CHR3894-QEG
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.
UMS
R3894
YYWW
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
20
18
16
Conversion gain (USB mode) @ IF 2GHz
Conversion gain (dB)
14
12
10
8
6
4
2
0
-2V
-0.4V
-0.2V
0V
+0.6V
35
36
37
38
39
RF Frequency (GHz)
40
41
Main Electrical Characteristics
Tamb.= +25°C
Symbol
Parameter
F
RF
RF frequency range
F
LO
LO frequency range
F
IF
IF frequency range
G
Conversion gain without attenuation
Min
37
17.5
DC
10
Typ
Max
40
21.0
3.5
Unit
GHz
dB
dB
dBm
13
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
UMS [ UNITED MONOLITHIC SEMICONDUCTORS ]
