CEPT
Matching Transformer
6797
Specially designed to match a 120Ω twisted pair to a 75Ω coaxial line in the CEPT trunk.
Features:
• Small size
• Low cost
Applications:
• Digital subscriber lines.
• High speed data transmissionover twisted wire.
• Digital PABX line cards and telephone sets.
Mechanical and Schematic
(All dimensions in inches)
SUGGESTED PAD LAYOUT
SCHEMATIC
ELECTRICAL SPECIFICATION @ 25˚C
6797
09/07/01
Part
Number
6797
Turns
Ratio
1:1.272
Inductance
(mH MIN)
0.7
Line
Impedance
(Ω)
1-6
2-4
75
120
51KHz-
102KHz
>12
Return Loss
(dB MIN)
102KHz- 2048KHz-
2048KHz
3072-KHz
>18
>14
Longitudinal
Balance
(dB MIN)
1MHz
>40
Hipot
(Vrms)
1500
ISSUE: A
An ISO 9001 Registered Company
229 Colonnade Road, Ottawa, Ontario, Canada K2E 7K3
Tel: (613) 226-1626 Fax: (613) 226-7124 www.filtran.com
FILTRAN [ FILTRAN LTD ]
