General Description
The HMC321LP4 & HMC321LP4E are broadband nonrefl ective GaAs MESFET SP8T switches in low cost leadless surface mount packages. Covering DC to 8 GHz, this switch offers high isolation and low insertion loss. This switch also includes an on board binary decoder circuit which reduces the required logic control lines to three. The switch operates using a positive control voltage of 0/+5 volts, and requires a fi xed bias of +5v. This switch is suitable for usage in 50-Ohm or 75-Ohm systems.

Features
   Broadband Performance: DC - 8 GHz
   High Isolation: >30 dB@ 6 GHz
   Low Insertion Loss: 2.5 dB@ 6 GHz
   Integrated Positve Supply 3:8 TTL Decoder
   4x4 mm SMT Package

Typical Applications
This switch is suitable for usage in DC - 8.0 GHz 50-Ohm or 75-Ohm systems:
• Broadband
• Fiber Optics
• Switched Filter Banks
• Wireless below 8 GHz