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PE43705 UltraCMOS® RF Digital Step Attenuator

50Ω 7Bit 31.75dB 0.25dB, 0.5dB, 1.0dB Digital Step Attenuator, w/o ext. Vss

    SG$ 16.73

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    50Ω 7Bit 31.75dB 0.25dB, 0.5dB,
    1.0dB Digital Step Attenuator, w/o ext. Vss

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    Psemi


    pSemi Corporation is a Murata company driving semiconductor integration. pSemi builds on Peregrine Semiconductor’s 30-year legacy of technology advancements and strong IP portfolio but with a new mission—to enhance Murata’s world-class capabilities with high-performance semiconductors. With a strong foundation in RF integration, pSemi’s product portfolio now spans power management, connected sensors, optical transceivers, antenna tuning and RF frontends. These intelligent and efficient semiconductors enable advanced modules for smartphones, base stations, personal computers, electric vehicles, data centers, IoT devices and healthcare.


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    Overview

    The PE43705 is a 50Ω, HaRP™ technology-enhanced, 7-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 PE43703 with higher power handling and a wider frequency, control voltage, and operating temperature range. 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 31.75 dB attenuation range in 0.25 dB, 0.50 dB, or 1 dB steps, it maintains a monotonic step response from 50 MHz through 8 GHz. PE43705 also features safe attenuation state transitions and is offered in a 32-lead 5 × 5 mm QFN package. In addition, no external blocking capacitors are required if 0V DC is present on the RF ports.

    Features

        Attenuation options: covers a 31.75 dB range in 0.25 dB, 0.5 dB, or 1.0 dB steps
        Safe attenuation state transitions
        High power handling
        High linearity: +58 dBm IIP3
        1.8V control logic-compatible
        105°C operating temperature
        Programming modes: Direct parallel, latched parallel, serial and serial addressable
        High-attenuation state @ power-up (PUP)
        ESD performance
        Packaging: 32-lead 5 × 5 mm QFN
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    The PE43705 is a 50Ω, HaRP™ technology-enhanced, 7-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 PE43703 with higher power handling and a wider frequency, control voltage, and operating temperature range. 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 31.75 dB attenuation range in 0.25 dB, 0.50 dB, or 1 dB steps, it maintains a monotonic step response from 50 MHz through 8 GHz. PE43705 also features safe attenuation state transitions and is offered in a 32-lead 5 × 5 mm QFN package. In addition, no external blocking capacitors are required if 0V DC is present on the RF ports

    Key Features

        Attenuation options: covers a 31.75 dB range in 0.25 dB, 0.5 dB, or 1.0 dB steps
        Safe attenuation state transitions
        High power handling
        High linearity: +58 dBm IIP3
        1.8V control logic-compatible
        105°C operating temperature
        Programming modes: Direct parallel, latched parallel, serial and serial addressable
        High-attenuation state @ power-up (PUP)
        ESD performance
        Packaging: 32-lead 5 × 5 mm QFN


    Specifications

    Description7-bit; 128 states
    Min Freq.50 MHz
    Max Freq.8 GHz
    Max Typ. IL (dB)2.40
    Min Typ. IL (dB)1.30
    IIP3 (dBm)58
    Attn Range (dB)31.75
    Attn Step (dB)0.25/0.5/1.0
    InterfaceParallel (Latched, Direct), Serial Addressable
    Bits7
    Package32L QFN
    Package (mm)5x5
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