LAN 10/100 Base-T Single Port Transformer Module 6790 • Provides excellent EMI filtering • Designed for use with data grade unshielded twisted pair cable (UTP-5) • Suitable for adapter card cable and multiport applications • Meets IEEE 802.3 and ANSI X3.263 standards, including 350µH OCL with 8mA DC bias MECHANICAL AND SCHEMATIC (All dimensions in inches) SCHEMATIC SUGGESTED PAD LAYOUT 1.000 .700 .100 6790 FD/C .500 RD+ 1 7 RX+ CT 3 5 CT RD- 2 6 RX- TD+ 16 10 TX+ .400 .540 .080 12 CT CT 14 .100 TD- 15 .018 TYP 11 TX- 1CT:1CT .030 .268 .010±.002 .009±.003 .700±.005 0˚-8˚ .030±.004 UNLESS OTHERWISE SPECIFIED, ALL TOLERANCES ARE ±0.010 ISSUE: B 26/06/03 6790 ELECTRICAL SPECIFICATION @ 25˚C Part Number 6790 Insertion Loss (dB Max) Differential to Common Mode Rejection (dB Min) Return Loss (dB Min @ 100Ω ) Crosstalk (dB Typ) Hipot (Vrms) 0.1-100 MHz 1-30 MHz 40 MHz 50 MHz 60-80 MHz 30 MHz 60 MHz 100 MHz 30 MHz 60 MHz 100 MHz -1.0 -18 -18 -16 -12 -50 -45 -40 -55 -50 -50 Turns Ratio @ 20 kHz, 0.5 V: (1-2):(7-6)=1CT:1CT±2% (15-16):(11-10)=1CT:1CT±2% Inductance @ 100kHz, 100mV, 8mA: 350µH Min (15-16) 350µH Min (1-2) 1500 229 Colonnade Road, Ottawa, Ontario, Canada K2E 7K3 Tel: (613) 226-1626 Fax: (613) 226-7124 www.filtran.com An ISO 9001 Registered Company