5 4 3 2 1 D D C1 22nF U1 LT5570EDD C J1 T1 LDB212G1020-C001 1 4 C7 0.6pF 5 Vcc FLTR 2 In+ En 9 GND 10 2 3 DEC DNC 8 3 4 In- DNC 7 5 Gnd Out 6 TP3 C6 DO NOT INSTALL EN C R1 100K 11 C4 1nF TP1 TP2 1 Gnd L1 3.3nH RFin 800-2700 MHz C3 1uF C2 1nF VCC 4.75V-5.25V OUT TP4 C5 OPT B B Note: Demo Board is Optimized for 2140 MHz. Refer to Page 3 of the Quick Start Guide for Demo Board Modifications. CUSTOMER NOTICE 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 CIRUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. A THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 5 4 CONTRACT NO. APPROVALS DRAWN A. Karpova DATE 3/6/06 CHECKED TECHNOLOGY TITLE APPROVED ENGINEER D.Stuetzle 3/6/06 LT5570EDD Log Mean Square Power Detector DESIGNER SIZE Tuesday, December 04, 2007 SCALE: 3 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 Fax: (408)434-0507 CAGE CODE DWG NO FILENAME: 2 A REV DC1078A SHEET 1 1 2 OF 1