HMC346AMS8GE

GaAs MMIC SMT VOLTAGE-VARIABLE  ATTENUATOR, DC - 8 GHz

General Description HMC346AMS8GE

The HMC346AMS8GE is absorptive Voltage Variable  Attenuators (VVA) in 8 lead surface-mount packages  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  -5V. 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 point-to-point and VSAT radios.

Features HMC346AMS8GE

Wide Bandwidth: DC - 8 GHz

Low Phase Shift vs. Attenuation

32 dB Attenuation Range

Typical Applications 

This attenuator is ideal for use as a VVA

for DC - 8 GHz applications:

• Point-to-Point Radio

• VSAT Radio

Electrical Specifications, TA = +25° C, 50 Ohm system

Parameter Min Typical Max Units  Insertion Loss DC - 8 GHz 2.1 3.1 dB  Attenuation Range DC - 8 GHz 23 28 dB  Return Loss DC - 8 GHz 5 10 dB  Switching Characteristics tRISE, tFALL (10/90% RF)  tON, tOFF (50% CTL to 10/90% RF)  8  16  ns  ns  Input Power for 0.25 dB Compression (0.5 - 8 GHz) Min. Atten.  Atten. >2 dB  +8  +4  dBm  dBm  Input Third Order Intercept (0.5 - 8 GHz)  (Two-tone Input Power = -8 dBm Each Tone)  Min. Atten.  Atten. >2 dB  +30  +10  dBm  dBm

 

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