defining a degree of excellence 10BASE-T NETWORK COMPONENTS 960059B • Designed for use with Crystal Semiconductor C88904 10Base-T PHY transceiver • Family of design options offered with common footprints and pinouts to offer optimized EMI suppression • Dual, 2-port and quad, 4-port designs to maximize cost and board space efficiencies • Low profile, surface mount packaging, rated to 225ºC peak IR reflow temperature • 2000 Vrms isolation ELECTRICALS AT 25ºC Part No. S553-5841-14 S553-5841-16 S553-5841-28 S553-5841-29 Insertion Loss (dB) Max 1-10MHz OCL (µH) Min TX/RX Return Loss (dB) Min 5MHz-10MHz Crosstalk (dB) Min 1MHz-10MHz -1.0 -1.0 -1.0 -1.0 140/200 140/200 140/200 140/200 -15 -15 -15 -15 -35 -35 -35 -35 CM-CM Rej (dB) Min 10-30MHz 30-100MHz -40 -40 -40 -- -30 -30 -30 -- Schematic Package Style A B C D 1 2 2 2 SCHEMATICS A B 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: [email protected] Website: http://www.belfuse.com defining a degree of excellence 10BASE-T NETWORK COMPONENTS 960059B SCHEMATICS (CONT'D) C D MECHANICALS 1 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: [email protected] Website: http://www.belfuse.com defining a degree of excellence 10BASE-T NETWORK COMPONENTS 960059B MECHANICALS (CONT'D) 2 APPLICATION CIRCUIT 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: [email protected] Website: http://www.belfuse.com defining a degree of excellence 10BASE-T NETWORK COMPONENTS 960059B APPLICATION NOTES • Bel has developed a variety of dual, 2-port and quad, 4-port part types for use with Crystal Semiconductor's product line of dual, 2-port and quad, 4-port PHY transceivers that incorporate digital filtering techniques within the silicon itself. Bel's "filterless magnetics" are optimized for this specific application and create a very cost efficient design solution. Each Bel part type contains transmit and receive transformers to provide for wave shaping, high voltage isolation and EMI noise suppression. • Bel has designed these parts as a family of parts with common footprint and pinouts to enable the designer to customize the use of common mode choke for optimum system performance. • In multi-port system applications, good PCB layout and proper grounding techniques are very critical to achieve FCC class A and B equipment approvals. Bel recommendations are available and can be provided by contacting our engineering department or your local sales representative. • 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: [email protected] 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