LT5579 1.5GHz to 3.8GHz High Linearity Upconverting Mixer Fae Tseru Dpircse Tnoi n High Output IP3: +27.3dBm at 2.14GHz The LT 5579 mixer is a high performance upconverting n Low Noise Floor: 158dBm/Hz (P = 5dBm) mixer optimized for frequencies in the 1.5GHz to 3.8GHz OUT n High Conversion Gain: 2.6dB at 2.14GHz range. The single-ended LO input and RF output ports n Wide Frequency Range: 1.5GHz to 3.8GHz* simplify board layout and reduce system cost. The mixer n Low LO Leakage needs only 1dBm of LO power and the balanced design n Single-Ended RF and LO results in low LO signal leakage to the RF output. At 2.6GHz n Low LO Drive Level: 1dBm operation, the LT5579 provides high conversion gain of n Single 3.3V Supply 1.3dB, high OIP3 of +26dBm and a low noise floor of n 5mm 5mm QFN24 Package 157.5dBm/Hz at a 5dBm RF output signal level. The LT5579 offers a high performance alternative to pas- a acilpp Tsnoi sive mixers. Unlike passive mixers, which have conversion loss and require high LO drive levels, the LT5579 delivers n GSM/EDGE, W-CDMA, UMTS,L TE and TD-SCDMA conversion gain at significantly lower LO input levels and Basestations is less sensitive to LO power level variations. The lower n 2.6GHz and3.5GHz WiMAXBasestations LO drive level requirements, combined with the excellent n 2.4GHzISM BandT ransmitters LO leakage performance, translate into lower LO signal n High PerformanceT ransmitters contamination of the outputsignal. L,L T,L TC,L TM, Linear Technology and the Linear logo are registered trademarks ofLinear Technology Corporation. All other trademarksare theproperty of their respective owners. *Operation over widerfrequency range is possiblewith reduced performance. Consult LinearT echnology for information andassistance. T lacipy a acilpp Tnoi Frequency Upconversion in 2.14GHz W-CDMA Transmitter LO INPUT 1dBm (TYP) Gain, NF and OIP3 vs RF Output Frequency LO 30 LT5579 OIP3 25 T = 25C A GND V = 3.3V CC 20 f = 240MHz IF BIAS f = f + f LO RF IF 11 15 IF RF INPUT OUTPUT SSB NF MABAES0061 40nH 10 82pF 240MHz 2140MHz 4:1 + 3.9nH IF RF 5 0.45pF 33pF GAIN IF 0 1900 2000 2100 2200 2300 2400 82pF 40nH RF FREQUENCY (MHz) V CC 5579 TA01a 5579 TA01b V CC 11 3.3V 1F 100pF 1nF 5579fa GAIN (dB), NF (dB), OIP3 (dBm)LT5579 a ulosb T e Mixa Mu M r a Tsgni p ni c no Farugi Tnoi (Note 1) SupplyV oltage ............................................................4V TOP VIEW LO Input Power .................................................. +10dBm 24 23 22 21 20 19 LO InputD CV oltage........................ 0 .3V to V +0 .3V CC GND 1 18 GND RF OutputD CC urrent ........................................... 60mA GND 2 17 GND IF InputP ower( Differential) ............................... +13dBm + + IF 3 16 GND IF ,I F D C Currents .............................................. 60mA 25 IF 4 15 RF T .................................................................... 150C JMAX GND GND 5 14 Operating Temperature Range .................40C to 85C GND 6 13 GND Storage Temperature Range .................. 65C to 150C 7 8 9 10 11 12 UH PACKAGE 24-LEAD (5mm s 5mm) PLASTIC QFN T = 150C, = 34C/W , = 3C/W JMAX JA JC EXPOSED P AD (PIN25) IS GND,MUST BE SOLDERED TO PCB o r D re i n Fro Ma Tnoi LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE LT5579IUH PBF LT5579IUH TRPBF 5579 40C to 85C 24-Lead (5mm 5mm) PlasticQFN ConsultL TC Marketing for parts specified with wider operating temperature ranges. Consult LTC Marketing for information onnon-standard lead basedfinish parts. Formore information on lead freepart marking, goto: