V.90 Modem Transformer 7250 • Suitable for modem speeds up to V.90/56kpbs • Complies with UL1459 safety norms • Reflects 600Ω on Primary with 294Ω Secondary load • Thin (PCMCIA) Profile • Operating Temperature Range: -40°C to +105°C Mechanical and Schematic (All dimensions in inches) SUGGESTED PAD LAYOUT SCHEMATIC Part Nu mber Turns Ratio (±2%) 7250 1:1 Longitudinal Balance (dB MIN) Total Harmonic Distortion (dB TYP) DCR @ 20ºC, ±10% (Ω TYP) Inse r tion Loss (dB TYP) Return Loss (dB MIN) F r eque ncy Re sponse (dB) 1 kHz 0.2 - 4 kHz 0.2 - 4 kHz 0.06 - 1 kHz 1-4 kHz 600 Hz, -10 dBm 150 Hz, -3 dBm Pri Sec 0.2mA, 2sec 2.65 25 ±0.25 60 40 -86 -61 156 145 1250 Hipot (V AC) ISSUE: B 06/02/03 7250 ELECTRICAL SPECIFICATION @ 25˚C 229 Colonnade Road, Ottawa, Ontario, Canada K2E 7K3 Tel: (613) 226-1626 Fax: (613) 226-7124 www.filtran.com An ISO 9001 Registered Company