General Description

The HMC557 is a passive double balanced mixer that can be used as an upconverter or downconverter between 2.5 and 7 GHz. The miniature monolithic mixer is fabricated in a GaAs MESFET process, and requires no external components or matching circuitry. The HMC557 operates with LO drive levels as low as +9 dBm and provides excellent LO to RF and LO to IF isolation due to optimized balun structures. Measurements were made with the chip mounted into in a 50 ohm test fi xture and includes the parasitic effects of wire bond assembly. Connections were made with a 1 mil wire bond with minimal length (

Features

High LO/RF Isolation: 48 dB

Wide IF Bandwidth: DC - 3 GHz

Passive Double Balanced Topology

Low Conversion Loss: 7 dB

Small Size: 1.02 x 0.94 x 0.1 mm

Typical Applications

The HMC557 is ideal for:

• WiMAX & Fixed Wireless

• Microwave Radio

• Military & Space

• Communications, Radar & EW

• Test Equipment & Sensors