PE43705 UltraCMOS® RF Digital Step Attenuator

    SG$ 17.15 SG$ 17.15 17.1496 SGD

    US$ 12.65

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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 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.



    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.


        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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