SA602A

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© NXP Semiconductors N.V. 2014. All rights reserved.

Product data sheet

Rev. 3 — 27 May 2014

7 of 19

NXP Semiconductors

SA602A

Double-balanced mixer and oscillator

8.

Application design-in information

Fig 7.

Colpitts oscillator suitable for synthesizer applications and typical buffers

SA602A

aaa-013258

1

2

3

4

6

5

8

7

0.1 μF

5.5 μH

10 μF

10 nF

+6 V

to buffer

7 pF

10 pF

1000 pF

0.06 μH

1000 pF

DC control voltage

from synthesizer

MV2105

or equivalent

0.01 μF

2 kΩ

to synthesizer

330 Ω

3SK126

0.01 μF

100 kΩ

1.0 nF

100 kΩ

100 kΩ

2 pF

to synthesizer

2N5484

2N918

Fig 8.

Typical application for cellular radio

aaa-013257

SA602A

45 MHz

RF input

47 pF

220 pF

100 nF

0.209 μH

to

0.283 μH

10 pF

1 nF

22 pF

44.545 MHz

third overtone crystal

0.5 μH to

1.3 μH

output

10 nF

100 nF

5.5 μH

6.8 μF

SFG455A3

or equivalent