CHR3894-98F Datasheet, PDF (1/12 Pages) United Monolithic Semiconductors – 37-40GHz Integrated Down Converter

CHR3894-98F
RoHS COMPLIANT
37-40GHz Integrated Down Converter
GaAs Monolithic Microwave IC
Description
The CHR3894-98F is a multifunction
monolithic receiver, which integrates a
balanced cold fet mixer, a LO chain with
buffers associated to a time two multiplier, IF_I
and a RF low noise amplifier including gain
control.
It is designed for a wide range of ^IF_Q
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 available in chip form.
LO IN
X2
RF IN
VGX
VD
VD1
VGL
GC
Main Features
■ Broadband performances: 37-40GHz
■ 13dB Conversion gain
■ 16dBc Image Rejection
■ 2dBm IIP3 without attenuation (GC=-2V)
■ 8dB Gain Control range
■ 4.5dB Noise Figure for IF>0.1GHz
■ 0dBm LO input Power
■ DC bias: Vd=4V @ Id=250mA
■ Chip size 2.6x2.7x0.1mm
Conversion gain (USB mode) @ IF 2GHz
20
18
16
14
12
10
8
6
4
2
-2V
-0.4V
-0.2V
0V
+0.6V
0
35
36
37
38
39
40
41
42
43
44
RF Frequency (GHz)
Main Characteristics
Tamb.= +25°C
Symbol
Parameter
F_RF
RF frequency range
F_OL
LO frequency range
F_IF
IF frequency range
G
Conversion gain without attenuation
Min Typ Max Unit
37
40 GHz
17.5
21.0 GHz
DC
3.5 GHz
13
dB
Ref. : DSCHR38941192 - 11 Jul 11
1/12
Specifications subject to change without notice
United Monolithic Semiconductors S.A.S.
Route Départementale 128 - BP46 - 91401 Orsay Cedex France
Tel.: [phone] - Fax: [phone]