5 4 3 2 1 E1 Vcc3 4.75V-5.25V R41 0.1uF C28 1K R46 0.1uF C33 R39 3.09K 0.1uF 0.1uF 3.09K R49 2K 3.09K C32 1.0pF E2 Voutmi E3 Voutpq E4 Voutpi E5 Voutmq Iout+ 16 1 GND C43 22nF 3 T1 6 5 1 4 3 IF- 2XLO- 10 E10 Vctrl 3.09K C29 1.0pF 4 R52 240 T2 C45 1 5 6 22nF 3 JTX-4-10T R36 8 1nF R51 E6 Vcc2 1.8V-5.25V 20K J4 2xLOin Vcc IF_DET. 1nF 20K ON C39 1.0uF OFF ON ON ENABLE STBY B E11 Overload 100 C26 1.5pF CUSTOMER NOTICE E8 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. E12 4 R40 OFF C15 GND E7 5 1.0uF SW1 C16 C25 1.5pF A 2 - J2 VoutQ R35 EN 9 7 Vctrl 6 Vcc C22 1.0uF R44 49.9 STBY 12 U1 2XLO+ 11 LT5546EUF 5 B C30 C 2 IF+ 4 GND U2 LT1818CS8 6 JTX-4-10T E9 Vcc1 1.8V-5.25V C2 5.6pF 3 + R42 2K C J3 IFin D 7 7 C27 1K - 2 R48 C34 R45 6 C36 4.7uF R43 2K Qout- 13 1.0uF C1 5.6pF R50 2K Qout+ 14 49.9 3 0.1uF Iout- 15 R47 + 4 J1 Voutl C31 U3 LT1818CS8 C38 0.1uF C37 4 C35 4.7uF D 3 CONTRACT NO. APPROVALS DRAWN DATE June Wu 7/17/03 Vladimir D. 7/17/03 CHECKED TECHNOLOGY LT5546EUF, IF RECEIVER, WIDE BB DESIGNER Tuesday, November 04, 2003 2 A TITLE APPROVED ENGINEER 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 Fax: (408)434-0507 SIZE CAGE CODE DWG NO REV A DEMO DC696A SCALE: FILENAME: SHEET 1 1 OF 1