CHT4694-99F_15 Datasheet, PDF (1/14 Pages) United Monolithic Semiconductors – 25-45 GHz Attenuator

CHT4694-99F
25-45 GHz Attenuator
GaAs Monolithic Microwave IC
Description
The CHT4694 is a variable 25-45GHz
attenuator designed for a wide range of
applications, from military to commercial
communication systems. The backside of the
chip is both RF and DC grounded. This helps
to 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
■ Broadband performance: 25-45GHz
■ 22dBm typical input 1dB compression point
(any attenuation)
■ 25dB dynamic range
■ DC bias: -5V<V1<0V ; -5V<V2<0V
■ Chip size: 1.5x1.39x0.1mm
Main Electrical Characteristics
Attenuation versus Frequency & V1, V2
0
-2
-4
-6
-8
-10
-12
-14
-16
-18
-20
-22
-24
-26
-28
-30
-32
-34
-36
-38
-40
10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Freq (GHz)
Tamb.= +25°C
Symbol
Parameter
Min Typ Max Unit
Fin Input frequency range
25
45 GHz
Min Att.
|S21| (V1=-5V;V2=-5V) (25 to 30GHz)
|S21| (V1=-5V;V2=-5V) (30 to 40GHz)
|S21| (V1=-5V;V2=-5V) (40 to 45GHz)
3
4
dB
4
5.5 dB
4
7
dB
Max Att. |S21| (V1=0V;V2=0V) (25 to 30GHz)
20
23
dB
|S21| (V1=0V;V2=0V) (30 to 45GHz)
25
28
dB
Pin1dB Input 1dB compression point (any 20
22
attenuation) (25-40 GHz)
Input 1dB compression point (any ₁₈
20
attenuation) (40-45 GHz)
dBm
dBm
ESC Protections: Electrostatic discharge sensitive device observe handling precautions!
Ref. : DSCHT46942305 - 31 Oct 12
1/14
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.: [phone] - Fax: [phone]