5 4 3 2 1 D D VCC C1 22nF U1 LT5570EDD 5 RFin J1 C T2 C8 3.3 2 4 C9 1nF 1 C4 1nF Vcc FLTR 2 In+ En 9 10 3 DEC CFB+ 8 4 In- CFB- 7 5 Gnd Out 6 3 GND TP2 1 Gnd L1 0Ohm 4.75V-5.25V EN TP3 C6 TBD C R1 100K 11 C7 1nF C3 1uF C2 1nF TP1 MA/COM MABAES0061 TP4 OUT C5 TBD B B 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 LT5570EDD VHF/UHF Log Mean Square Power Detector APPROVED ENGINEER D. Stuetzle 3/6/06 DESIGNER SIZE Monday, February 25, 2008 SCALE: 3 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 Fax: (408)434-0507 CAGE CODE DWG NO FILENAME: 2 A REV DC1077A SHEET 1 1 2 OF 1