RFSA2644

    50 - 4000 MHz Serial Controlled Digital Step Attenuator, 6-Bit, 0.5 dB Steps

    Last Time Buy >

    End of Life announced May 23, 2019 (PCN 19-0094).
    Last Time Buy: June 3, 2020
    Recommended replacement for new designs: RFSA3714
    Contact your local sales representative for assistance.

    Key Features

    • Frequency Range 50MHz to 4000MHz
    • 6-Bits, 31.5dB Range, 0.5dB Step
    • High Linearity, IP3 >48dBm
    • 3V and 5V Logic Compatible
    • Serial-to-Parallel Controller
    • Serial Programming Interface
    • Power-up Programming Modes
    • On-Chip ESD Protection Class 1C HBM
    • Single Supply, 3V to 5V Operation
    • Footprint Compatible with Most 24-Pin, 4mm x 4mm, QFNs

    Qorvo's RFSA2644 is a 6-bit digital step attenuator (DSA) that features high linearity over the entire 31.5dB gain control range with excellent step accuracy in 0.5dB steps. The RFSA2644 is programmed via a serial mode control interface that is both 3V and 5V compatible. The RFSA2644 also offers a rugged Class 1C HBM ESD rating via on-chip ESD circuitry. The MCM package is footprint compatible with most 24-Pin, 4mm x 4mm, QFN packages.

    Frequency Min(MHz) 50
    Frequency Max(MHz) 4,000
    Insertion Loss(dB) 1.2
    Attenuation Range(dB) 31.5
    IP1dB(dBm) 30
    IIP3(dBm) 55
    Interface Serial
    Bits 6
    Step Size(dB) 0.5
    Voltage(V) 5
    Package Type Laminate MCM
    Package(mm) 4.2 x 4.2
    ECCN 5A991.G

    This product appears in the following application block diagrams:

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