ISDN S SMD INTERFACE ISOLATION TRANSFORMERS FEATURES Ê Designed for Isolation between Line Card and Terminal Ë Meets Pulse Waveform Template of CCITT 1.430 Ì Excellent Longitudinal Balance Í2000Vrms Minimum Isolation ÎIndustry Standard SMD Package ÏSingle or Dual Core Package ELECTRICAL SPECIFICATIONS AT 25 OC PER CORE PART NUMBER TURNS RATIO (± 2%) A B PM-IS42 PM-IS43 PM-IS44 PM-IS45 PM-IS46 PM-IS47 1:1 1:1 1:1.8 1:2 1:2.5 1:2 PRIMARY OCL (mH Min.) SECONDARY LL µH Max.) (µ PRI-SEC Cw/w (pf Max.) 22 22 22 22 22 22 5/15 5 15 15 30 10 100 100 100 100 100 100 1:2 1:1 1:1.8 1:2 1:2.5 1:2 PRIMARY CP (pf Max.) 40/80 40 140 80 110 150 PRIMARY DCR (Ohms Max.) SECONDARY DCR (Ohms Max.) 2.4 2.4 2.4 2.4 2.4 2.4 2.4/4.0 2.4 4.2 4.0 5.8 5.0 Package & Schematic A A A A A A LONGITUDINAL BALANCE: 10KHz - 300KHz: 60dB Minimum RATIO IS EXPRESSED AS: PRIMARY : SECONDARY DUAL CORE PACKAGE "A" SECONDARY 16 15 14 SECONDARY 13 12 11 9 10 NOTE: Primary:1 to 4 & 5 to 8 Secondary: 16 to 13 & 12 to 9 1 2 3 4 5 6 7 PRIMARY PRIMARY CORE A CORE B 8 RECOMMENDED PCB LAYOUT DIMENSION IN INCHES, (mm) .760 (19.30) PHYSICAL DIMENSIONS .... IN INCHES (mm) 16x.120 (3.05) 16 15 14 13 12 11 10 .520 (13.21) 7x.100 (2.54) 9 1 16 16x.050 (1.27) P M PIN#1 DOT 1 2 PM-IS4X YYWW 3 4 5 6 7 .700 (17.78) .580 (14.73) 8 8 9 .950 (24.13) MAX .390 (9.91) MAX .020 (0.51) TYP .050 (1.27) TYP .100 (2.54) TYP .020 (.51) .010 (.25) .050 (1.27) FLAT .030 (0.76) .720 (18.29) MAX .010 (0.25) TYP Specifications subject to change without notice. P Premier M Magnetics Inc. 18 27111 Aliso Creek Road, Suite 175 Aliso Viejo, California 92656 Phone: (714) 362-4211 Fax: (714) 362-4212