5 4 3 2 E1 EN E4 SEL A/B 3 DGND E2 DGND 1 ENABLE R8 50 OPT 2 5 4 3 2 EXT Z=50 3 JP2 DGND 3 R9 50 OPT A SEL JP4 1 R7 VCC 20K DGND 50 OHM BNC J8 SEL A/B D 1 AGND 2 FLOAT NOTE 2 B EXT 1 JP1 CONTROL 5 4 3 2 1 50 OHM BNC J1 EN 2 Z=50 NOTE 2 D 1 3 EXT IN1A IN2A IN3A IN1B IN2B IN3B 5 4 3 2 5 4 3 2 5 4 3 2 5 4 3 2 5 4 3 2 5 4 3 2 BNC x 6 J12 1 J13 J14 J5 1 1 1 J6 J7 E5 VREF L1 L1 L1 L1 BANANA JACK J2 VCC 3.3V TO 5V VCC 1 GND C1 4700PF 2 NOTE 3 C JP5 VREF C2 470PF C3 470PF C10 4700PF U1 Z=75 IN1A 1 IN1A 2 DGND DGND Z=75 IN2A 3 IN2A 4 VREF VREF Z=75 IN3A Z=75 5 IN3A OUT1 20 6 AGND1 V- 19 7 IN1B OUT2 18 IN1B 1 L1 Z=75 IN2B 1 L1 Z=75 IN3B R10 75 R11 75 R12 75 R4 75 R5 75 V+ 24 EN EN 23 SEL SEL 22 21 V+ 8 AGND2 V+ 17 9 IN2B OUT3 16 10 AGND3 V- 15 11 IN3B 12 V- R6 75 C4 10UF,16V 1206 C11 0.33UF,10V C NOTE 3 R1 75 OUT1 Z=75 L2 R2 75 OUT2 Z=75 L2 R3 75 OUT3 Z=75 L2 BNC x 3 J9 5 1 4 3 2 J10 5 1 4 3 2 J11 5 1 4 3 2 OUT1 OUT2 OUT3 V+ 14 V+ 13 LT6555CGN B B E3 AGND NOTES: UNLESS OTHERWISE SPECIFIED A C5 4700PF SINGLE DUAL 1 3 SUPPLY JP3 2 BANANA JACK J3 AGND 1. ALL RESISTORS ARE IN OHMS, 0402. ALL CAPACITORS ARE 0402. 2. SHDN CONNECTOR IS GENERIC 50 OHMS VERTICAL BNC. 3. VIDEO CONNECTORS ARE CANARE BCJ-BPLH BNC. 4. INSTALL SHUNTS ON JP1-JP5 PIN 1 AND 2. 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. C6 470PF 4 3 C9 10UF,16V 1206 C8 0.33UF,10V VEE CONTRACT NO. APPROVALS DRAWN: TECHNOLOGY KIM T. TITLE: CHECKED: APPROVED: ENGINEER: JON M. DESIGNER: DATE: 2 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 Fax: (408)434-0507 LTC Confidential-For Customer Use Only SCHEMATIC HIGH SPEED TRIPLE 2:1 VIDEO MULTIPLEXER SIZE A THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 5 C7 470PF BANANA JACK J4 VEE -3.3V TO -5V DWG NO. REV DC858A-LT6555CGN Friday, January 21, 2005 SHEET 1 A 1 OF 1 A