beautypg.com

Figure 10-15 receive vco schematic, Oscillator, Capacitive multiplier – Viking 242-2009-632 User Manual

Page 216: Q801, Q802

background image

SCHEMATICS AND COMPONENT LAYOUTS

10-10

March 1999
Part No. 001-2009-600

Figure 10-15 RECEIVE VCO SCHEMATIC

+

1300

+12V

OSCILLATOR

+12V

10

27pF

3.6k

.039uH

27pF

27pF

5.1k

6.2k

.039uH

+

15

CAPACITIVE

MULTIPLIER

MOD IN

TO RESONATOR TAP

CONTROL IN

C805

C806

R804

L804

CR802

C804

C803

CR801

C802

R801

C807

R802

C809

Q801

L803

C810

C811

R803

R805

R806

C812

C813

Q802

L805

R807

27pF

C808

3

2

TRANSMIT VCO ONLY.

2

2

2

3

3

3

3

3

3

C805

.1uF

.47uF

C804

C806

1uF

C812

C813

DESIG

RX

TX

NOTES:

R804

4.7k

12k

3636

R814

10k

1. RESISTORS ARE IN OHMS AND CAPACITORS

IN MICROFARADS UNLESS OTHERWISE SPECIFIED.

4.7uF

2.2pF

3.9pF

3.3pF

5.6pF

4.7pF

WO 801

WO 804

WO 807

WO 808

WO 805

WO 802

WO 803

.3pF

180

RF OUT

WO 806

100

2.7pF

C803

1.1pF

L805

.039uH

.022uH

1pF

C814

2

3

3

27pF