Audio TEA4989 Line Matching Transformer TEA4989 is an Audio Line matching transformer with the following features. • Low profile. • Conforms to FCC part 68, Canadian CS 03 regulations. Applications: Line matching in 600 & 900 Ω circuits with up to 10 mA d.c. imbalance. MECHANICAL 1 6 3 4 TEA4989 DOT AT PIN 1 TEA4989.CHP 95/04/11 ISSUE: D 6 2 5 3 4 All dimensions are in inches ELECTRICAL Turns Ratio Insertion Loss 1 1000 Hz TEA4989-1 TEA4989 TEA4989-1 1:1 1 c.t. : 1 c.t. 1.5 dB 1.5 dB Frequency Response 300 - 5000 Hz < 1.0 dB < 1.0 dB Longitudinal Balance 300 - 5000Hz > 65 dB > 65 dB 88 Ω nom. 106 Ω nom. 88 Ω nom. 106 Ω nom. > 11 dB > 11 dB 1500 Vrms 1500 Vrms Winding Resistance Return Loss Dielectric Strength Filtran Limited (1 - 3) (6 - 4) 300 - 5000 Hz 229 Colonnade Road, Nepean, Ontario, K2E 7K3, Canada Tel:(613)226-1626, Fax:(613)226-7124 8-9