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TSD-1227 Datasheet(PDF) 3 Page - Premier Magnetics, Inc. |
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TSD-1227 Datasheet(HTML) 3 Page - Premier Magnetics, Inc. |
3 / 3 page 20381 BARENTS SEA CIRCLE, LAKE FOREST, CA 92630 • TEL: (949) 452-0511 • FAX: (949) 452-0512 • http://www.premiermag.com Specifications subject to change without notice. 3 pm-wt 08/99 M P Premier Magnetics Inc. "INNOVATORS IN MAGNETICS TECHNOLOGY" 12 3 456 7 8 16 15 14 13 12 11 10 9 .390 (9.91) MAX .020 (.51) .010 (.25) .100 (2.54) TYP .020 (0.51) TYP .050 (1.27) TYP .950 (24.13) MAX PIN#1 DOT FLAT .050 (1.27) .030 (0.76) .580 (14.73) .010 (0.25) TYP 3KV REINFORCED INSULATION COUPLING TRANSFORMER ! Optimized for use with CYPRESS Semiconductor HOTLinkTM Chip Set. " For use in 150 Ω STP or 75 Ω Coax, Copper Media Applications of Fast Ethernet, FDDI & ATM $ IEC950, UL1950, CSA-950, 3000Vrms Reinforced Insulation System. >6.2mm Creepage/Clearance HOTLinkTM is a Trade Mark of CYPRESS SEMICONDUCTOR Inc. CY7B923 HOTLinkTM Transmitter & CY7B933 HOTLinkTM Receiver. ELECTRICAL SPECIFICATIONS AT 25OC - OPERATING TEMPERATURE RANGE -40OC TO +85OC PART NUMBER PRI-SEC Cw/w (pf Max.) PRI / SEC L L ( µµµµµH Max.) PRI/SEC DCR ( Ω Ω Ω Ω Ω Max.) -3dB Bandwidth MHz Low Max. High Min. CABLE MEDIA TYPE TSD-1227* 50/75 Ω 266+ 7.0 1:1 1.5 0.13 0.15 0.50 2.0 380 Baud Rate (MHz) PRIMARY* Inductance ( µµµµµH Typ.) TURNS RATIO (± 5%) Rise Time (ns Max.) *APPLICATION NOTE: Reinforced Insulation System per IEC950, UL1950, CSA-950. The TSD-1227, 3KV reinforced insulation version of the PM-WT75 was optimized for use with 8B/10B code and NRZ modulation as used in HOTLinkTM for communication. One of the main advantages of 8B/10B code is the elimination of baseline wander concerns (DC bias). Methods of encoding that are not DC balanced, such as FDDI 4B/5B require a compromise in the magnetics design as more turns (higher inductances) are necessary to combat the DC imbalance. Thus the major design consideration for 8B/10B code was to provide sufficient high end bandwidth to allow passage of at least the 3rd hamonic. In a system operating at a 266 MHz baud rate this 3rd harmonic is at 399MHz. The TSD-1227 should be used for both 75 Ω & 150Ω applications using 8B/10B coding @ > 266MHz Baud Rates. MECHANICAL M P TSD-1227 YYWW PHYSICAL DIMENSIONS .... IN INCHES (mm) SCHEMATIC RECOMMENDED PCB LAYOUT DIMENSION IN INCHES, (mm) 9 12 16 15 7 15 13 10 4 28 3 14 11 6 PRIMARY SECONDARY PRIMARY SECONDARY 16x.050 (1.27) 7x.100 (2.54) 16x.120 (3.05) .520 (13.21) 1 16 9 8 .760 (19.30) .700 (17.78) |
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