The LA01-001 from Comtech PST is a 4-Bit Digitally-Controlled Variable Attenuator that operates from 400 to 500 MHz. It has an attenuation range from 0 to 60 dB with 6 dB steps, features a TTL compatible driver, and has a switching speed of under 1 μs. The attenuator can handle up to 20 dBm of RF power, has an insertion loss of less than 1.4 dB, and has a VSWR of 1.4:1. It has an amplitude balance of ±0.5 dB and a phase balance of ±3°. This 50-ohm attenuator requires a DC supply of +5/-15 V and consumes less than 500 mA of current. It is available in a module that measures 5.90 x 2.50 x 1.35 inches with SMA connectors.
