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基于RFSA3715下的5MHz to 4000MHz Digital Step Attenuator
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RFSA3715
5MHz to 4000MHz， Digital Step Attenuator
The RFMD’s RFSA3715 is a 7-bit digital step attenuator （DSA） that features high linearity over the entire 31.75dB gain control range with 0.25dB steps. The RFSA3715 features three modes of control： serial addressable， latched parallel and direct parallel programming. The RFSA3715 has a low insertion loss of 1.5dB at 2GHz. Patent pending circuit architecture providing overshoot-free transient switching performance. External address pins allow up to eight DSAs to be controlled on a single bus. The RFSA3715 is available in a 5mm x 5mm QFN package.
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