Support for 75ohm digital step attenuator ideal for CATV

RFMW Ltd has announced design and sales support for Peregrine Semiconductor’s PE4314, a 75ohm digital step attenuator spanning a frequency range of 1MHz to 2500MHz. The device offers 6-bit resolution with 0.5dB steps providing 31.5dB attenuation range. Its low distortion characteristics and 75ohm circuit optimisation make it ideal for CATV and multi-carrier applications. This DSA features Peregrine’s glitch-less technology reducing attenuation state transitions to <0.5dB, reducing software overhead and cost. Supporting parallel and serial programming interfaces, the device allows flexible programming within AGC loops and operating from a 3.3V supply requiring only 130uA of current. This DSA helps reduce power consumption compared to similar competitive parts. The 20-lead, 4mm x 4mm QFN package is pin-compatible with existing Peregrine DSAs.