HMC612LP4 / 612LP4E
v01.0108 75 dB LOGARITHMIC
DETECTOR / CONTROLLER, 50 Hz -3000 MHz POWER DETECTORS -SMT 7 Typical Applications Features The HMC612LP4(E) is ideal for IF and RF applications in: Wide Input Bandwidth: 50 Hz to 3 GHz Cellular/PCS/3G High Accuracy: В±1 dB with 60 dB Range Up to 0.9 GHz WiMAX, WiBro, WLAN, Fixed Wireless & Radar Supply Voltage: +2.7V to +5.5V Power Monitoring & Control Circuitry Excellent Stability over Temperature Receiver Signal Strength Indication (RSSI) Power-Down Mode Automatic Gain & Power Control Compact 4x4mm Leadless SMT Package Functional Diagram General Description Wide Dynamic Range: Up to 74 dB The HMC612LP4(E) Logarithmic Detector/Controller is
ideal for converting input signals with frequencies in the
50 Hz to 3 GHz range, to a proportional DC voltage at
its output. The HMC612LP4(E) employs a successive
compression technology which delivers extremely high
dynamic range and conversion 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 output of a series of square law detectors
is summed, converted into voltage domain and buffered to drive the LOGOUT output. For detection mode,
the LOGOUT pin is shorted to the VSET input and will
provide a nominal logarithmic slope of 19 mV/dB and an
intercept of -99 dBm. The HMC612LP4(E) 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. Electrical Specifi cations, TA = +25C[1]
Parameter
Input Frequency
В±3 dB Dynamic Range Typ. Typ. 0.00005 0.0001
75 75 Typ. Typ. Typ. Typ. Typ. Typ. Typ. Typ. Typ. Typ. Units 0.001 0.01 75 75 0.1 1 10 100 900 1900 2500 3000 MHz 74 74 74 74 72 64 60 55 dB -30 -30 -30 -31 -33 -34 -34 dBm 68 66 66 64 55 52 45 dB В±3 dB Dynamic Range Center …