The PE43404 is a high linearity, 4-bit RF Digital Step Attenuator (DSA) covering a 15 dB attenuation range in 1.0 dB steps. This 75-ohm RF DSA provides both parallel (latched or direct mode) and serial CMOS control interface, operates on a single 3-volt supply and maintains high attenuation accuracy over frequency and temperature. It also has a unique control interface that allows the user to select an initial attenuation state at power-up. The PE43404 exhibits very low insertion loss and low power consumption. This functionality is delivered in a 20-lead 4x4 mm QFN footprint.
Attenuation: 1.0dB steps to 15dB
Flexible parallel and serial programming interfaces: Parallel latched or direct mode
High attenuation accuracy and linearity over temperature and frequency
Unique power-up state selection
Very low power consumption
Single-supply operation
Positive CMOS control logic
75Ω impedance
Packaged in a 20 lead 4*4mm QFN