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HIGH FREQUENCY MAGNETICS DS3/E3/STS-1 Dodecal Transformer Module * Optimized for line transceivers operating at E3, DS3 or STS-1 rates: 34.368 Mb/s, 44.736 Mb/s, 51.84 Mb/s Twelve line interface transformers in a single surface mount 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 * Interwinding breakdown voltage: 1500 Vrms min * * * * 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 TM02134 * * * ELECTRICAL SPECIFICATIONS at 25 C Turns Ratio 2% Part Number IC : Line TX S554-6500-27 1:1 RX 1:1 Primary Inductance at 100 kHz 25 C H min TX 80 RX 80 -40 C H min TX 40 RX 40 Leakage Inductance at 1 MHz H max TX 0.10 RX 0.10 Capacitance C w/w Return Loss at 1.72 MHz 75 Application1 25 C dB typ TX 25 RX 25 -40 to +85 C dB min TX 18 RX 18 pF max TX & RX 10 1. Terminated in 75 on IC side IC Side Line Side 1:1 48 47 1:1 46 45 1:1 44 43 1:1 42 41 1:1 40 39 1:1 38 37 1:1 36 35 1:1 34 33 1:1 32 31 1:1 30 29 1:1 28 27 1:1 26 25 SCHEMATIC S554-6500-27 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. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 (c)2002 Bel Fuse Inc. Specifications subject to change without notice. 05.02 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 TM02134 DS3/E3/STS-1 Dodecal Transformer Module MECHANICAL S554-6500-27 1.105 [28.07] max 0.60 [15.24] 0.48 [12.19] 0.040 [1.02] 0.645 [16.38] 0.070 [1.78] 0.088 [2.22] 0.016 0.002 [0.41 0.05] 0.040 [1.02] typ 0.024 [0.61] Suggested PCB Pad Layout R0.005 [R0.13] R0.005 [R0.13] 0.010 [0.25] min 0.004 [0.10] 0- 5 0.295 [7.49] max 0.920 [23.37] 2 x 0.060 [1.52] 2 x 0.035 [0.89] Dimensions are in inches [millimeters]. Standard dimension tolerance is 0.005 [0.13] unless otherwise noted. 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)2002 Bel Fuse Inc. Specifications subject to change without notice. 05.02 CORPORATE Bel Fuse Inc. 206 Van Vorst Street Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com 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 page 2 |
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