5 4 3 2 1 REVISION HISTORY VCC ECO REV __ I+ OUT VCTRL 1.0 V E7 PT4 500 Ohm C25 OPT PRODUCTION APPROVED DATE SUNNY H. 03-26-12 Q- OUT J5 J6 D R9 100 C23 OPT PT5 500 Ohm Q+ OUT C24 OPT J4 J3 VCTRL D l- OUT DESCRIPTION 2 PT3 500 Ohm PT2 500 Ohm C29 1uF R1 0 0805 PT1 500 Ohm C1 OPT R11 100 R13 100 R2 R3 0 0 0805 0805 C2 OPT C3 OPT C22 1uF L2 L3 L4 0 0805 0 0805 0 0805 C7 OPT C6 R6 OPT OPT R5 OPT R8 OPT R7 OPT C26 OPT R4 0 0805 C4 OPT 0 0805 C5 OPT R14 100 C30 1uF L1 OPTIONAL LOW PASS FILTER GND C21 1uF OPTIONAL LOW PASS FILTER C8 OPT REF IP2I IP2Q DCOI DCOQ C C E5 C10 0.1uF C34 0.1uF 4 5 6 C18 0 RF J1 T2 TC1-1-13M+ MINI-CIRCUITS L6 5.6nH 6 C17 1.5pF C19 OPT C40 0.01uF 1 2 3 4 C36 OPT 19 VCAP DCOI LO- U1 IP2I LO+ RFRF+ 7 B CMI DCOQ EN C35 0.1uF CMQ GND GND GND C38 0.01uF R10 0 C28 OPT 16 15 L5 3.9nH T1 TC1-1-13M+ MINI-CIRCUITS 17 3 2 1 C27 OPT 4 C12 0 C13 2.2pF 6 R12 0 C39 0.01uF R17 0 C15 0.01uF C16 4.7uF 0805 VCC R15 1 Ohm R18 0 R16 OPT EN V SUPPLY E11 C9 OPT 0603 A E12 1. ALL RESISTORS ARE IN OHMS, 0402 ALL CAPACITORS ARE IN MICROFARADS, 0402 2. INSTALL SHUNTS AS SHOWN. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 5 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 APP ENG. APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. NOTE: UNLESS OTHERWISE SPECIFIED 4 3 4.95V-5.45V E13 E10 CUSTOMER NOTICE EDC E8 0805 C41 0.01uF TECHNOLOGY A.K.. SUNNY H. TITLE: SCHEMATIC SIZE N/A SCALE = NONE 2 DATE: IC NO. B EIP2 E9 C37 OPT LO J2 C14 OPT 14 13 25 EIP2 12 C11 0.1uF 18 12 11 21 3 20 10 -Q 9 EDC 2 LTC5584IUF IP2Q 11 8 -I 7 +Q 1 C33 0.1uF VCC 6 CAP 4 5 10 2 3 24 1 23 C31 0.1uF 22 C32 0.1uF 9 JP1 +I E4 REF E3 GND E2 8 E1 E6 VCC SENSE GND 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only 30MHz to 1.4GHz IQ Demodulator With IIP2 and DC Offset Control LTC5584IUF REV. 2 DEMO CIRCUIT 1670A Tuesday, April 03, 2012 SHEET 1 1 OF 1 A