AUDIO Line Matching Transformer 7290 TLA7290 is designed to interface telecommunications equipment to a telephone line, capable of handling unbalanced DC. Applications: • Low profile • Up to 30 mA unbalanced line current • Exceeds the requirements of FCC Part 68 and CS 03 MECHANICAL AND SCHEMATIC (All dimensions in inches) ELECTRICAL SPECIFICATION @ 25˚C ISSUE: C 11/07/02 7290 Line Impedance Turns Ratio D.C.R Insertion Loss Frequency Response Longitudinal Balance Return Loss DC Capability Dielectric Strength Pri Sec Pri : Sec Pri Sec @ 1000 Hz 300 – 3500 Hz 300 – 3500 Hz @ 1.8 kHz 600 Ω 150/150 Ω 1:1 50 Ω 20 + 20 Ω 1.2 dB max 1.5 dB max > 65 dB > 18 dB 30 mA 1500 Vrms 229 Colonnade Road, Ottawa, Ontario, Canada K2E 7K3 Tel: (613) 226-1626 Fax: (613) 226-7124 www.filtran.com An ISO 9001 Registered Company