LTC5564 UltraFast 7ns Response Time 15GHz RF Power Detector with Comparator FEATURES DESCRIPTION n Temperature Compensated Schottky RF Peak Detector The LTC 5564 is a precision, RF power detector for ap- n Wide Input Frequency Range: 600MHz to 15GHz plications in the 600MHz to 15GHz frequency range. The n Wide Input Power Range: 24dBm to 16dBm LTC5564 operates with input power levels from 24dBm n to 16dBm. 7ns Typical Response Time n 75MHz Demodulation Bandwidth A temperature compensated Schottky diode peak detector, n Programmable Gain Settings for Improved Sensitivity gain-selectable operational amplifier, and fast comparator n Adjustable Amplifier Output Offset Voltage are combined in a small 16-lead 3mm 3mm QFN package. n High Speed Comparator with Latch Enable: The RF input signal is peak detected and then sensed by 9ns Typical Response Time n both a comparator and amplifier. The comparator provides 16-Lead 3mm 3mm QFN Package a 9ns response time to input levels exceeding V along n REF Temperature Range: 40C to 125C with a latch enable/disable function. The gain selectable APPLICATIONS operational amplifier provides a 350V/s slew rate and 75MHz of demodulation bandwidth to the analog output. n RF Signal Presence Detectors for: 802.11a, 802.11b, 802.11g, 802.15, Optical Data Links, Wireless Data V and V pins allow for the adjustment of V OUTADJ REF OUT Modems, Wireless and Cable Infrastructure offset and V switch point voltages, respectively. COMP n 5.8GHz ISM Band Radios L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and n UltraFast is a trademark of Linear Technology Corporation. All other trademarks are the property MMDS Microwave Links of their respective owners. n PA Power Supply Envelope Tracking Control Higher frequency operation is achievable with reduced performance. Consult the factory for more information. n Fast Alarm n Envelope Detector n Ultra-Wideband Radio n Radar Detector TYPICAL APPLICATION Demo Board Schematic Optimized for 15GHz V CC V vs Input Power 2.7GHz OUT V REF 3400 1000pF 10pF 100pF V COMP V = 5V 3200 CC T = 25C 3000 A 2800 17 16 15 14 13 15GHz V 2600 GAIN8 CC NC V V V 2.2pF RFIN CCRF REF COMP 2400 1 12 2200 RFIN V GAIN4 CCA 2000 10pF 1000pF 0.5pF 1800 2 11 NC V CCP 1600 LTC5564 1400 68 3 10 GAIN1 GND V V 1200 OUT OUT 1000 100pF 4 9 800 GND NC 600 GAIN2 LEN V G0 G1 OUTADJ 400 200 5 6 7 8 0 LEN G1 24 20 16 12 8 4 0 4 8 12 16 G0 V OUTADJ RFIN POWER (dBm) 10k 10k 10k 5564 TA01b 5564 F05 5564fc 1 For more information www.linear.com/LTC5564 V OUTPUT VOLTAGE (mV) OUTLTC5564 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1) TOP VIEW Supply Voltages V = V = V ............................................5.8V CCRF CCA CCP RFIN Voltage for V 5.5V ....................(V 2V) 16 15 14 13 CCRF CCRF RFIN Power .........................................................16dBm RFIN 1 12 V CCA NC 2 11 V I , I ......................................................... 10mA 17 CCP COMP VOUT GND GND V 3 10 OUT V , V , V , V , G0, G1, LEN ...0.3V to V OUTADJ REF COMP OUT CC NC GND 4 9 Operating Temperature Range (T ) (Note 2) C 5 6 7 8 I-Grade............................................... 40C to 105C H-Grade ............................................. 40C to 125C Max Junction Temperature .................................. 150C UD PACKAGE 16-LEAD (3mm 3mm) PLASTIC QFN Storage Temperature Range .................. 65C to 150C T = 150C, = 68C/W, = 7.5C/W JMAX JA JC EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE LTC5564IUD PBF LTC5564IUD TRPBF LFRF 16-Lead (3mm 3mm) Plastic QFN 40C to 105C LTC5564HUD PBF LTC5564HUD TRPBF LFRF 16-Lead (3mm 3mm) Plastic QFN 40C to 125C Consult LTC Marketing for parts specified with wider operating temperature ranges. Consult LTC Marketing for information on non-standard lead based finish parts. For more information on lead free part marking, go to: