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HIGH FREQUENCY MAGNETICS
T1/E1 Octal Transformer Modules
* * * Optimized for PMC-Sierra PM4354 Quad COMET Eight transformers in one surface-mount package Two modules: S553-6500-A7 with eight transformers S553-6500-A8 with eight transformers and IC-side surge protection devices Tight ratio tolerance assists impedance matching * * Meets ITU-T G.703 return loss from -40 to +85 C * UL 1950 approved: S553-6500-A7 file number E150991 S553-6500-A8 pending
Return Loss at 102 kHz 120 Application2 Interwinding Capacitance pF max 25 C dB typ TX 35 35 18 18 RX 27 27 -40 to +85 C dB min TX 17 17 RX 24 24
TM01109
* * *
Operating temperature range -40 to +85C 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
Turns Ratio 2% IC : Line Primary Inductance1 H min Leakage Inductance1 H max
Part Number
DCR max
TX S553-6500-A7 S553-6500-A8 1 : 2.42 1 : 2.42
RX 1 : 2.42 1 : 2.42
IC Side 950 950
IC Side 0.3 0.3
IC Side 0.6 0.6
Line Side 1.3 1.3
1. Inductance at 10 kHz, leakage inductance at 1 MHz 2. Terminated in 25.4 for TX and 18.2 for RX
SCHEMATIC
S553-6500-A7
IC Side
S553-6500-A8
Line Side 1 : 2.42
IC Side 1 TXI+ 1 TXI1 2 3 1 : 2.42 1 : 2.42
Line Side 40 1 TXO+ 39 38 1 TXO37 1 RXI+
1 TXI+ 1,2 3.3V 1 TXI-
1 2 3
1 RXO+ 4 1 RXO- 5
1 RXO+ 4 1 RXO- 5 2 TXI+ 2 TXI6 7 8
S U R G E P R O T E C T I O N D E V I C E S
40 1 TXO+ 39 38 1 TXO37 1 RXI+ 36 1 RXI-
1 : 2.42
36 1 RXI1 : 2.42 35 2 TXO+ 34 33 2 TXO1 : 2.42 32 2 RXI+
2 TXI+ 1,2 GND 2 TXI-
6 7 8
1 : 2.42
35 2 TXO+ 34 33 2 TXO-
2 RXO+ 9 2 RXO- 10
1 : 2.42
32 2 RXI+ 31 2 RXI-
2 RXO+ 9 2 RXO- 10 3 TXI+ 11 3 TXI12 13
31 2 RXI1 : 2.42 30 3 TXO+ 29 28 3 TXO27 3 RXI+ 26 3 RXI1 : 2.42 25 4 TXO+ 24 23 4 TXO1 : 2.42 22 4 RXI+ 21 4 RXI-
3 TXI+ 11 3,4 3.3V 12 3 TXI- 13 3 RXO+ 14 3 RXO- 15 4 TXI+ 16 3,4 GND 17 4 TXI- 18 4 RXO+ 19 4 RXO- 20
1 : 2.42
30 3 TXO+ 29 28 3 TXO27 3 RXI+ 26 3 RXI-
1 : 2.42
3 RXO+ 14 3 RXO- 15 4 TXI+ 16 4 TXI17 18
1 : 2.42
1 : 2.42
25 4 TXO+ 24 23 4 TXO22 4 RXI+ 21 4 RXI-
1 : 2.42
4 RXO+ 19 4 RXO- 20
(c)2005 Bel Fuse Inc.
Specifications subject to change without notice. 05.05
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com page 1
HIGH FREQUENCY MAGNETICS
TM01109
T1/E1 Octal Transformer Modules
MECHANICAL
0.070 [1.78] ref
S553-6500-A7 S553-6500-A8
1.100 [27.94] max
0.050 [1.27]
0.480 [12.19]
0.645 [16.38]
0.070 [1.78]
0.050 [1.27]
0.020 0.002 [0.51 0.05]
0.030 [0.77] Suggested PCB Pad Layout
o0.015 [0.39]
S553-6500-A7
o0.005 [0.13] 0.225 [5.72] max
0.004 [0.10]
0.212 [5.38] ref 0.950 [24.13]
0.035 [0.89]
0.600 [15.24]
0.005 [0.13] min
0- 5
S553-6500-A8
0.265 [6.73] ref 0.950 [24.13]
o0.015 [0.39] o0.005 [0.13]
0.004 [0.10]
0.295 [7.49] max 0.035 [0.89]
0.005 [0.13] min 0.600 [15.24]
0- 5
Dimensions are in inches [millimeters]. Standard dimension tolerance is 0.005 [0.13] unless otherwise noted.
S553-6500-A8 Surge Protection Devices TVS Diode Array: Semtech SRDA3.3-4 Number of Arrays: 4 Note: Surge protection provided by the Bel module is equivalent to that advertised in the Semtech SRDA3.3-4 product specification.
CORPORATE
Bel Fuse Inc. 206 Van Vorst Street Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
Tape and Reel Packaging 44 mm wide by 24 mm pitch; 13 inch OD, 6 inch ID 200 modules per reel, maximum Meets ANSI/EIA 481-2 Carrier Tape Standards - JEDEC SO Package
(c)2005 Bel Fuse Inc.
Specifications subject to change without notice. 05.05
FAR EAST
Bel Fuse Ltd. 8F / 8 Luk Hop Street San Po Kong Kowloon, Hong Kong Tel 852-2328-5515 Fax 852-2352-3706 www.belfuse.com
EUROPE
Bel Fuse Europe Ltd. Preston Technology Management Centre Marsh Lane, Suite G7, Preston Lancashire, PR1 8UD, U.K. Tel 44-1772-556601 Fax 44-1772-888366 www.belfuse.com
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