CHR3694-QDG_11 Datasheet, PDF (15/18 Pages) United Monolithic Semiconductors – 37-40GHz Integrated Down converter

37-40GHz Down Converter
CHR3694-QDG
Notes
The biasing circuits of the stages of the circuit are given in the schemes below.
Vd=4V
1.9k
IN
100
1.9k
26
Stage 1
Self-biased
60
100
150
Vgc=-2V  0V
1.9k
26
Stage 2
Self-biased
Gain control ^100
60
LNA
9
OUT
Stage 3
Self-biased
21
Vdx=4V
1.23k
LO IN
1.23k
42
10
Stage Buffer 1
Self-biased
38
200
Vgx
Stage
2 times multiplier
LO
8
LO OUT
Stage Buffer 2
Self-biased
57
Vgm
1.2k _0.5
0.5
Ref. : DSCHR3694-QDG – February 09
15/18
Specifications subject to change without notice
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