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
Line Impedance
Turns Ratio
D.C.R
Insertion Loss
Frequency Response
Longitudinal Balance
Return Loss
DC Capability
Dielectric Strength
7290
ISSUE: C
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
11/07/02
229 Colonnade Road, Ottawa, Ontario, Canada K2E 7K3
Tel: (613) 226-1626 Fax: (613) 226-7124
www.filtran.com
An ISO 9001 Registered Company
FILTRAN [ FILTRAN LTD ]
