S554-6500-20 Datasheet, PDF (1/2 Pages) Bel Fuse Inc. – HIGH FREQUENCY MAGNETICS DS3/E3/STS-1 Mini-Octal Transformer Module

HIGH FREQUENCY MAGNETICS
DS3/E3/STS-1 Mini-Octal Transformer Module
TM02133
• Optimized for line transceivers operating at E3, DS3
or STS-1 rates: 34.368 Mb/s, 44.736 Mb/s, 51.84 Mb/s
• Eight transformers in a single surface mount package
• Miniature octal 32-pin platform provides 33% area
reduction compared to standard octal package
• Meets ITU-T G.703 return loss from -40° to +85° C
from 860 kHz to 51.55 MHz
• UL 1950 approved: file number E150991
• Operating temperature range -40° to +85°C
• Meets IEC 695, 2-2 flammability requirements
• PWB Process Capability: standard printed wiring board
assembly techniques, total-immersion cleaning
• Reliability testing: Shock, vibration, temperature cycling,
temperature - humidity - bias
• Interwinding breakdown voltage: 1500 Vrms min
ELECTRICAL SPECIFICATIONS at 25° C
Part Number
Turns Ratio
±2%
IC : Line
TX
RX
Primary Inductance
at 100 kHz
25° C
µH min
TX
RX
-40° C
µH min
TX
RX
Leakage
Inductance
at 1 MHz
µH max
TX
RX
Capacitance
C w/w
pF max
TX & RX
Return Loss at 1.72 MHz
75Ω Application¹
25° C
dB typ
TX
RX
-40 to +85° C
dB min
TX
RX
S554-6500-20 1 : 1
1:1
80
80
40
40
0.09 0.09
10
25
25
18
18
1. Terminated in 75 Ω on IC side
SCHEMATIC
The module is symmetrical and
either side can be connected
to the IC or to the line.
All transformers will support
either TX or RX operation.
IC Side
1
2
3
4
5
S554-6500-20
1:1
1:1
1:1
Line Side
32
31
30
29
28
6
27
1:1
7
26
8
25
9
1:1
24
10
23
11
1:1
22
12
21
1:1
13
20
14
19
1:1
15
18
16
17
©2002 Bel Fuse Inc. Specifications subject to change without notice. 04.02
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com
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