HMC259_01 Datasheet, PDF (1/6 Pages) Hittite Microwave Corporation – GaAs MMIC SUB-HARMONICALLY PUMPED MIXER, 28 - 40 GHz

v01.0801
MICROWAVE CORPORATION
HMC259
GaAs MMIC SUB-HARMONICALLY
PUMPED MIXER, 28 - 40 GHz
Typical Applications
The HMC259 is ideal for:
• Point to Point Radios
• LMDS
• SATCOM
Functional Diagram
5
Features
Sub-Harmonically Pumped (x2) LO
High 2LO/RF Isolation: >35 dB
Small Size: 1.24mm x 1.55mm
General Description
The HMC259 chip is a broadband sub-harmoni-
cally pumped (x2) balanced MMIC passive mixer
which can be used as an upconverter or down-
converter. The chip utilizes a GaAs MESFET
process resulting in a small overall chip area of
1.9mm². This chip has a very wide IF bandwidth
of DC-13 GHz. The 2LO to RF isolation is excel-
lent eliminating the need for additional filtering.
All data is with the chip in a 50 ohm test fixture
connected via 0.025mm (1 mil) diameter wire
bonds of minimal length <0.31mm (<12 mils).
This device is a much smaller and more reliable
replacement to hybrid diode mixer designs.
Electrical Specifications, T_A = +25° C, LO Drive = +15 dBm
Parameter
IF = 1 GHz
IF = 1 GHz
Units
Min.
Typ.
Max.
Min.
Typ.
Max.
Frequency Range, RF
28 - 40
36 - 40
GHz
Frequency Range, LO
14 - 20
18 - 20
GHz
Frequency Range, IF
DC - 12
DC - 4
GHz
Conversion Loss
14
17
12
15
dB
Noise Figure (SSB)
14
17
12
15
dB
2LO to RF Isolation
28
35
40
50
dB
2LO to IF Isolation
58
65
63
68
dB
RF to IF Isolation
LO to IF Isolation
IP3 (Input)
1 dB Compression (Input)
25
30
10
15
2
5
-7
-4
25
32
12
17
2
6
-7
-1
dB
dB
dBm
dBm
*Unless otherwise noted, all measurements performed as downconverter, IF= 1 GHz.
5 - 120
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: [phone] Fax: [phone]
Visit us at www.hittite.com, or Email at [e-mail]