HMC128G8
v02.1105
GaAs MMIC SMT DOUBLE-
BALANCED MIXER, 1.8 - 5 GHz
Typical Applications
Features
The HMC128G8 is ideal for:
• Base Station
Conversion Loss: 10 dB
LO to RF and IF Isolation: >30 dB
High Third-Order Intercept: +18 dB
• MMDS
7
• WirelessLAN
• Wireless Local Loop
Functional Diagram
General Description
The HMC128G8 is a miniature double-balanced mixer
in a hermetic surface mount package that can be used
as an upconverter or downconverter. The device is
a passive diode/balun type mixer with high dynamic
range. Noise figure is essentially equal to the conver-
sion loss. The mixer can handle larger signal levels
than most active mixers due to the high third order
intercept. MMIC implementation provides exceptional
balance in the circuit resulting in high LO/RF and LO/
IF isolations.
Electrical Specifications, TA = +25° C, LO Drive = +15 dBm
Parameter
Min.
Typ.
Max.
Units
Frequency Range, RF & LO
Frequency Range, IF
Conversion Loss
Noise Figure (SSB)
LO to RF Isolation
LO to IF Isolation
IP3 (Input)
1.8 - 5.0
DC - 2
10
GHz
GHz
dB
12
12
10
dB
28
20
13
35
40
dB
30
dB
18
dBm
dBm
IP2 (Input)
40
1 dB Gain Compression (Input)
5
10
dBm
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
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