CHT4699-QDG
36-44GHz Variable Attenuator
GaAs Monolithic Microwave IC
Description
NC
NC
NC
NC
NC
NC
The CHT4699-QDG is a monolithic 36-
44GHz Variable Voltage Attenuator.
It is designed for a wide range of
applications, from military to commercial
communication systems.
The circuit is manufactured with a MESFET
process, 0.7µm gate length, via holes
through the substrate, air bridges.
NC
GND
GND
RF IN
GND
GND
1
2
3
24
23
22
21
20
19
18
17
16
15
14
13
NC
GND
GND
RF OUT
GND
GND
4
5
6
7
NC
8
NC
9
V1
10
V2
11
NC
A
12
NC
B
45
0
Main Features
■ Broadband performances: 36-44GHz
■ Minimum attenuation: 4dB
■ 30dB dynamic range
■ 27dBm input IP3
■ DC bias: -5 to 0V
■ 24L QFN4x4
dBS21 (dB)
-5
-10
-15
-20
-25
-30
-35
-40
35
37.5
40
42.5
Frequency (GHz)
47.5
50
Main Electrical Characteristics
Tamb.= +25°C
Symbol
Parameter
Freq
Frequency range
Min Att
Minimum attenuation with V1=V2= -5V
Dyn
Dynamic range of attenuation
IIP3
Input IP3 all attenuation
Min
36.0
Typ
-4
30
27
Max
44.0
Unit
GHz
dB
dB
dBm
Ref. : DSCHT4699-QDG2118 - 27 Apr 12
1/12
Specifications subject to change without notice
United Monolithic Semiconductors S.A.S.
Bât. Charmille - Parc SILIC - 10, Avenue du Québec - 91140 VILLEBON-SUR-YVETTE - France
Tel.: +33 (0) 1 69 86 32 00 - Fax: +33 (0) 1 69 86 34 34
UMS [ UNITED MONOLITHIC SEMICONDUCTORS ]
