HMC256_07 Datasheet, PDF (1/5 Pages) Hittite Microwave Corporation – GaAs MMIC I/Q MIXER 5.9 - 12 GHz

v03.1007
Typical Applications
The HMC256 is ideal for:
• Microwave Radio & VSAT
3
• Test Instrumentation
• Military Radios Radar & ECM
• Space
Functional Diagram
HMC256
GaAs MMIC I/Q MIXER
5.9 - 12 GHz
Features
High Image Rejection: >30 dB
Input IP3: +18 dB
Wideband IF: DC to 1.5 GHz
Die Size: 1.6 x 1.3 x 0.1 mm
General Description
The HMC256 chip is a compact, 2.08 mm², I/Q Mixer
MMIC which can be used as an Image Reject Mixer
(IRM) or Single Sideband (SSB) upconverter. The
chip utilizes two standard Hittite double-balanced
mixer cells and a Lange Coupler realized in GaAs
MESFET technology. 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 <0.51 mm (<20
mils). A low frequency quadrature hybrid was used
to interface the MMIC IF ports to a 120 MHz IF USB
output. This provides an example of the I/Q Mixer
in an IRM application. The IF may be used from DC
to 1.5 GHz. This I/Q Mixer is a more reliable, much
smaller replacement to hybrid drop-in style I/Q Mixer
assemblies.
3-2
Electrical Specifications, T_A = +25° C, As an IRM
Parameter
IF = 70 - 200 MHz
LO = +18 dBm
Min.
Typ.
Max.
Frequency Range, RF
5.9 - 12
Frequency Range, LO
Frequency Range, IF
Conversion Loss
Noise Figure (SSB)
Image Rejection (IR)
LO to RF Isolation
LO to IF Isolation
RF to IF Isolation
IP3 (Input)
1 dB Gain Compression (Input)
5.7 - 12
DC - 1.5
8
10.5
8
10.5
24
32
22
30
27
35
24
30
18
5
IF = 70 - 200 MHz
LO = +15 dBm
Min.
Typ.
Max.
7.1 - 11.7
6.9 - 11.7
DC - 1.5
8
10.5
8
10.5
20
30
22
30
27
35
24
30
17
5
Units
GHz
GHz
GHz
dB
dB
dB
dB
dB
dB
dBm
dBm
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: [phone] Fax: [phone]
Order On-line at www.hittite.com