CHR3894-QEG

Ref. : DSCHR3894-QEG2201 -19 jul 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.: +33 (0) 1 69 86 32 00 - Fax: +33 (0) 1 69 86 34 34

37-40GHz Integrated Down Converter

GaAs Monolithic Microwave IC in SMD leadless package

Description

The

CHR3894-QEG

is

a

multifunction

monolithic

receiver,

which

integrates

a

balanced cold FET mixer, a LO chain with

buffers associated to a time two multiplier,

and a RF low noise amplifier including gain

control.

It

is

designed

for

a

wide

range

of

applications, from military to commercial

communication systems.

The circuit is manufactured with a pHEMT

process, 0.15µm gate length, via holes

through

the

substrate,

air

bridges

and

electron beam gate lithography.

It is supplied in RoHS compliant SMD

package.

Main Features

■ Broadband performances: 37-40GHz

■ 13dB Conversion gain

■ 15dBc Image Rejection

■ 2dBm IIP3 without attenuation (GC=-2V)

■ 8dB Gain Control range

■ 4dB Noise Figure for IF>0.1GHz

■ 0dBm LO input Power

■ DC bias: Vd=4V @ Id=250mA

■ 24L-QFN4x5

■ MSL1

Main Electrical Characteristics

Tamb.= +25°C

Symbol

Parameter

Min

Typ

Max

Unit

RF frequency range

37

40

GHz

LO frequency range

17.5

21.0

dB

IF frequency range

DC

3.5

dB

G

Conversion gain without attenuation

10

13

dBm

UMS

R3894

YYWW

UMS

R3894

YYWW

UMS

R3894

YYWW

0

2

4

6

8

10

12

14

16

18

20

35

36

37

38

39

40

41

RF Frequency (GHz)

Conversion gain (USB mode) @ IF 2GHz

-2V

-0.4V

-0.2V

0V

+0.6V