLTAGE

FROM SYNTHESIZER

MV2105

OR EQUIVALENT

1000pF

1000pF

5.5

µH

0.10pF

10

µF

0.06

µH

0.1

µF

3SK126

100k

2pF

TO SYNTHESIZER

100k

100k

330

2k

TO SYNTHESIZER

2N5484

2N918

0.01

µF

0.01

µF

1.0nF

0.01pF

SR00106

Figure 8. Colpitts Oscillator Suitable for Synthesizer Applications and Typical Buffers