UltraCMOS® RF Digital Step Attenuator

The PE4312 is a 50Ω, HaRP™ technology-enhanced 6-bit RF digital step attenuator (DSA) designed for use in 3G/4G wireless infrastructure and other high performance RF applications.

This DSA is a pin-compatible upgraded version of the PE4302 with higher linearity, improved attenuation accuracy and faster switching speed. An integrated digital control interface supports both serial and parallel programming of the attenuation, including the capability to program an initial attenuation state at power-up.

Covering a 31.5 dB attenuation range in 0.5 dB steps, it maintains high linearity and low power consumption from 1 MHz through 4 GHz. PE4312 also features an external negative supply option, and is offered in a 20-lead 4 × 4 mm QFN package. In addition, no external blocking capacitors are required if 0 VDC is present on the RF ports.

UltraCMOS® RF Digital Step Attenuator

PE4312


The PE4312 is a 50Ω, HaRP™ technology-enhanced 6-bit RF digital step attenuator (DSA) designed for use in 3G/4G wireless infrastructure and other high performance RF applications.

This DSA is a pin-compatible upgraded version of the PE4302 with higher linearity, improved attenuation accuracy and faster switching speed. An integrated digital control interface supports both serial and parallel programming of the attenuation, including the capability to program an initial attenuation state at power-up.

Covering a 31.5 dB attenuation range in 0.5 dB steps, it maintains high linearity and low power consumption from 1 MHz through 4 GHz. PE4312 also features an external negative supply option, and is offered in a 20-lead 4 × 4 mm QFN package. In addition, no external blocking capacitors are required if 0 VDC is present on the RF ports.

Industry-Leading Product

Specifications

Description6-bit; 64 states
Min Freq.1 MHz
Max Freq.4000 MHz
Max Typ. IL (dB)2.10
Min Typ. IL (dB)1.30
IIP3 (dBm)59
Attn Range (dB)31.50
Attn Step (dB)0.5
InterfaceParallel, Serial
Bits6
Package20L QFN
Package (mm)4x4

About Product

Key Features

      Attenuation: 0.5 dB steps to 31.5 dB
      Safe attenuation state transitions
      Monotonicity: 0.5 dB up to 4 GHz
      High attenuation accuracy
      High linearity: +59 dBm IIP3
      Wide power supply range of 2.3–5.5V
      1.8V control logic-compatible
      105°C operating temperature
      Programming modes: Direct parallel, latched parallel and serial
      Unique power-up state selection
      Pin-compatible to PE4302, PE4305 and PE4306
      Package—20-lead 4×4 mm QFN

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