HMC346

ATTENUATORS - ANALOG - CHIP v04.1008 1 Typical Applications This attenuator is ideal for use as a VVA for DC - 20 GHz applications: Point-to-Point Radio VSAT Radio HMC346 GaAs MMIC VOLTAGE-VARIABLE ATTENUATOR, DC - 20 GHz Features Wide Bandwidth: DC - 20 GHz Low Phase Shift vs. Attenuation 32 dB Attenuation Range Die Size: 0.85 x 0.85 x 0.1 mm Functional Diagram General Description The HMC346 die is an absorptive Voltage Variable Attenuator (VVA) operating from DC - 20 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. For plastic packaged version, see the HMC346MS8G which operates from DC - 8 GHz. Electrical Specifications, TA = +25° C, 50 ohm system Parameter Min. Typ. Max. Units Insertion Loss DC - 12 GHz: DC - 20 GHz: 1.7 2.3 dB 2.2 2.8 dB Attenuation Range DC - 12 GHz: 27 32 dB DC - 20 GHz: 22 25 dB Return Loss Switching Characteristics Input Power for 0.25 dB Compression (0.5 - 20 GHz) Input Third Order Intercept (0.5 - 20 GHz) (Two-tone Input Power = -8 dBm Each Tone) DC - 12 GHz: 6 10 12 - 20 GHz: 10 15 tRISE, tFALL (10/90% RF): 2 tON, tOFF (50% CTL to 10/90% RF): 8 Min. Atten: +8 Atten. >2 dB: +4 Min. Atten: +25 Atten. >2 dB: +10 dB dB ns ns dBm dBm dBm dBm 1-2 Irrliniecgfseohpntrsomsenoasftiisibt...