HMC346G8

v03.1008 HMC346G8 GaAs MMIC HERMETIC SMT VOLTAGEVARIABLE ATTENUATOR, DC - 8 GHz 5 Typical Applications The HMC346G8 is ideal for: Basestation Infrastructure Fiber Optics & Broadband Telecom Microwave Radio & VSAT Military Radios, Radar, & ECM Test Instrumentation Features Wide Bandwidth: DC - 8 GHz Low Phase Shift vs. Attenuation 30 dB Attenuation Range 8 Lead Hermetic SMT Package ATTENUATORS - SMT Functional Diagram General Description The HMC346G8 is an absorptive Voltage Variable Attenuator (VVA) in an 8 lead glass / metal (hermetic) surface-mount package operating from DC 8 GHz. It features an on-chip reference attenuator for use with an external op-amp to provide simple single voltage attenuation control, 0 to -3V. The device is ideal in designs where an analog DC control signal must control RF signal levels over a 30 dB amplitude range. Applications include AGC circuits and temperature compensation of multiple gain stages in microwave radios and test instrumentation. Electrical Specifications, TA = +25° C, 50 ohm system Parameter Min Typical Max Insertion Loss DC - 6 GHz DC - 8 GHz 2.0 3.0 2.0 3.5 Attenuation Range DC - 8 GHz 30 Return Loss DC - 8 GHz 7 10 Switching Characteristics tRISE, tFALL (10/90% RF) tON, tOFF (50% CTL to 10/90% RF) 2 8 Input Power for 0.25 dB Compression (0.5 - 8 GHz) Input Third Order Intercept (0.5 - 8 GHz) (Two-tone Input Power = -8 dBm Each Tone) Min. Atten. +8 -2 Atten. >2 dB Min. Atten. +25 Atten....