e l e c t r o n i c s i n c . 4-port 10base-t interface module with enhanced common mode attenuation tel: (818) 892-0761 fax: (818) 894-5791 http://www.pca.com pca electronics, inc. 16799 schoenborn st. north hills, ca 91343 ? optimized for lsi l64381 chip ? robust construction allows for solder reflow processes ? complies with or exceeds ieee 802.3, 10base-t standards schematic EPE6243S product performance is limited to specified parameters. data is subject to chan g e without prior notice. package electrical parameters @ 25 c unless otherwise specified dimensions are in inches /mm .010 /.25 cse6243s rev. 1 5/6/03 ? optimized design to give 3 ns group delay difference over 5 mhz-10 mhz ? ? resistor network included ? common mode rejection (db min.) insertion loss ? (db max.) 1-10 mhz -6/-6.5 xmit/rcv return loss (db min.) 5-10 mhz -15/-15 xmit/rcv @ 25 mhz -16/-11 xmit/rcv @ 100 mhz xmit/rcv -30/-38 @ 200 mhz xmit/rcv -25/-27 @ 30 mhz -27/-16 xmit/rcv cut-off frequency (mhz) 1.0/ 1.5 17/19.5 xmit/rcv @ 50 mhz xmit/rcv -40/-30 crosstalk (db min.) -30/-30 1-10 mhz xmit/rcv attenuation (db min.) @ 20 mhz -8/-6 xmit/rcv @ 5 mhz -50/-32 xmit/rcv @ 10 mhz xmit/rcv -45/-30 .050 (1.27) (46 plcs) 1.00 25.40) .750 (19.05) 1.00 25.40) 1.150 (29.21) pca EPE6243S date code c l c l .750 (19.05) .080 (2.03) .400 (10.16) 1.100 (27.94) .050 (1.27) .025 (.635) 1.100 (27.94) 50 35 10 1 34 26 .075 (1.91) 3.25 (8.26) .090 (2.29) .033/.020 (.076/.508) .275 (6.99) .045 (1.43) .008/.012 (.230/.305) 1.150 (29.21) 0-8 transmit channel lpf 390 ? 63 ? 390 ? 63 ? 1:1 50,46, 42,38 49,45, 41,37 10,14, 20,24 11,15, 21,25 9,13, 19,23 12,16, 22,26 17,18 x gnd txp+ txp- txd+ txd- tx- tx+ receive channel 49.9 ? lpf 49.9 ? 1:1 48,44, 40,36 47,43, 39,35 5,8, 27,30 4,7, 29,32 3,6, 28,31 1,2, 33,34 r gnd rx+ rx- rxd- rxd+ ct
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