TI LMH2120UM/NOPB

50 МГц ~ 6 ГГцCDMA, GSM, EDGE, W-CDMA-35 дБм ~ 5 дБм

Overview

The LMH2120UM/NOPB is a 6GHz Linear RMS Power Detector with 40dB dynamic range. The power detector particularly suited for accurate power measurement of modulated RF signals that exhibit large peak-to-average ratios, i.e., large variations of the signal envelope. Such signals are encountered in W-CDMA and LTE cell phones. The RMS measurement topology inherently ensures a modulation insensitive measurement. The device has an RF frequency range from 50MHz to 6GHz. It provides an accurate, temperature and supply insensitive, output voltage that relates linearly to the RF input power in volt. The LMH2120's excellent conformance to a linear response enables an easy integration by using slope and intercept only, reducing calibration effort significantly. The device operates with a single supply from 2.7 to 5V. The LMH2120UM/NOPB has an RF power detection range from -35 to 5dBm and is ideally suited for use in combination with a directional coupler.

Features