defining a degree of excellence 10BASE-T NETWORK COMPONENTS 960049A • Designed for use with AMD multi-port 10Base-T transceiver chipsets, such as the eIMR (79C984A), eIMR+ (79C985) and QuIET (79C988)/IMR2 (79C983) where digital filtering has been incorporated into the silicon • Quad design offers best space and cost efficiency per port • Low profile, surface mount packaging, rated to 225ºC peak IR reflow temperature • 2000 Vrms isolation • Filterless quad, 4-port designs with common configuration offering choice of customized EMI performance and grounding techniques ELECTRICALS AT 25ºC Part No. S553-5999-18 S553-5999-23 S553-5999-24 S553-5999-39 Insertion Loss (dB) Max 1-10MHz Return Loss (dB) Min 5MHz-10MHz Crosstalk (dB) Min 5MHz-10MHz -1.0 -1.0 -1.0 -1.0 -20 -20 -20 -20 -50 -50 -50 -50 CM-CM Rej (dB) Min 5-10MHz 50MHz 100MHz 200MHz -50 -50 -50 -50 -35 -35 -35 -35 -25 -25 -25 -25 Schematic -20 -20 -20 -20 A B C C 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 960049A SCHEMATICS (CONT'D) C MECHANICAL 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 960049A 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 960049A APPLICATION NOTES • Bel has developed these part types for use with AMD's product line of quad, 4-port PHY devices 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 4 channels of transmit and receive transformers to provide for wave shaping, high voltage isolation and EMI noise suppression. In certain applications, additional differential filtering may be required to comply with IEEE 802.3 standards. • 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. • The specific configuration of these Bel parts (Rx-Tx-Tx-Rx-Rx-Tx-Tx-Rx) is optimal for use with stacked or "double decker" RJ-45 connectors. This configuration should provide short and straight traces to the output connectors. 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