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LMV221 50 MHz to 3.
5 GHz 40 dB Logarithmic Power Detector for CDMA and WCDMA
December 2006
LMV221 50 MHz to 3.
5 GHz 40 dB Logarithmic Power Detector for CDMA and WCDMA
General Description
The LMV221 is a 40 dB RF power detector intended for use in CDMA and WCDMA applications.
The device has an RF frequency range from 50 MHz to 3.
5 GHz.
It provides an accurate temperature and supply compensated output
voltage that relates linearly to the RF input power in dBm.
The circuit operates with a single supply from 2.
7V to 3.
3V.
The LMV221 has an RF power detection range from −45 dBm to −5 dBm and is ideally suited for direct use in combination with a 30 dB directional coupler.
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