The PE43665 is a 75Ω, high-linearity, 6-bit RF digital step attenuator (DSA) covering a 31.5 dB attenuation range in 0.5 dB steps. The PE43665 provides both a parallel (latched or direct mode) and serial CMOS control interface, operates on a single 3V 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 PE43665 exhibits very low insertion loss and low power consumption. This functionality is delivered in a 4 × 4 mm QFN footprint.

Specifications

Description6-bit; 64 states
Min Freq.1 MHz
Max Freq.2000 MHz
Max Typ. IL (dB)1.8
Min Typ. IL (dB)1.4
IIP3 (dBm)52
Attn Range (dB)0.00–31.50
Attn Step (dB)0.5
InterfaceParallel (Latched, Direct)
Bits6
Attenuation Accuracy (dB @ 1 GHz)±(0.15 + 4% of setting)
Switching Time1 µs
ESD HBM (V)500
Package (mm)4x4
Package20L QFN

Key Features

      75Ω impedance
      Attenuation: 0.5 dB steps to 31.5 dB
      Low distortion for CATV and multi-carrier applications
      Flexible parallel and serial programming interfaces
      Unique power-up state selection
      Positive CMOS control logic
      High attenuation accuracy and linearity over temperature and frequency
      Very low power consumption
      Single-supply operation
      Package: 20-lead 4 × 4 mm QFN

Products displayed on this site are protected under one or more of the following U.S. Patents.

Markets

Power Management

Power Management

RF Mixers & Limiters

Front End Modules

RF Tx/Rx Modules

RF Phase & Amplitude Control

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