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 • • TM02134 • 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 UL 1950 approved: file number E150991 ELECTRICAL SPECIFICATIONS at 25° C Turns Ratio ±2% Part Number IC : Line S554-6500-27 Primary Inductance at 100 kHz 25° C µH min -40° C µH min Leakage Inductance at 1 MHz Capacitance C w/w µH max pF max Return Loss at 1.72 MHz 75Ω Application1 25° C dB typ -40 to +85° C dB min TX RX TX RX TX RX TX RX TX & RX TX RX TX RX 1:1 1:1 80 80 40 40 0.10 0.10 10 25 25 18 18 1. Terminated in 75 Ω on IC side Line Side IC Side SCHEMATIC S554-6500-27 1 1:1 47 2 3 1:1 4 The module is symmetrical and either side can be connected to the IC or to the line. 5 All transformers will support either TX or RX operation. 1:1 1:1 24 30 29 1:1 28 27 22 23 32 31 1:1 20 21 34 33 1:1 18 19 36 35 1:1 16 17 38 37 14 15 40 39 1:1 12 13 42 41 10 11 44 43 1:1 8 9 46 45 1:1 6 7 48 1:1 26 25 ©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 DS3/E3/STS-1 Dodecal Transformer Module TM02134 MECHANICAL S554-6500-27 0.040 [1.02] 1.105 [28.07] max 0.60 [15.24] 0.48 [12.19] 0.088 [2.22] 0.645 [16.38] 0.016 ±0.002 [0.41 ±0.05] 0.070 [1.78] 0.024 [0.61] 0.040 [1.02] typ Suggested PCB Pad Layout R0.005 [R0.13] R0.005 [R0.13] 0.010 [0.25] min 0˚- 5˚ 0.004 [0.10] 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 ©2002 Bel Fuse Inc. Specifications subject to change without notice. 05.02 CORPORATE FAR EAST EUROPE Bel Fuse Inc. 206 Van Vorst Street Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com 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 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