B C +15V C6 3 E 7 6 5 4 6 2 TP3 1 1K JP2 JP3 R10 3 O O 4 10 DIFF J2 C7 O 2 ON/OFF 3 V- V+ 7 3 IN+ REF 6 4 IN- HYST 5 2 ON/OFF ON 3 4 5 1 JP16 C19 1.0uF 50V + C20 10uF 35V C21 1.0uF 50V J8 8 C31 3 OPT LTC1440CS8 + C18 10uF 35V 6 7 JP8 J10 VCC -15V 1 +/- R28 10K 8 3 +15V +15V 2 11 12 TP2 GND OUT C27 1.0UF J7 J4 1 JP1 0.1uF 2 1 0.1uF C23 1 IN VCC C9 VCC U5 OUT C26 1.0UF 5 6 OPT 2 8 3 4 R7 100 1% 0.25W U6 LT1121CS8-5 +15V 1 2 0.1uF TP4 1 SEP 1K T1 9 7 R29 2K C5 1.0UF 50V 4 MIDCOM-50215 1K 3 C4 1.0UF 50V -15V R5 R9 C3 1.0UF 50V R1 12.7 1% 1W 0.1uF DIFF C2 1.0UF 50V 3 1 +/- 4 SEP C1 1.0UF 50V J1 C25 10UF 35V 2 - C8 2 + 8 3 1 + 1 2 R3 4.99K 9 3 LT1795SW20 U1A JP9 0.1uF 1 +/- JP4 10 2 C24 0.1uF +15V U1 + DRIVER IN+ J3 D GND A 2 2 1 3 5 7 9 3 SHDN 4 CLK 5 CS 7 DIN 8 DOUT VCC + 1 3 R2 2 4 6 8 10 12.7 1% 1W +/-1 JP14 0.1uF U2 LTC1329CS8 IOUT 1 GND + +/- C29 10UF 35V C10 6 3 2 0.1uF 2 R23 10K JP15 1 C12 0.1uF 18 17 16 15 14 C30 20 19 1 +/+ + 13 JP6 2 JP11 12 3 DRIVER IN- LT1795SW20 U1B 11 + 1.0UF 50V J5 R22 10K +15V C28 3 R8 4.99K VCC JP5 2 R24 10K -15V R25 10K R26 10K R11 1K 3 JP10 U3A LT1368CS8 1 3 R30 49.9K Q1 FMMT3904 1 C32 0.1UF R6 3 DAC + 3 - 2 2 R12 49.9K 1% 4 2 TP6 JP7 1 EXT 2 1 2 Vcntrl ( 0 -2.5V ) ADJ 8 2 TP1 FIXED TP5 10K - 2 549 R15 1% ADJ TP10 DC BIAS R16 1K FIXED 3 1 JP12 U3B LT1368CS8 R31 7 100 + 5 - 6 TP7 R33 10K R34 10K R35 10K TP8 C17 12pF R17 3K C16 0.1uF R32 10K 8 2.1K 1% 4 1 3 4 RCVout+ U4A LT1358CS8 + C33 0.1UF 2 0.1uF TP9 R14 2 J6 +15V +15V 8 C15 DIFF SEP 1 1 3 1 JP13 RCVout- U4B LT1358CS8 J9 7 + 5 - 6 549 R21 3K R18 R19 1% 2.1K 1% Linear Technology Corp. R20 Title 1K C22 12pF Size B LT1795SW20 EVALUATION CIRCUIT Document Number DC261A-A1 * LT1795SW20 Date: A 1630 McCarthy Blvd., Milpitas, CA 95035-7487 Phone: (408)432-1900 Fax: (408)434-0507 C D Sheet Wednesday, January 29, 2003 E 1 of 1 Rev A