v01.0701
MICROWAVE CORPORATION
HMC265
GaAs MMIC SUB-HARMONICALLY
PUMPED DOWNCONVERTER, 20 - 32 GHz
Typical Applications
The HMC265 is ideal for:
• Microwave Point to Point Radios
• LMDS
• SATCOM
Features
Integrated LO Amplifier: -4 dBm Input
Sub-Harmonically Pumped (x2) LO
Integrated IF Amplifier: 3 dB Gain
Small Size: 1.32mm x 1.32mm
Functional Diagram
General Description
The HMC265 chip is a sub-harmonically pumped
(x2) MMIC downconverter with integrated LO & IF
amplifiers. The chip utilizes a GaAs PHEMT tech-
nology that results in a small overall chip area of
1.74 mm
2
. The 2LO to RF isolation is excellent
eliminating the need for additional filtering. The
LO amplifier is a single bias (+3V to +4V) two
stage design with only -4 dBm nominal drive
requirement. All data is with the chip in a 50
ohm test fixture connected via 0.025 mm (1 mil)
diameter wire bonds of minimal length <0.31 mm
(<12 mils). This downconverter IC is an excellent,
smaller, and more reliable replacement to hybrid
diode based downconverter MMIC assemblies.
5
MIXERS - CHIP
Electrical Specifications,
T
A
= +25° C, LO Drive = -4 dBm
Parameter
Min.
Frequency Range, RF
Frequency Range, LO
Frequency Range, IF
Conversion Gain (RF to IF)
Noise Figure (SSB)
2LO to RF Isolation
2LO to IF Isolation
IP3 (Input)
1 dB Compression (Input)
Supply Current (Idd)
17
40
2
-5
-2
IF = 1 GHz
Vdd = +4V
Typ.
20 - 32
10 - 16
0.7 - 3.0
3
13
20 ~ 40
50 ~ 60
10
2
50
28
45
9
-2
7
-2
Max.
Min.
IF = 1 GHz
Vdd = +4V
Typ.
27 - 30
13.5 - 15
0.7 - 3.0
2
13
35
55
13
2
50
5
Max.
GHz
GHz
GHz
dB
dB
dB
dB
dBm
dBm
mA
Units
5 - 58
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
HITTITE [ HITTITE MICROWAVE CORPORATION ]
