IIP3 (dBm), SSB NF (dB) LTC5542 1.6GHz to 2.7GHz High Dynamic Range Downconverting Mixer FEATURES DESCRIPTION n Conversion Gain: 8dB at 2.4GHz The LTC 5542 is part of a family of high dynamic range, high n IIP3: 26.8dBm at 2.4GHz gain, passive downconverting mixers covering the 600MHz n Noise Figure: 9.9dB at 2.4GHz to 4GHz frequency range. The LTC5542 is optimized for n 17.3dB NF Under +5dBm Blocking 1.6GHz to 2.7GHz RF applications. The LO frequency n High Input P1dB must fall within the 1.7GHz to 2.5GHz range for optimum n 3.3V Supply, 660mW Power Consumption performance. A typical application is a LTE or WiMAX receiver n Shutdown Pin with a 2.3GHz to 2.7GHz RF input and low-side LO. n 50 Single-Ended RF and LO Inputs The LTC5542 is designed for 3.3V operation, however the n LO Inputs 50 Matched when Shutdown IF ampli er can be powered by 5V for the highest P1dB. n High Isolation LO Switch An integrated SPDT LO switch with fast switching accepts n 0dBm LO Drive Level two active LO signals, while providing high isolation. n High LO-RF and LO-IF Isolation n The LTC5542s high conversion gain and high dynamic Small Solution Size n range enable the use of lossy IF lters in high-selectivity 20-Lead (5mm 5mm) QFN package receiver designs, while minimizing the total solution cost, APPLICATIONS board space and system-level variation. n Wireless Infrastructure Receivers High Dynamic Range Downconverting Mixer Family (LTE, W-CDMA. TD-SCDMA, WiMAX, GSM1800) PART RF RANGE LO RANGE n Point-to-Point Microwave Links LTC5540 600MHz 1.3GHz 700MHz 1.2GHz n High Dynamic Range Downmixer Applications LTC5541 1.3GHz 2.3GHz 1.4GHz 2.0GHz LTC5542 1.6GHz 2.7GHz 1.7GHz 2.5GHz L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. LTC5543 2.3GHz 4GHz 2.4GHz 3.6GHz TYPICAL APPLICATION Wideband Receiver Wideband Conversion Gain, IIP3 and NF vs IF Output Frequency 190MHz 190MHz 1nF SAW BPF 11.0 28 V IF CCIF 1nF ADC RF = 2350 50MHz IIP3 10.5 26 AMP 3.3V or 5V 22pF 150nH 150nH 1F LO = 2160MHz 10.0 24 P = 0dBm LO TEST CIRCUIT IN FIGURE 1 + 9.5 22 IF IF 4.7pF 9.0 20 LO2 LTC5542 IMAGE SYNTH 2 IF 8.5 18 22pF BPF RF RF ALTERNATE LO FOR 8.0 16 G LNA C 2300MHz FREQUENCY-HOPPING 30MHz TO LO 7.5 14 0.7pF 2400MHz 7.0 12 4.7pF SHDN 6.5 10 BIAS SYNTH 1 NF SHDN (0V/3.3V) LO1 6.0 8 V V V LOSEL 140 150 160 170 180 190 200 210 220 230 240 CC2 CC1 CC3 LO IF OUTPUT FREQUENCY (MHz) 2160MHz V 3.3V CC LO SELECT 1F 22pF 5542 TA01a (0V/3.3V) 5542 TA01 5542f 1 G (dB) CLTC5542 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1) TOP VIEW Mixer Supply Voltage (V , V )...........................3.8V CC1 CC2 LO Switch Supply Voltage (V ).............................3.8V CC3 + IF Supply Voltage (IF , IF ) ......................................5.5V 20 19 18 17 16 Shutdown Voltage (SHDN) ................0.3V to V +0.3V CC NC 1 15 LO2 LO Select Voltage (LOSEL) ................0.3V to V +0.3V CC RF 2 14 V CC3 LO1, LO2 Input Power (1GHz to 3GHz) ...................9dBm 21 CT 13 GND 3 GND LO1, LO2 Input DC Voltage ....................................0.5V GND GND 4 12 RF Input Power (1GHz to 3GHz) ...........................15dBm SHDN 5 11 LO1 RF Input DC Voltage ............................................... 0.1V 6 7 8 9 10 Operating Temperature Range .................40C to 85C Storage Temperature Range .................. 65C to 150C Junction Temperature (T ) .................................... 150C J UH PACKAGE 20-LEAD (5mm s 5mm) PLASTIC QFN T = 150C, = 34C/W, = 3C/W JMAX JA JC EXPOSED PAD (PIN 21) IS GND, MUST BE SOLDERED TO PCB ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE LTC5542IUH PBF LTC5542IUH TRPBF 5542 20-Lead (5mm x 5mm) Plastic QFN 40C to 85C Consult LTC Marketing for parts speci ed with wider operating temperature ranges. Consult LTC Marketing for information on non-standard lead based nish parts. For more information on lead free part marking, go to: