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RF Attenuators

RF Attenuators

Key Features

  • High linearity, fast switching time with wide bandwidth
  • Best-in-class attenuation error with fine attenuation steps
  • Monolithic CMOS solution that integrates RF, analog and digital
  • Excellent ESD protection and reliability

RF Product Catalog

View the pSemi 2025–2026 Product Catalog to see our complete RF product portfolio.

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Glitchless RF Digital Step Attenuators

ProductStoreDatasheetDescriptionMin Freq.Max Freq.Min Typ. IL (dB)Max Typ. IL (dB)IIP3 (dBm)Attn Range (dB)Attn Step (dB)InterfaceBitsPackagePackage (mm)Attenuation Accuracy (dB @ 1 GHz)Switching TimeESD HBM (V)
PE43711
7-bit; 128 states9 kHz6 GHz1.32.4570.00–31.750.25/0.5/1.0Parallel (Latched, Direct), Serial724L QFN4x4±(0.15 + 1.5% of setting)275 ns3000
PE43712
7-bit; 128 states9 kHz6 GHz1.32.45570.00–31.750.25/0.5/1.0Parallel (latched, direct); Serial-addressable732L QFN5x5±(0.20 + 1.5% of setting)275 ns3000
PE43713
7-bit; 128 states9 kHz6 GHz1.32.45570.00–31.750.25/0.5/1.0Parallel (latched, direct); Serial-addressable732L QFN5x5±(0.20 + 1.5% of setting)275 ns3000

75Ω Wired Broadband RF Digital Step Attenuators

ProductStoreDatasheetDescriptionMin Freq.Max Freq.Min Typ. IL (dB)Max Typ. IL (dB)IIP3 (dBm)Attn Range (dB)Attn Step (dB)InterfaceBitsPackagePackage (mm)Attenuation Accuracy (dB @ 1 GHz)Switching TimeESD HBM (V)
PE4314
6-bit; 64 states1 MHz2500 MHz11.5580.00–31.500.5Parallel (latched; direct); Serial620L QFN4x4±(0.15 + 3% of setting)370 ns1500
PE43665
6-bit; 64 states1 MHz2000 MHz1.41.8520.00–31.500.5Parallel (latched; direct); Serial620L QFN4x4±(0.15 + 4% of setting)1 ns500

General-purpose RF Digital Step Attenuators

ProductStoreDatasheetDescriptionMin Freq.Max Freq.Min Typ. IL (dB)Max Typ. IL (dB)IIP3 (dBm)Attn Range (dB)Attn Step (dB)InterfaceBitsPackagePackage (mm)Attenuation Accuracy (dB @ 1 GHz)Switching TimeESD HBM (V)
PE4312
6-bit; 64 states1 MHz4000 MHz1.32.1590–31.500.5Parallel (Latched, Direct), Serial620L QFN4x4±(0.15 + 2% of setting)500 ns1500
PE43205
2-bit; 4 states35 MHz6 GHz0.51.05610.00–18.006Parallel212L QFN3x30.129 ns2000
PE43508
6-bit; 64 states9 kHz55 GHz2.25.9500.00–31.500.5/1.0Parallel (Latched, Direct), Serial, Serial Addressable6Flip Chip₋'+(1.00+4.5% of setting) / -1330 ns1000
PE43610
6-bit; 64 states9 kHz13 GHz1.63500.00–31.500.5/1.0Parallel (Latched, Direct), Serial, Serial Addressable624L LGA4x4'+(1.00+4.5% of setting) / -1330 ns1000
PE43614
6-bit; 64 states9 kHz45 GHz35.8500.00–31.500.5/1.0Parallel (Latched, Direct), Serial, Serial Addressable624L LGA4x4'+(1.00+4.5% of setting) / -1330 ns1000
PE43620
2-bit; 4 states50 MHz3000 MHz0.60.7610–18.06/12/2018Parallel212L QFN3x3±(–0.25/+0.40 of setting)30 ns2000
PE43650
5-bit; 32 states9 kHz6 GHz2.429580.00–15.500.5Parallel (Latched, Direct), Serial524L QFN4x4±(0.3/+0.30 of setting)4000 ns500
PE43670
7-bit; 128 states9 kHz4000 MHz1.92.4590–31.750.25Parallel (Latched, Direct), Serial Addressable732L QFN5x5±(0.2/+0.15 of setting)4000 ns500
PE43704
7-bit; 128 states9 kHz8 GHz1.32.9610.00–31.750.25/0.5/1.0Parallel (Latched, Direct), Serial, Serial Addressable732L QFN5x5'+(0.15 + 4.5% of setting), –(0.1 + 2% of setting)1100 ns1500
PE43705
7-bit; 128 states50 MHz8 GHz1.32.4580.00–31.750.25/0.5/1.0Parallel (Latched, Direct), Serial, Serial Addressable732L QFN5x5'+(0.15 + 1.5% of setting), –(0.1 + 1% of setting)1000 ns1500

Markets

  • Best-in-class RF performance
  • Optimal form factors with high levels of integration
  • Proven track record in top-tier smartphones
  • Active member of 3GPP and other industry affiliations
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Power Management

  • 5G antenna-integrated module (AiM) co-designed with Murata
  • High-efficiency 26 GHz, 28 GHz and 39 GHz beamforming front ends supporting bands n257, n258, n261 and n260
  • Advanced, highly integrated package and antenna technology
  • Modular AiM approach for building scalable antenna arrays
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Markets

  • Best-in-class RF performance
  • Optimal form factors with high levels of integration
  • Proven track record in top-tier smartphones
  • Active member of 3GPP and other industry affiliations

  • High Linearity RF Switches

    Industry-leading linearity and RF performance
    HaRP™ technology enhancement reduces gate lag and insertion loss drift
    Monolithic CMOS solution that integrates RF, analog and digital
    Best-in-class ESD and reliability

  • High Isolation RF Switches

    Industry-leading isolation and RF performance
    HaRP™ technology enhancement reduces gate lag and insertion loss drift
    Monolithic CMOS solution that integrates RF, analog and digital
    Best-in-class ESD and reliability

  • Low Insertion Loss RF Switches

    Industry-leading insertion loss and RF performance
    HaRP™ technology enhancement reduces gate lag and insertion loss drift
    Monolithic CMOS solution that integrates RF, analog and digital
    Best-in-class ESD and reliability

  • Antenna Tuning Switches

    Industry-leading RF power handling and ruggedness
    Best-in-class harmonic and linearity
    Small form factor with robust ESD and reliability

  • 75Ω Wired Broadband Switches

    Unmatched linearity performance for DOCSIS 3.1
    HaRP™ technology enhancement reduces gate lag and insertion loss drift
    Monolithic CMOS solution that integrates RF, analog and digital
    Best-in-class ESD ratings and reliability

  • Broadband RF Switches

    Wideband support with a frequency range from 0 Hz to 67 GHz
    Industry-leading insertion loss, isolation, linearity and settling time
    HaRP™ technology enhancement reduces gate lag and insertion loss drift
    Best-in-class ESD and reliability

  • High Power Switches

    Industry-leading power handling and RF performance
    HaRP™ technology enhancement reduces gate lag and insertion loss drift
    Monolithic CMOS solution that integrates RF, analog and digital
    Best-in-class ESD and reliability

  • Automotive Switches

    AEC-Q100 Grade 2-certified supporting temperatures up to +105°C
    HaRP™ technology enhancement reduces gate lag and insertion loss drift
    Monolithic CMOS solution that integrates RF, analog and digital
    Best-in-class ESD and reliability

  • Extended Temperature RF Switches

    Wide temperature range support from -55°C to +125°C
    HaRP™ technology enhancement reduces gate lag and insertion loss drift
    Monolithic CMOS solution that integrates RF, analog and digital
    Best-in-class ESD and reliability

  • 75Ω Wired Broadband RF Digital Step Attenuators

    High linearity, fast switching time with wide bandwidth
    Best-in-class attenuation error with fine attenuation steps
    Monolithic CMOS solution that integrates RF, analog and digital
    Excellent ESD protection and reliability

