HMC948LP3E v02.0913 54 dB, LOGARITHMICDETECTOR, 1 - 23 GHzTypical ApplicationsFeatures The HMC948LP3E is ideal for: Wide Input Bandwidth: 1 to 23 GHz T • Point-to-Point Microwave Radio Wide Dynamic Range: 54 dB up to 23 GHz M • VSAT Single Positive Supply: +3.3V S • Wideband Power Monitoring Excellent Stability Over Temperature - • Receiver Signal Strength Indication (RSSI) Fast Rise / Fall Time: 5 / 7 ns RS • Test & Measurement 16 Lead 3x3 mm SMT Package: 9 mm² O T C TE Functional DiagramGeneral Description E The HMC948LP3E Logarithmic Detector converts D RF signals at its input, to a proportional DC voltage R at its output. The HMC948LP3E employs successive compression topology which delivers high dynamic WE range over a wide input frequency range. As the input O power is increased, successive amplifiers move into P saturation one by one creating an approximation of the logarithm function. The output of a series of square law detectors is summed, converted into the voltage domain and buffered to drive the LOG OUT output. The HMC948LP3E provides a nominal logarithmic slope of +14.2 mV/dB and an intercept of -111 dBm at 23 GHz. Ideal as a log detector for high volume micro- wave radio and VSAT applications, the HMC948LP3E is housed in a compact 3x3 mm RoHS compliant SMT plastic package. Electrical Specifications, TA = +25 C Vcc = +3.3V Parameter Typ. Typ. Typ. Typ. Typ. Typ. Typ. Units Input Frequency[1] 1 5 10 14 18 20 23 GHz ±3 dB Dynamic Range 53 54 54 55 55 55 55 dB ±3 dB Dynamic Range Center -23 -25 -24 -22 -20 -15 -15 dBm Log Error Over Temperature (-40 to +85) ±1 ±1 ±1 ±1.5 ±1.5 ±1.5 ±1.5 dB Output Intercept -104 -107 -109 -112 -113 -108 -111 dBm Output Slope 16.8 16.7 15.9 15.2 14.6 14.4 14.2 mV/dB [1] Video output load should be 1K Ohm or higher. Inf F or o m r p atio r n ifc ur e n , d ishe e d lbiv y e A r n y a alog n D d t evic o p es is la beclie o eved rd to ebre sa: H ccur iattti e tae M nd re ilicarbloew . H a o ve C wever, o n rp o For price, delivery, and to place orders: Analog Devices, Inc., responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other oration, 2 Elizabeth Drive, Chelmsford, MA 01824 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106 Phone: 978-250-3343 Fax: 978-250-3373 O rights of third parties that may result from its use. Specifications subject to change without notice. No P rd hone e r O : 7 n 81- -3li 2n 9 e a -47 t w 0 w 0 • O w rd .h e it r o t niltie n .c e ao t m 1 license is granted by implication or otherwise under any patent or patent rights of Analog Devices. www.analog.com Application Support: Pho Trademarks and registered trademarks are the property of their respective owners. ne: 978-250-33 A 4 p 3 p o lica rti a o p n S p u s p @ po h rt itt : P ite ho . n c e om : 1-800-ANALOG-D
