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UltraCMOS® RF Digital Step Attenuator

UltraCMOS® RF Digital Step Attenuator

PE43665

EAR99
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END OF LIFE (EOL)

This product is currently going through the EOL process. It has a last-time buy date of September 27, 2026 and a final ship date of March 27, 2027. Replace with PE4314. For more information, please contact your local sales representative.

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.

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Industry-Leading Product

Specifications

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

EOL Notice

ECCNEAR99

Lifecycle: Last Time Buy

About Product

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.

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Product Lifecycle Stages

Pre Release

This product is in early production and may still be undergoing engineering validation; availability is limited and subject to change.

In Production

This product has completed validation and is recommended for new and existing designs.

Not Recommended for New Design (NRND) 

This product is in production but is not recommended for new designs.

Last Time Buy

This product is being phased out and will soon be obsolete; please contact sales for final availability and replacement options.

Obsolete

This product is no longer offered. Please contact sales for replacement options.

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