5 4 3 2 1 * Z1 C12 (OPT) R1 13.7 0.1% * C1 C9 GND 19 GND 20 GND 21 4 IF- * C8 TL3 J3 RF * C14 C GND 13 6 GND R2 13.7 0.1% C4 100pF GND 12 11 VCC L2 100nH * GND 14 5 GND C11 (OPT) * L3 RF 15 10 VCC C2 * TL2 VCC TC4-1W+ C * 9 6 VCC 1 GND 16 C3 8 2 J1 IF GND 17 3 IF+ TL1 GND 4 GND 18 U1 LT5578IUH 2 GND 7 3 1 GND LO 22 L1 100nH C10 (OPT) T1 4:1 D GND 23 D GND 24 * C13 25 GND J2 LO C6 1nF C5 10pF C7 1uF TP1 B TP2 VCC 3.15V - 3.5V GND B * NOTE: Component values depend on board version. VERSION IF FREQ. LO FREQ. RF FREQ. C1, C2 DC1545A-A 240MHz 2190MHz 1950MHz 82pF 33pF DC1545A-B 140MHz 760MHz 900MHz 220pF 39pF C9 C3 C8 4.7pF L3 2.4nH 1.8pF 4 Z1 C13 0 Ohm 5.6pF 2.7pF CONTRACT NO. LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAYSIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 5 1.5pF 12nH CUSTOMER NOTICE A C14 3 APPROVALS DRAWN HELEN Z. DATE 4/07/09 TECHNOLOGY A TITLE LT5578IUH HIGH LINEARITY UPCONVERTING MIXER CHECKED APPROVED ENGINEER SUNNY H. 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 Fax: (408)434-0507 4/07/09 DESIGNER Thursday, September 03, 2009 SIZE CAGE CODE DWG NO REV A DC1545A-A/B FILENAME: SCALE: 2 SHEET 1 1 OF 1