CHT3091a
RoHS COMPLIANT
DC-40GHz ATTENUATOR
GaAs Monolithic Microwave IC
Description
The CHT3091a is a variable DC-40GHz
attenuator designed for a wide range of
applications, from military to commercial
communication systems. The backside of the
chip is both RF and DC grounds. This helps
simplify the assembly process.
The circuit is manufactured with a MESFET
process, 0.7µm gate length, via holes through
the substrate and air bridges.
It is supplied in chip form.
Main Features
Insertion Loss ( dB )
.
DC-40GHz
0
-2
-4
-6
-8
-10
-12
-14
-16
-18
-20
-22
-24
-26
-28
-30
0
5
10
15
20
25
30
Frequency ( GHz )
■
Broadband performances:
■
15dBm minimum input 1dB compression point
(any attenuation)
■
DC bias : -5V<VS<0V ; -5V<VP<0V
■
Chip size: 0.91 x 0.86 x 0.10 mm
CHT3091
Gain control
35
40
Main Characteristics
Tamb. = 25°C
Symbol
Fin
Min Att.
Max Att.
VSWRin
Parameter
Input frequency range
Minimum attenuation |S21| (VS=0V;VP=-5V)
Maximum attenuation |S21| (VS=-5V;VP=0V)
Input VSWR (any attenuation)
Min
DC
Typ
Max
40
Unit
GHz
dB
dB
3
20
2.:1
2.:1
15
VSWRout Output VSWR (any attenuation)
Pin1dB
Input 1dB compression point.(any attenuation)
dBm
ESD Protection: Electrostatic discharge sensitive device. Observe handling precautions!
Ref. : DSCHT3091a6354 - 20 Dec 06
1/8
Specifications subject to change without notice
United Monolithic Semiconductors S.A.S.
Route Départementale 128 - B.P.46 - 91401 Orsay Cedex France
Tel.: +33 (0) 1 69 33 03 08 - Fax: +33 (0) 1 69 33 03 09
UMS [ UNITED MONOLITHIC SEMICONDUCTORS ]
