AFF-20A-250

AFF-20A-250 ELECTRONIC ATTENUATOR 10 to 500 MHz / 0 to 20 dB / Multi-Octave / Optimized for Minimim Phase Shift; 3 Typ. / Flatpack PRINCIPAL SPECIFICATIONS Operating Frequency Range, MHz 10 - 100 100 - 500 A-Size Flatpack Outline GENERAL SPECIFICATIONS Operating Bandwidth:10 to 500 MHz Impedance: 50 Ω nom. VSWR: 1.5:1 typ., 2.0:1 max. Bias: +15 VDC @ 1 mA nom. Control Voltage: 0 to +15 VDC Control Current: 0 to 10 mA Control Bandwidth: DC to 100 kHz Input Intercept Point: +21 dB nom. (2 Tone, 3rd Order, @ Input of -- 10 dBm) Attenuation Phase Range, Shift, dB, Min. Typ. Max. 0 - 25 0 - 20 3° 3° 6° 6° Insertion Loss, Max. @ Vc=15V 3.0 dB 3.0 dB Switching Time: Weight Operating Temp: 20 µs typ. (Step Input, 50 Ω Source Impedance) 0.1 oz (2.8 grams) -- 20° to +85°C Typical Performance NOTES: 1. Tolerance on 3 place decimals ± .010(.25) except as noted. 2. Dimensions in inches over millimeters. 3. Dimensions marked with * apply only at body. 4. All unmarked terminals are ground. General Notes: 1. The AFF-20A-250 is a constant impedance, voltage controlled, PIN diode, π network attenuator with compensated circuits to provide constant phase. This unit covers 10 to 500 MHz using electronic voltage control to adjust attenuation. Similar attenuator Model AEF-35A-500 is available for applications not requiring minimal phase shift with change in attenuation 2. Screened versions with extended reliability components are available on request for Hi-Rel applications. 26Apr96 For further information contact MERRIMAC / 41 Fairfield Pl., West Caldwell, NJ, 07006 / 973-575-1300 / FAX 973-575-0531