CHR3694-QDG Datasheet, PDF (15/18 Pages) United Monolithic Semiconductors – 37-40GHz Integrated Down converter 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
1.9kΩ
IN
100Ω
1.9kΩ
26Ω
Stage 1
Self-biased
60Ω
100Ω
150Ω
Vgc=-2V 0V
1.9kΩ
26Ω
Stage 2
Self-biased
Gain control ^100Ω
60Ω
LNA
9Ω
OUT
Stage 3
Self-biased
21Ω
Vdx=4V
1.23kΩ
LO IN
1.23kΩ
42Ω
10Ω
Stage Buffer 1
Self-biased
38Ω
200Ω
Vgx
Stage
2 times multiplier
LO
8Ω
LO OUT
Stage Buffer 2
Self-biased
57Ω
Vgm
1.2kΩ _0.5Ω
0.5Ω
Ref. : DSCHR3694-QDG – February 09
15/18
Specifications subject to change without notice
Route Départementale 128, BP46 - 91401 ORSAY Cedex - FRANCE
Tel.: [phone] - Fax: [phone]