5 4 R12 51.1 3 J2 2 1 VCCO J4 R14 51.1 VCC +5V E6 VCCO ENABLE C3 0.1uF E7 D C11 47nF VDEC E9 pg2 C12 47nF pg1 IN+ 2 C20 2.7pF C 5 32 31 30 29 28 27 26 25 1 2 3 4 5 6 7 8 C2 0 4 R3 TBD C4 0.1uF PG1 GND PG2 PG3 GND PG4 GND GND C5 1uF 3 J1 C14 47nF pg4 GND GND DEC IN+ INDEC GND GND VCC ENABLE GND OUTOUT+ GND MODE VCC 33 U1 LT5554EUH 24 23 22 21 20 19 18 17 pg6 R1 0 C15 47nF C16 47nF J6 R16 51.1 J3 5 R6 68.1 mode C OUT+ J33 C9 0.1uF C6 47nF C18 0.1uF R2 0 strobe pg0 C17 47nF J7 GND R17 51.1 GND E15 E14 strobe pg6 pg5 pg4 pg3 pg2 pg1 pg0 enable OUT- 4 2 B R28 0 R29 0 R30 0 R31 0 R32 0 R33 0 R34 0 VCC J5 C21 0.1uF 40PINS SMT-TB A 3 MODE R27 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 T2 VCCO 1 E16 B D TC2-1T pg5 J11 R7 OPT R4 TBD enable C8 0.1uF 9 10 11 12 13 14 15 16 GND ETC1-1-13 IN- C19 4.7uF R5 68.1 VCC PG5 GND PG6 PG0 GND STROBE GND GND C1 0 T1 C13 47nF VDEC R8 0 1 pg3 E1 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 VDEC E10 C23 0.1uF C22 0.1uF E11 PG0 E12 PG1 C25 0.1uF C24 0.1uF E13 PG2 E4 E3 PG3 C26 0.1uF 5 E2 PG6 STROBE VPG mode VCCO 0.1uF E5 PG5 PG4 C28 C27 0.1uF E8 R20 10K R21 10K R22 10K R23 10K R24 10K R25 10K 4 R26 10K C29 0.1uF VPG 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. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 3 A CONTRACT NO. APPROVALS DRAWN A. Karpova DATE 08/23/06 CHECKED TECHNOLOGY A TITLE LT5554EUH IF AMPLIFIER APPROVED ENGINEER 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 Fax: (408)434-0507 V. Dvorkin 08/23/06 DESIGNER Wednesday, April 02, 2008 SIZE CAGE CODE SCALE: 2 FILENAME: DWG NO REV DC1150A SHEET 1 3 1 OF 1