5.5 GHz to 14 GHz,

GaAs MMIC Fundamental Mixer

Data Sheet

HMC558A

Rev. 0

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FEATURES

Conversion loss: 7.5 dB typical at 5.5 GHz to 10 GHz

Local oscillator (LO) to radio frequency (RF) isolation: 45 dB

typical at 5.5 GHz to 10 GHz

LO to intermediate frequency (IF) isolation: 45 dB typical at

10 GHz to 14 GHz

Input third-order intercept (IIP3): 21 dBm typical at 10 GHz

to 14 GHz

Input P1dB: 11.5 dBm typical at 10 GHz to 14 GHz

Input second-order intercept (IIP2): 55 dBm typical at 10 GHz

to 14 GHz

Passive double-balanced topology

Wide IF bandwidth: dc to 6 GHz

12-lead ceramic leadless chip carrier package

APPLICATIONS

Point to point microwave radios

Point to multipoint radios

Military end use

Instrumentation, automatic test equipment (ATE), and sensors

FUNCTIONAL BLOCK DIAGRAM

RF

HMC558A

LO

IF

Figure 1.

GENERAL DESCRIPTION

The HMC558A is a general-purpose, double-balanced mixer in a

leadless RoHS compliant SMT package that can be used as an

upconverter or downconverter between 5.5 GHz and 14 GHz.

This mixer is fabricated in a gallium arsenide (GaAs) metal semi-

conductor field effect transistor (MESFET) process, and requires

no external components or matching circuitry.

The HMC558A provides excellent LO to RF and LO to IF isolation

due to optimized balun structures, and operates with LO drive

levels as low as 9 dBm. The RoHS compliant HMC558A eliminates

the need for wire bonding, and is compatible with high volume

surface-mount manufacturing techniques.