2808J Datasheet, PDF (1/2 Pages) Bel Fuse Inc. – ADSL MAGNETICS Transformer

ADSL MAGNETICS
Transformer
TM99AF
• Designed for the Globespan’s low-power ADSL chip set • Operating temperature range of 0° C to +85° C
• UL and CSA approved
• Minimum interwinding breakdown voltage of 1500 Vrms
ELECTRICALS at 25° C
Part Number
Turns Ratio
± 3%
TX : Line
RX : Line
2808J
1:4
1 : 2.05
* Measured at RX with line side shorted
Inductance
µH min
TX
Leakage
Inductance*
µH max
25.0
7.0
DCR
Ω
max
Chip
Line
1.60
2.40
Interwinding
Capacitance
pF max
30
SCHEMATIC
1
TX
3
2
RX
4
Chip
8
6
Line
7
5
Line
©1999 Bel Fuse Inc. Specifications subject to change without notice.
Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com