Related Manuals for Realtek RTL8366
Summary of Contents for Realtek RTL8366
- Page 1 RTL8366/8369 & RTL8212 6/9-PORT 10/100/1000MBPS SWITCH CONTROLLER and 10/100/1000 DUAL ETHERNET TRANSCEIVER LAYOUT GUIDE Rev. 1.1 29 August 2005 Track ID: JATR-1076-21...
- Page 2 Layout Guide COPYRIGHT ©2005 Realtek Semiconductor Corp. All rights reserved. No part of this document may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any means without the written permission of Realtek Semiconductor Corp.
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Page 3: Table Of Contents
....................10 IGURE EPARATE ERDES YSTEM VIA A 8. RTL8212 C ........................10 IGURE OMPONENT OOTPRINT 9. RTL8212 S ..........................10 IGURE OLDER OOTPRINT 10. UTP A .......................12 IGURE PPLICATION IRCUIT WITH RANSFORMER RTL8366/8369 & RTL8212 Layout Guide Track ID: JATR-1076-21 Rev. 1.1... -
Page 4: General Description
EEPROM is offered for internal register configuration. The 6/9th port of the RTL8366/8369 implements a GMII/MII/RGMII interface for connecting with an external PHY or MAC in specific applications. This interface could be connected to an external CPU or RISC in 1 WAN + 4 LAN or 1 WAN + 8 LAN Router applications. -
Page 5: General Design And Layout Guide
• The RREF pin of the RTL8366/8369 and the MDI_REF pin of the RTL8212 must connect to GND via a 2.49K +/- 1% Ohm resister. This resister must be placed as close as possible to the RTL8366/8369 and RTL8212. -
Page 6: Rsgmii Pcb Layout Guidelines
Avoid this Type of Routing for Long Lengths Preferred Differential Pair Routing for Long Lengths Resin-rich Areas Fiberglass Bundles of Dielectric of Dielectric Figure 1. Long Trace Layout for RSGMII RTL8366/8369 & RTL8212 Layout Guide Track ID: JATR-1076-21 Rev. 1.1... -
Page 7: Figure 2. Trace Width And Spacing Recommendation For Microstrip
• Place AC coupling capacitors near output pins of differential pairs. • Locate capacitors for coupled traces at the same location along the differential traces and near output pins of differential pairs. RTL8366/8369 & RTL8212 Layout Guide Track ID: JATR-1076-21 Rev. 1.1... -
Page 8: Figure 4. Symmetrical Routing Into Ac Caps
(Cap placement is not in same location & symmetric) Figure 4. Symmetrical Routing Into AC Caps • RSGMII layout reference is shown in Figure 5. Figure 5. RSGMII Layout Reference RTL8366/8369 & RTL8212 Layout Guide Track ID: JATR-1076-21 Rev. 1.1... -
Page 9: Mdi Differential Layout Reference
• Keep differential pairs as close as possible and route both traces as identically as possible, meaning width, length, and location. • Avoid vias and layer change if possible. • MDI Differential layout reference is show in Figure 6. Figure 6. MDI Differential Layout Reference RTL8366/8369 & RTL8212 Layout Guide Track ID: JATR-1076-21 Rev. 1.1... -
Page 10: Bead
PCB. • The following figures are examples of an RTL8212 footprint. Figure 8. RTL8212 Component Side Footprint Figure 9. RTL8212 Solder Side Footprint RTL8366/8369 & RTL8212 Layout Guide Track ID: JATR-1076-21 Rev. 1.1... - Page 11 Layout Guide 3.3. Clock Circuit • Place the crystal as close to the RTL8366/8369 as possible. • Surround the clock with ground trace to minimize high-frequency emissions. • Use only one 1.5K pull up external resistance to 3.3V for MDIO.
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Page 12: Transformer Options
1000pF/ 2KV Figure 10. UTP Application Circuit with Transformer Realtek Semiconductor Corp. Headquarters No. 2, Industry East Road IX, Science-based Industrial Park, Hsinchu, 300, Taiwan, R.O.C. Tel: 886-3-5780211 Fax: 886-3-5776047 www.realtek.com.tw RTL8366/8369 & RTL8212 Layout Guide Track ID: JATR-1076-21 Rev. 1.1...