Audio Line Matching Transformer TPA2273 is a 600/900Ω to 600Ω line matching transformer with the following features: • • • • Low profile. Conforming to FCC part 68 and CS 03 regulations. Low bridging and insertion losses. Low cost. TPA2273 Applications: Interfacing 600Ω or 900Ω line to a 600Ω load at the subscriber premises. MECHANICAL BOTTOM VIEW 0.45" 0.90" Dot at pin 1 5 1 1.00" 0.80" 10 900 Ω 5 600 Ω 4 Com 1 6 0.20 0.15" 8 PLACES 10 600 Ω 6 All dimensions are in inches Impedance 600/900 Ω 600 Ω (1 - 4/5) (6 - 10) 93/02/16 Frequency Response ± 0.5 dB 100 Hz - 20 KHz Insertion Loss 1.4 dB typ. @ 1000 Hz ISSUE: C TPA2273 ELECTRICAL Longitudinal Balance >60 dB 200 - 4000 Hz Return Loss >15 dB 200 - 4000 Hz Phase shift <5 deg. @ 200 Hz Dielectric Strength 1320 Vrms winding to winding & Windings to core Filtran Limited 229 Colonnade Road, Nepean, Ontario, K2E 7K3, Canada Tel: (613) 226-1626, Fax: (613) 226-7124. 7-4