CHT3091a

RoHS COMPLIANT

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

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

■ Broadband performances:

DC-40GHz

■ 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

.

-30

-28

-26

-24

-22

-20

-18

-16

-14

-12

-10

-8

-6

-4

-2

0

0

5

10

15

20

25

30

35

40

Frequency ( GHz )

CHT3091

Gain control

Main Characteristics

Tamb. = 25°C

Symbol

Parameter

Min

Typ

Max

Unit

Fin

Input frequency range

DC

40

GHz

Min Att.

Minimum attenuation |S21| (VS=0V;VP=-5V)

3

dB

Max Att.

Maximum attenuation |S21| (VS=-5V;VP=0V)

20

dB

VSWRin

Input VSWR (any attenuation)

2.:1

VSWRout Output VSWR (any attenuation)

2.:1

Pin1dB

Input 1dB compression point.(any attenuation)

15

dBm

ESD Protection: Electrostatic discharge sensitive device. Observe handling precautions!

Tel.: +33 (0) 1 69 33 03 08 - Fax: +33 (0) 1 69 33 03 09