S558-5999-K8 Datasheet, PDF (1/2 Pages) Bel Fuse Inc. – 10/100BASE-T LAN MAGNETICS Single Port Transformer Modules

10/100BASE-T LAN MAGNETICS
Single Port Transformer Modules
• Meets all relevant IEEE 802.3 requirements
• Appropriate for use in cable modem applications
• Low profile, surface mount packaging rated to 225° C
peak IR reflow temperature
• Small form factor for board layout efficiency
• Operating temperature 0° to 70° C
• Storage temperature -40° to +100° C
• Minimum interwinding breakdown voltage of 1500 Vrms
ELECTRICAL SPECIFICATIONS at 25° C
Part Number
S558-5999-K8
S558-5999-Y8
Turns Ratio
Insertion
Loss
dB max
Return Loss
dB min
Common to
Differential
Mode
Rejection
dB min
Common to
Common
Mode
Rejection
dB min
Crosstalk
dB min
TX
RX
100kHz to 100kHz to 30MHz to 60MHz to
100MHz
30MHz
60MHz
80MHz
100kHz to 100MHz
1MHz 30MHz 60MHz 100MHz
1CT : 1CT 1CT : 1CT
-1.0
-16
16 - 20log
(f/30MHz)
-10
-40
-30
-65
-55
-45
-35
1CT : 1CT 1CT : 1CT
-1.0
-16
16 - 20log
(f/30MHz)
-10
-38
-30
-60
-50
-40
-30
SCHEMATIC
Line Side
TXCT 1
TX+ 2
S558-5999-K8
TX
1CT : 1CT
Chip Side
16 TXCT
15 TX+
Line Side
RXCT 1
RX+ 2
S558-5999-Y8
RX
1CT : 1CT
Chip Side
16 RXCT
15 RX+
TX- 3
RX- 6
RX
1CT : 1CT
14 TX-
11 RX+
RX- 3
TX- 7
TX
1CT : 1CT
14 RX-
11 TX+
RX+ 7
RXCT 8
10 RX-
9 RXCT
TX+ 6
TXCT 8
10 TX-
9 TXCT
©2000 Bel Fuse Inc. Specifications subject to change without notice. 12.00
Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com