5 4 3 2 1 REVISION HISTORY VCC ECO REV DESCRIPTION APPROVED DATE 2 PRODUCTION ANDY M. 05/20/10 C31 100pF C1 1nF R8 OPT C3 20pF D J1 C4 1nF L1 0 INA C2 100nF 3 75 C7 LO C8 1 C18 20pF 19 20 VCCN ENVA FLTRA 21 22 RP1 VCCB DECB 7 VCC C21 1nF RT2 VOB C 15 1 14 R6 1.10k 13 C16 1nF U1 LTC5583IUF 1nF 1nF TP5 1 C19 LO 1 1nF C23 100nF C30 100pF C25 1nF TP6 R11 0 1 1 0603 C27 A 1uF TP8 1 C28 10nF 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. MI VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APP ENG. ANDY M. APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. TECHNOLOGY THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 3 A DUAL 6GHz RMS POWER DETECTOR IC NO. REV. LTC5583IUF 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 TITLE: SCHEMATIC SIZE 4 C32 OPT 1. ALL CAPACITORS AND RESISTORS ARE 0402. TP9 5 B ENVB NOTE: UNLESS OTHERWISE SPECIFIED, CUSTOMER NOTICE VCC 3.1V - 3.5V 1 R13 OPT VCC R3 VOB HI R9 0 TP7 VOS R7 OPT 75 C26 20pF GND C14 R10 0.3pF GND C13 INV 2 C29 VCC 1% VCC JP3 C22 1nF VODF TP4 1nF L2 0 1 16 C20 J2 1% 17 1nF INB 1nF OPT TP3 1nF C17 B VOA R5 9.76k 18 3 6 R4 INV C15 1nF DIS 12 5 VOS ENVB 2 EN 11 4 VODF FLTRB JP1 INPB EN VOA VCCR 10 3 1nF RP2 3 1 1 C10 RT1 9 1nF C TP2 HI 1nF VCCA INNB 2 C11 DECA 8 VCC INNA INPA VCC 1 23 24 C6 1nF C5 OPT 2 0.3pF C12 R12 OPT D ENVA VCCN JP2 C9 20pF 1 VCC R2 C24 TP1 R1 0 DEMO CIRCUIT 1599A DATE: Friday, July 30, 2010 2 SHEET 1 1 2 OF 1