Audio TEA4477 Line Matching Transformer Applications: TEA4477 is a 1 : 1 line matching transformer with the following features. Line matching in 600 or 900 Ω circuits where no loop current handling is required. • Low cost. • Small size. • Conforming to FCC part 68 and CS 03 regulations. • Balanced center tapped windings. MECHANICAL 0.74 0.56 max 0.83 0.48 DIA 0.020 5 10 2 9 1 7 0.1 DIMENSIONS ARE IN INCHES DOT AT PIN #1 0.40 0.59 1 5 0.52 10 0.34 0.78 0.50 6 ISSUE: D 95/04/05 TEA4477.CHP BOTTOM VIEW ELECTRICAL Impedance 600 Ω : 600 Ω Insertion Loss < 0.5 dB @ 1000 Hz Frequency Response < 1.0 dB 300 - 3500 Hz Longitudinal Balance > 65 dB 300 - 3500 Hz Winding Resistance 5-1 10 -7 26 Ω nom. 34 Ω nom. Return loss > 11 dB > 14 dB Dielectric Strength 1500 V Filtran Limited 300 - 5000 Hz 500 - 3500 Hz RMS 229 Colonnade Road, Nepean, Ontario, K2E 7K3, Canada Tel:(613)226-1626, Fax:(613)226-7124. 7-10