LMV228 Datasheet | National Semiconductor

.. LMV225/LMV226/LMV228 RF Power Detector for CDMA and WCDMA March 2005 LMV225/LMV226/LMV228 RF Power Detector for CDMA and WCDMA General Description The LMV225/LMV226/LMV228 are 30 dB RF power detectors intended for use in CDMA and WCDMA applications. The device has an RF frequency range from 450 MHz to 2 GHz. It provides an accurate temperature and supply pensated output voltage that relates linearly to the RF input power in dBm. The circuit operates with a single supply from 2.7V to 5.5V. The LMV225/LMV226/LMV228 have an integrated filter for low-ripple average power detection of CDMA signals with 30 dB dynamic range. Additional filtering can be applied using a...