5 4 3 2 1 REVISION HISTORY ECO REV __ V+ 3.15V - 3.45V GND E1 E2 D V+ VDD V+ 1 2 3 V+ 3 APPROVED DATE MICHEL A. 12-17-12 PRODUCTION VDD 2.4V - 3.45V E4 GND E3 VDD DESCRIPTION D VDD EXT JP7 + C14 1uF V+ J1 R6 OPT IN+ C C6 0.01uF R7 49.9 SMA-R V+ FILTA 3 H 2 1 L JP1 R16 330k U1 C13 0.1uF 1 3 R11 OPT 4 5 V+ 6 R14 OPT IN- C8 0.01uF FILTB 3 H 2 1 L JP2 B * ASSY U1 -A IN-PHASE CMOS LTC6957HMS-3 -B COMPLEMENTARY CMOS LTC6957HMS-4 * FILTA SD1 V+ VDD IN+ OUT1 IN- OUT2 GND GNDOUT FILTB SD2 A 1. ALL RESISTORS AND CAPACITORS ARE 0603. R18 330k VDD C15 1uF L C1 0.01uF R1 100 R3 OPT 12 J3 OUT1 C C23 0.1uF SMA-R R20 100 11 10 9 VDD 8 7 R19 330k R2 100 R4 OPT J4 OUT2 3 2 1 SD2 SMA-R R22 100 H B L JP4 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. 4 H V+ THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 5 SD1 C4 0.01uF CUSTOMER NOTICE NOTE: UNLESS OTHERWISE SPECIFIED 3 2 1 V+ R15 49.9 SMA-R R17 330k JP3 2 J2 C17 22uF 10V 3528 V+ + C16 22uF 3528 10V 3 TECHNOLOGY KIM T. MICHEL A. TITLE: SCHEMATIC A LOW PHASE NOISE, DUAL CMOS OUTPUT BUFFER/ DRIVER/ LOGIC CONVERTER SIZE IC NO. DATE: REV. LTC6957HMS-3 / -4 DEMO CIRCUIT 1766A 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 12/17/2012, 01:39 PM 2 3 SHEET 1 1 OF 1