5 4 3 2 1 REVISION HISTORY ECO __ REV 2 DESCRIPTION PRODUCTION APPROVED DATE ANDY M. 04-26-13 T1 TC4-1W-7ALN+ D 4 D 6 IF J3 3 2 C9 1nF L1 470nH 1 C5 C8 1nF 22pF L2 470nH 0603 R1 475 VCC R2 0603 475 EN GND 14 IF- LO GND ISEL GND 5 B IF+ LTC5551IUF CT GND 12 TEMP E5 11 10 C2 C3 OPT 3.9pF 9 LO J2 17 B 8 4 GND VCC 3 RF 7 C1 X1 2.2pF 7.5nH X2 OPT TEMP VCC 2 J1 EN RF U1 TP 6 1 IFBIAS 16 R3 OPT 13 C 15 C VCC E4 C7 22pF ISEL E3 VCC 3.3V E1 C4 0.56uF 0603 C6 0.56uF 0603 GND E2 CUSTOMER NOTICE NOTE: UNLESS OTHERWISE SPECIFIED A LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES. VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APP ENG. APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. 1. ALL RESISTORS ARE IN OHMS, 0402 2. ALL CAPACITORS ARE IN MICROFARADS, 0402 THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 5 APPROVALS 4 3 TECHNOLOGY AK ANDY M. A TITLE: SCHEMATIC DOWNCONVERTING MIXER 300MHz - 3.5GHz SIZE IC NO. N/A SCALE = NONE 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only LTC5551IUF DEMO CIRCUIT 2035A REV. 2 Friday, April 26, 2013 DATE: 2 SHEET 1 1 OF 1