10/100 BASE-T Single Port Transformer Modules LAN 8240-8247 • Meets all IEEE 802.3 and ANSI X3.263 standards including 350µH OCL with 8mA bias • IC grade transfer-molded package suitable for reflow soldering temperatures up to 235°C • Applicable with AMD, Kendin Semiconductor and Quality Semiconductor transceivers MECHANICAL AND SCHEMATIC (All dimensions in inches) SUGGESTED PAD LAYOUT SCHEMATIC 1 SCHEMATIC 2 TRANSMIT TRANSMIT 16 16 1 15 2 10 14 3 14 15 11 1 12 11 RECEIVE RECEIVE 6 10 7 7 3 2 9 8 5 6 TRANSMIT 16 10 14 12 12 15 11 RECEIVE 1 7 3 5 2 6 SCHEMATIC 3 NOTE: 8245 incorporates an autotransformer, so there is no connection to the TX transformer center tap. ELECTRICAL SPECIFICATIONS @ 25˚C ISSUE: A 16/11/01 8240 - 8247 Part Number Turns Ratio (±5%) Receive Transmit 8240 1:1 √2:1 8241 1:1 √2:1 8242 1:1 √2:1 8243 1:1 8244 Insertion Loss 100 kHz - 100 MHz (dB MAX) Return Loss (dB MIN) Crosstalk (dB MIN) Schematic 30 MHz 60 MHz 80 MHz 30 MHz 60 MHz 100 MHz -1.0 -16 -12 -10 -45 -38 -34 -1.0 -16 -12 -10 -45 -38 -34 -1.0 -16 -12 -10 -45 -38 -34 √2:1 -1.0 -16 -12 -10 -45 -38 -34 1:1 1.25:1 -1.0 -16 -12 -10 -45 -38 -34 8245 1:1 1: √2 -2.0 -18 -12 -11 -45 -38 -34 8246 1:1 √2:1 -1.0 -16 -12 -10 -45 -38 -34 8247 1:1 1:√2 -2.0 -16 -11 -10 -45 -38 -34 An ISO 9001 Registered Company 1 2 1 3 1 3 1 3 229 Colonnade Road, Nepean, Ontario, Canada K2E 7K3 Tel: (613) 226-1626 Fax: (613) 226-7124 www.filtran.com Hipot (Vrms MIN) 1500 1500 1500 1500 1500 1500 1500 1500