HMC329
v04.1007
GaAs MMIC DOUBLE-BALANCED
MIXER, 25 - 40 GHz
Typical Applications
The HMC329 is ideal for:
• LMDS
Features
Passive: No DC Bias Required
Input IP3: +19 dBm
• Microwave Point-to-Point Radios
• SATCOM
LO/RF Isolation: 42 dB
Small Size: 0.85 x 0.55 x 0.1 mm
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Functional Diagram
General Description
The HMC329 chip is a miniature passive double
balanced mixer which can be used as an upconverter
or downconverter from 25-40 GHz in a small chip
area of 0.85 x 0.55 mm. Excellent isolations are
provided by on-chip baluns, and the chip requires no
external components and no DC bias. Measurements
were made with the chip mounted and ribbon bonded
into in a 50-ohm microstrip test fixture that contains
5-mil alumina substrates between the chip and
K-connectors. Measured data includes the parasitic
effects of the assembly. RF connections to the chip
were made with 0.076 mm (3-mil) ribbon bond with
minimal length <0.31mm (<12 mil).
Electrical Specifications, TA = +25° C
LO = +13 dBm, IF = 1 GHz
Units
Parameter
Min.
Typ.
25 - 40
DC - 8
Max.
Frequency Range, RF & LO
Frequency Range, IF
GHz
GHz
Conversion Loss
9.5
11.5
11.5
dB
Noise Figure (SSB)
9.5
42
35
28
19
55
11
dB
dB
LO to RF Isolation
38
25
21
16
45
8
LO to IF Isolation
dB
RF to IF Isolation
dB
IP3 (Input)
dBm
dBm
dBm
IP2 (Input)
1 dB Compression (Input)
* Unless otherwise noted, all measurements performed as downconverter, IF= 1 GHz.
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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