LF8279

FAST ETHERNET 10BASE-T/100BASE-TX TRANSFORMER MODULES Networking Components LF 82 71 ELECTRICAL CHARACTERISTICS @25 C Rise Time & Fall Time @5.0ns (Max), Hi-Pot Test @60Sec, 1500Vrms, OCL @8mA DC Bias 350uH (Min) Insertion Loss (dB Max) 1~100 MHz -1.0 -1.0 Return Loss (dB Min) 2~30 40 50 MHz -18 -17 -14.5 -18 -17 -14.5 60~80 -12 -12 1 Cross Talk (dB Min) 30 60 MHz 100 -35 -35 Com. To Com. Rejection Ratio (dB Min) 1~60 60~100 MHz -40 -40 -30 -30 Diff. To Com. Mode Rejection (dB Min) 1~60 60~100 MHz -40 -40 -30 -30 Turns Ratio TX/RX ( 5%) 1 MHz 1:1 / 1:1 1:1 / 1:1 o Model LF8271 LF8279 -65 -55 -45 -65 -55 -45 MECHANICAL CONSTRUCTION SCHEMATICS LF8271 1 7 5 A RX B 2 3 LF8271 DATE CODE 6 15 11 12 10 TX E C 14 16 D F H G I LF8279 1 7 5 2 3 15 11 6 RX UNIT : mm / inch A = 20.30 0.254 / 0.799 0.010 B = 10.00 0.254 / 0.394 0.010 C = 5.50 0.254 / 0.217 0.010 D = 3.20 0.30 / 0.126 0.012 E = 1.50 / 0.059 (REF) F = 2.54 / 0.100 (TYP) G = 0.50 0.127 / 0.020 0.005 H = 17.78 / 0.700 (TYP) I = 7.62 / 0.300 (TYP) TX 14 16 10 12 DELTA ELECTRONICS, INC. (TAOYUAN PLANT CPBG) 252, SAN YING ROAD, KUEI SAN INDUSTRIAL ZONE, TAOYUAN SHIEN, TAIWAN, R.O.C. TEL: 886-3-3591968; FAX: 886-3-3591991 Http://www.deltaww.com/products/networking A-17 Free Datasheet http://www.datasheet4u.com/ ...