  • Glitchless RF Digital Step Attenuators

    High linearity, fast switching time with wide bandwidth
    Best-in-class attenuation error with fine attenuation steps
    Monolithic CMOS solution that integrates RF, analog and digital
    Excellent ESD protection and reliability

  • General-purpose RF Digital Step Attenuators

    High linearity, fast switching time with wide bandwidth
    Best-in-class attenuation error with fine attenuation steps
    Monolithic CMOS solution that integrates RF, analog and digital
    Excellent ESD protection and reliability

  • 2.4 GHz IoT FEMs

    Industry-leading monolithic Wi-Fi RF front-end solutions
    High linearity performance for Wi-Fi 6 and W-Fi 6E
    Compact form factors integrating high-performance RF, analog and digital
    Best-in-class ESD and reliability

  • Phase Shifters

    Ideal solutions for optimizing transmission phase angle
    Low root-mean-square (RMS) phase and amplitude error with fine phase resolution
    Digital control interface with parallel and serial programming options
    Best-in-class ESD and reliability

  • Monolithic Phase & Amplitude Controllers (MPACs)

    Reliable phase and amplitude control for next-generation communications
    Monolithic CMOS solution that integrates RF, analog and digital
    Integrated solution for Doherty power amplifier optimization (MPAC–Doherty)

  • Digital Tunable Capacitors (DTCs)

    Small form factor with high Q
    Monolithically integrated impedance tuning solution
    Wide-band tuning coverage, minimum mismatch losses, high linearity and fast switching speed
    Best-in-class ESD and reliability

  • Power Limiters

    Highly integrated solutions, smaller and more reliable than PIN-diode solutions
    Adjustable threshold control for maximum design flexibility
    High power handling and linearity required for wide-dynamic-range designs
    Fast response and recovery times for instantaneous protection and rapid return

  • Prescalers

    Exceptional performance with high-frequency support up to 13.5 GHz
    Low phase noise performance and low power consumption solutions
    Bare-die solutions for a wide variety of compact high-performance applications
    Best-in-class ESD and reliability

  • Mixers

    Broadband quad MOSFET array cores for high performance
    Industry-leading linearity, isolation and low conversion loss
    Available in MSOP, DFN and QFN packages
    Best-in-class ESD and reliability

  • Switch LNA

    Integrates dual-channel LNA with bypass function & high-power switch
    20W average RF input power
    Low noise figure of 0.9 dB
    +105°C operating temperature

Power Management

  • Unique, patented architecture to enable higher overall system, power conversion efficiency
  • Fully integrated solutions from 15W to 160W
  • Virtually lossless (up to 99% peak) conversion and soft-switching topology
  • Parallel operation to higher power levels
  • Available through our parent company Murata
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Integrated products

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RF Mixers & Limiters

  • Exceptional performance with high-frequency support
  • Highly integrated, reliable solutions in a small form factor
  • Variety of packaging options for maximum design flexibility
  • Best-in-class ESD and reliability
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Front End Modules

  • Industry-leading monolithic Wi-Fi RF front-end solutions
  • High linearity performance for Wi-Fi 6 and W-Fi 6E
  • Compact form factors integrating high-performance RF, analog and digital
  • Best-in-class ESD and reliability
View Products

RF Phase & Amplitude Control

  • Reliable phase and amplitude control for next-generation communications
  • Monolithic CMOS solution that integrates RF, analog and digital
  • Digital control interface with parallel and serial programming options
  • Best-in-class ESD and reliability
View Products

RF Attenuators

  • High linearity, fast switching time with wide bandwidth
  • Best-in-class attenuation error with fine attenuation steps
  • Monolithic CMOS solution that integrates RF, analog and digital
  • Excellent ESD protection and reliability
View Products

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RF Switches

  • Industry-leading RF performance
  • HaRP™ technology enhancement
  • Monolithic CMOS solution that integrates RF, analog and digital
  • Best-in-class ESD and reliability
View Products
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