2796A Datasheet, PDF (1/2 Pages) Bel Fuse Inc. – MODEM MAGNETICS PCMCIA V.34 Modem Transformers

MODEM MAGNETICS
PCMCIA V.34 Modem Transformers
TM00407
• Designed to match a 600Ω line to a 301Ω load
while providing isolation and balance in PCMCIA
Type II V.34 modem applications
• Qualified per Bellcore TR-TSY-000357-1
• Approved by UL and CSA
• Each transformer, while being identical electrically, has a
distinctive terminal configuration to accommodate
different PWB offsets in the PC card
• Minimum interwinding breakdown voltage of 1000 Vrms
ELECTRICAL SPECIFICATIONS at 25° C
Part
Number
Turns Ratio
± 2%
Insertion
Loss
dB
Return Loss
dB
@ 1 kHz 300 Hz - 3500 Hz
Frequency
Response
dB
200 Hz - 5 kHz
DCR
Ω
max
Pri
Sec
2796A
2796A2
2796A3
1:1
2796A4
2796A5
< 2.7
> 30
< 0.1
165
165
Harmonic
Distortion
dB
-10 dBm,
600 Hz
Longitudinal
Balance
dB
300 Hz - 3500 Hz
> 80
> 60
SCHEMATIC
2796A
2796A2
2796A3
2796A4
2796A5
1
3
Primary
6
4
Secondary
TYPICAL SPICE TRANSMISSION MODEL
153
0.5 mH
20 pF
19 k
154
3.5 H
20 pF
©2000 Bel Fuse Inc. Specifications subject to change without notice. 05.00
Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com
T4-15