5 4 3 2 1 REVISION HISTORY ECO REV 3 __ DESCRIPTION PRODUCTION APPROVED WESTON S. DATE 01-25-16 D D C5 22pF LO GND GND 13 10 Zo=50 Ohm VCC GND 11 C4 0402 0.15pF 0402 J3 VCC EN B E1 T2 C2 22pF 0402 C3 1.0uF 0603 B GND E4 CUSTOMER NOTICE APPROVALS 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 APPLICATION. COMPONENT SUBSTITUTION AND PRINTED APP ENG. CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. A VCC 3.3V E2 E3 TECHNOLOGY AK THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 4 3 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only WESTON S. TITLE: SCHEMATIC 2-14 GHz PASSIVE MIXER SIZE 5 LO 50 Ohm 9 6 7 C1 0.15pF 0402 Zo=50 Ohm 8 J2 12 L=3.55mm U1 LTC5549 RF EN 5 C GND L=1.4mm RF 50 Ohm 1 GND X2 4 IF GND C GND 2 J1 3 IF 50 Ohm N/A SCALE = NONE 2 DATE: IC NO. LTC5549 DEMO CIRCUIT 2310A Monday, January 25, 2016 REV. 3 SHEET 1 1 OF 1 A