Analog Devices 121947-HMC713MS8

HMC713MS8 RF Detector Evaluation Board

Hittite Microwave product from Analog Devices

BOARD EVAL LOG DETECTOR HMC713

The HMC713 Logarithmic Detector/Controller is ideal for converting RF signals with frequencies in the 45 MHz to 8000 MHz range to a proportional dc voltage at its output. The HMC713 employs a successive compression technology that delivers 54 dB of dynamic range with high measurement accuracy over a wide input frequency range. As the input signal is increased, successive amplifiers move into saturation one by one, creating an accurate approximation of the logarithm function. The outputs of a series of detectors are summed, converted into voltage domain, and buffered to drive the OUT/OUTP output. For detection mode, the OUT/OUTP pin is connected to the VSET input and will provide a nominal logarithmic slope of 17 mV/dB and an intercept of −68 dBm. The HMC713 can also be used in the controller mode, where an external voltage is applied to the VSET pin to create an AGC or APC feedback loop. Applications Cellular infrastructure WiMAX, WiBro, and LTE/4G Power monitoring and control circuitry Receiver signal strength indication (RSSI) Cellular infrastructure Automatic gain and power control Military, ECM, and radar