S553-2793-03

defining a degree of excellence TOKEN RING/FIBER APPLICATION FILTER MODULE • Designed for use with Microlinear ML6680 Token Ring to Fiber chipset • Available with additional differential filtering 960037A • Robust surface mount packaging, rated for 225ºC peak IR reflow temperature • 100 ohms UTP output impedance • 2000 Vrms isolation ELECTRICALS AT 25ºC Part No. OCL (µH) Min Insertion Loss (dB Max) 8MHz 16MHz 24MHz Attenuation (dB) Min 30MHz Return Loss (dB) Min 1-17MHz 17-25MHz Common to Common Mode Rej (dB) Typ 5MHz 20MHz 200MHz Crosstalk (dB) Min 5MHz 16MHz 24MHz Schematic Package Style S553-2793-03 1100 S556-5999-51 1100 -0.8 -1.0 -1.8 -0.8 -1.0 -1.8 N/A -10 -16 -16 -9 -9 -30 -30 -30 -30 -20 -20 -50 -50 -50 -50 -40 -40 A B 1 2 SCHEMATICS A B MECHANICALS 1 2 Specifications subject to change without notice. Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 • Tel: 201-432-0463 • Fax: 201-432-9542 • E-Mail: BelFuse@belfuse.com Website: http://www.belfuse.com defining a degree of excellence 960037A TOKEN RING/FIBER APPLICATION FILTER MODULE APPLICATION CIRCUIT APPLICATION NOTES • Bel has developed a series of transformer modules for Microlinear's Token Ring to Fiber conversion chipsets. Each module includes 400 ohm transmit and 100 ohm impedance matched, high voltage isolation transformers, in addition to EMI and noise suppression common mode chokes. • Optional filtering available to suppress unwanted noise in the differential signal above 30MHz. • Bel's low profile, surface mount packaging is ideal for high speed pick and place machinery. Parts can be shipped on tape and reel for high speed placement. Construction processes have been implemented for thermal compatibility with high temperature IR reflow assembly processing. Post dipping of leads assist with PC board solderability. Each part is optically inspected to meet rigid coplanarity requirements. Corporate Office Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302-4496 Tel: 201-432-0463 Fax: 201-432-9542 E-Mail: BelFuse@belfuse.com Internet: http://www.belfuse.com Far East Office Bel Fuse Ltd. 8F/8 Luk Hop Street San Po Kong Kowloon, Hong Kong Tel: 852-2328-5515 Fax: 852-2352-3706 European Office Bel Fuse Europe Ltd. Preston Technology Management Centre Marsh Lane, Preston PR1 8UD Lancashire, U.K. Tel: 44-1772-556601 Fax: 44-1772-888366