10/100 Base-T Single Port Transformer Module LAN 8261- 8263 • 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 8mADC bias MECHANICAL AND SCHEMATIC (All dimensions in inches) SUGGESTED PAD LAYOUT SCHEMATIC Center-tapped inductor not included in 8261, so pin 12 connects to the transformer center tap. ISSUE: A 24/07/01 8261 - 8263 ELECTRICAL SPECIFICATION @ 25˚C Part Number Insertion Loss (dB MAX) Differential to Common Mode Rejection (dB MIN) Return Loss (dB MIN @ 100Ω) Crosstalk (dB TYP) Hipot (Vrms MIN) 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 8261 -1.0 -22 -20 -18 -12 -42 -38 -32 -50 -40 -40 82621 -1.0 -22 -20 -18 -12 -45 -40 -35 -50 -40 -40 1500 8263 -1.0 -20 -20 -18 -14 -42 -36 -33 -50 -40 -40 1500 1. Rise time optimized for National’s DP83843. An ISO 9001 Registered Company 229 Colonnade Road, Nepean, Ontario, Canada K2E 7K3 Tel: (613) 226-1626 Fax: (613) 226-7124 www.filtran.com 1500