5 4 3 2 1 D D VCC2 VCC1 VCC1 VCC1 C1 0.1UF GND1 C RHI U1 1 VCC 2 GND 3 IM1 IN IN1 5 R2H R2L R1H R1L IN RS1 4 VCC2 1 RS2 IN2 IN2 IN2 2 IN1 IN1 3 IN1 4 RS1 RLOW LTC2920-1CS5 U2 VCC 8 IM2 7 GND 6 IM1 5 VCC2 C2 0.1UF GND2 I2 VCC2 GND2 I2 C LTC2920-2CMS8 IM IM I1 I1 B B CONTRACT NO. APPROVALS NOTES: UNLESS OTHERWISE SPECFIED A DRAWN: 1. ALL RESISTORS ARE OPTIONAL, 0805. 2. ALL CAPACITORS ARE 0805. TECHNOLOGY KIM T. CHECKED: TITLE: APPROVED: SINGLE AND DUAL MARGINING CONTROLLER SIZE DWG NO. REV DC563A-A * LTC2920-1CS5 A A DC563A-B * LTC2920-2CMS8 ENGINEER: JEFF H. DESIGNER: DATE: 5 4 3 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 Fax: (408)434-0507 LTC Confidential-For Customer Use Only A Friday, August 15, 2003 2 SHEET 1 1 OF 1