Page 270 - Complete Wireless Design

Frequency Synthesizer Design

Frequency Synthesizer Design 269

WIDEBAND VCO
12 V CC
VCO GAIN AMPLIFIER
0.1
f 10
f 12 V CC
24 V
CC BUFFER VCO HARMONIC
2nd LPF 80nH 91
0.1
f 0.1
f 100
f 0.1
f AMPLIFIER FILTER
10K* 6dB PAD 0.1
f 100pf 3dB PAD
80nH 1GHZ
+ 100pf OHMS 1000pf 4GHz 900nH 18
4.4X 38 P1dB = 18 55 V CC TO
V AMP GAIN = 11dB 2GHZ
– 1000pf OUTPUT
100pf M.C. (10dbm)
(center) SYNERGY CORP. 150 150 ERA-65M 290 290
VFC-S-1000
10K* 1-2GHz
34K*
0.5-22V Tuning
50MHz/V
VCO GAIN W/OP-
AMP = 220MHz/V 27 OHMS

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