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| turns ratio insertion loss return loss crosstalk differential to common part (5%) (db max) (db min) (db min) mode rejection hipot number (db min) (vrms min) receive transmit 100 khz?100 mhz 30 mhz 60 mhz 80 mhz 30 mhz 60 mhz 80 mhz 30 mhz 60 mhz 100 mhz h1267 1ct:1ct 1ct:1ct -1.0 -16 -12 -12 -40 -40 -35 -42 -37 -33 1500 10/100base-t single port, smt transformer for fast ethernet to gigabit ethernet interchangeable designs usa 858 674 8100 ? ? uk 44 1483 401 700 ? ? france 33 3 84 35 04 04 ? ? singapore 65 6287 8998 ? ? shanghai 86 21 32181071 ? ? china 86 769 5538070 ? ? taiwan 886 2 26980228 www.pulseeng.com 1 h342.b (8/05) meets ieee802.3 and ansi x3.263 standards, including 350 h ocl with 8 ma dc bias pin-compatible to pulse gigabit ethernet part numbers h5004 and h5007 electrical specifications @ 25c ? operating temperature 0c to +70c weight . . . . . . . . . .2.7 grams tape & reel . . . . . . .300/reel tube . . . . . . . . . . . . .25/tube dimensions: inches mm unless otherwise specified all tolerances are . 010 . 0,25 when ordering tape & reel packaging add the suffix ?t? to the part number, such as ?H1267T.? mechanical h1267 10/100base-t single port, smt transformer for fast ethernet to gigabit ethernet interchangeable designs usa 858 674 8100 ? ? uk 44 1483 401 700 ? ? france 33 3 84 35 04 04 ? ? singapore 65 6287 8998 ? ? shanghai 86 21 32181071 ? ? china 86 769 5538070 ? ? taiwan 886 2 26980228 www.pulseeng.com 2 h342.b (8/05) application notes the fast ethernet to gigabit ethernet interchangeable design is a design concept that allows design engineers to design a network applications board that can support both fast ethernet (10/100base-t) and gigabit ethernet (1000base-t) applications by simply replacing several components without having to re-design the whole board. two components that play a part in this design are the ethernet silicon and the transformer. both the silicon and the transformer for both 10/100 and gigabit must have footprint compatibility. this footprint compatibility will mean a single board layout for the interface between the ethernet silicon and the transformer of either 10/100 or gigabit applications. presently, if a network design engineer wants to design a 10/100 card, he would have to choose a 10/100 transformer. if the engineer wants to design a gigabit card, he would have to choose a gigabit transformer. this leads to two different designs (board layout) for two different applications. the objective of interchangeable design is to allow the engineer to utilize the same design (and board layout) for 10/100 and for a gigabit design (and vice versa) with minimal change as possible to the design. ! ! ! ! " " schematic h1267 10/100base-t single port, smt transformer for fast ethernet to gigabit ethernet interchangeable designs usa 858 674 8100 ? ? uk 44 1483 401 700 ? ? france 33 3 84 35 04 04 ? ? singapore 65 6287 8998 ? ? shanghai 86 21 32181071 ? ? china 86 769 5538070 ? ? taiwan 886 2 26980228 www.pulseeng.com 3 h342.b (8/05) # $%&'&()* + % ,-. /#0 # 12 # + 3 . application circuit h1267 the above circuit is a simple interface for a fast ethernet tranformer connecting to both the fast ethernet silicon and the rj- 45 connector. in order to design a gigabit application, simply replace the fast ethernet silicon, the fast ethernet transformer and the rest of the pa ssive components with a gigabit ethernet silicon, a gigabit transformer and the rest of the passive components. it is highly recommended that the cable side center taps of each transformer be terminated to 75 resistors and that the four center taps be terminated to an efi capacitor prior to ground termination. 10/100base-t single port, smt transformer for fast ethernet to gigabit ethernet interchangeable designs usa 858 674 8100 ? ? uk 44 1483 401 700 ? ? france 33 3 84 35 04 04 ? ? singapore 65 6287 8998 ? ? shanghai 86 21 32181071 ? ? china 86 769 5538070 ? ? taiwan 886 2 26980228 www.pulseeng.com 4 h342.b (8/05) application circuit h5004 the above circuit is a simple interface for a gigabit transformer connectiong to both the gigabit ethernet silicon and the rj-4 5 connector. it is highly recommended that the cable side center taps of each transformer be terminated to 75 resistors and that the four center taps be terminated to an efi capacitor prior to ground termination. # $%&'&()* + % ,-. !!" /#0 # 12 # + 3 . !! # $%&'&()* + % ,-. /#0 # 12 # + 3 . 10/100base-t single port, smt transformer for fast ethernet to gigabit ethernet interchangeable designs application circuit h5007 the above circuit is a simple interface for a gigabit transformer connectiong to both the gigabit ethernet silicon and the rj-4 5 connector. it is highly recommended that the cable side center taps of each transformer be terminated to 75 resistors and that the four center taps be terminated to an efi capacitor prior to ground termination. www.pulseeng.com 5 h342.b (8/05) for more information: pulse worldwide headquarters 12220 world trade drive san diego, ca 92128 u.s.a. www.pulseeng.com tel: 858 674 8100 fax: 858 674 8262 pulse northern europe 3 huxley road surrey research park guildford, surrey gu2 5re united kingdom tel: 44 1483 401700 fax: 44 1483 401701 pulse southern europe zone industrielle f-39270 orgelet france tel: 33 3 84 35 04 04 fax: 33 3 84 25 46 41 pulse south asia 150 kampong ampat #07-01/02 ka centre singapore 368324 tel: 65 6287 8998 fax: 65 6280 0080 pulse north asia 3f-4, no. 81, sec. 1 hsin tai wu road hsi-chih taipei hsien taiwan tel: 886 2 26980228 fax: 886 2 26980948 pulse china headquarters no. 1 industrial district changan, dongguan china tel: 86 769 5538070 fax: 86 769 5538870 performance warranty of products offered on this data sheet is limited to the parameters specified. data is subject to change w ithout notice. other brand and product names mentioned herein may be trademarks or registered trademarks of their respective owners. ? copyright, 2005. pulse engineering, inc. all rights reserved. pulse north china room 1002 no. 819 nanjing west rd shanghai china tel: 86 21 32181071 fax: 86 21 32181396 |
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