Switch Bit Attenuator

PMI Model No. SAA-500M18G-20DB-SFF is a switch bit attenuator that operates over the frequency range of 500 MHz to 18 GHz. This model provides 20 dB of attenuation when a TTL "0" is applied and less than 3 dB of insertion loss when TTL "1" is applied. This attenuator switches between states in less than 100 ns and maintains a maximum VSWR of 2.0:1 into a 50-ohm impedance. ±5 VDC is required to power the attenuator and it is supplied in a housing measuring 1.0" x 0.7" x 0.35". Other frequency ranges and attenuation values are available.

Product Specifications

General Parameters:
Status: Active
Frequency Range: 0.5 to 18 GHz
Frequency Min: 0.5 GHz
Frequency Max: 18 GHz
Insertion Loss: 3.0 dB Max
Attenuation Range: 20 ± 2.75 dB
Digital Control: Single Bit
VSWR: 2.0:1 Max
Operating Input Power: +20 dBm CW Max
Swiching Time: 100 ns Max
TTL Control: "1" = Insertion Loss
"0" = 20 dB Attenuation
Power Supply: +5 V, 40 mA Typ
-5 V, 40 mA Typ
Finish: Painted Gray
Connectors: SMA (F)
Size: 1.0" x 0.70" x 0.35"
Environmental Ratings:
Operating Temperature: -20 ºC to +70 ºC
Non-Operating Temperature: -65 ºC to +125 ºC
Humidity: MIL-STD-202F, Method 103B Cond. B
Shock: MIL-STD-202F, Method 213B Cond. B
Vibration: MIL-STD-202F, Method 204D Cond. B
Altitude: MIL-STD-202F, Method 105C Cond. B
Temperature Cycle: MIL-STD-202F, Method 107D Cond. A