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