T3/DS3/E3/STS-1 TEW5550 Input Transformer TEW5550 is designed to be used as a receive transformer in the following applications on 75 Ω coaxial lines. • T3/DS3 44.736 MBPS • E3 34.368 MBPS • STS-1 51.84 MBPS Approved for use with: – SSI 78P2362 Return Loss exceeds the requirements of CCITT G.703. MECHANICAL 4 White dot at pin 1 Top view 3 Line Device 8.8 5 8.1 6 66 54 42 1 3 2 13 1 7.0 All dimensions are in mm. 5.5 max ISSUE: B TEW5550 5550.chp Recommended foot print ELECTRICAL SPECIFICATION Line Impedance (Ohms) Turns ratio Inductance (µH) TEW5550 (4 - 6) 75 (4 - 6) : (3 - 1) 1:1 (4 - 6) > 40 Return Loss G.703 Dielectric Strength (Vrms) 1500 Filtran Limited 229 Colonnade Road, Nepean, Ontario, Canada. K2E 7K3, Tel : (613) 226 -1626 Fax : (613) 226 -7124 5-10