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| PM5350 S/UNI-ULTRA REFERENCE DESIGN ERRATA PMC-1980370 ISSUE 2 SUNI-ULTRA REFERENCE DESGIN PM5350 S/UNI-ULTRA REFERENCE DESIGN ERRATA ISSUE 2: DEC. 2000 PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS' INTERNAL USE i PM5350 S/UNI-ULTRA REFERENCE DESIGN ERRATA PMC-1980370 ISSUE 2 SUNI-ULTRA REFERENCE DESGIN CONTENTS 1 2 NEW ISSUE OF THE S/UNI-ULTRA REFERENCE DESIGN ERRATA... 1 SUMMARY OF CHANGES TO S/UNI-ULTRA REFERENCE DESIGN.... 2 2.1 RESISTORS R6 AND R7.................................................................. 2 2.2 TVREF SIGNAL ................................................................................ 2 2.3 RAVD2 CIRCUITRY.......................................................................... 2 2.4 FERRITE BEADS ............................................................................. 2 2.5 TAVD4 CIRCUITRY........................................................................... 2 PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS' INTERNAL USE ii PM5350 S/UNI-ULTRA REFERENCE DESIGN ERRATA PMC-1980370 ISSUE 2 SUNI-ULTRA REFERENCE DESGIN 1 NEW ISSUE OF THE S/UNI-ULTRA REFERENCE DESIGN ERRATA This document is the errata notice for Issue 3 of the S/UNI-ULTRA Reference Design (document number PMC-1961062). PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS' INTERNAL USE 1 PM5350 S/UNI-ULTRA REFERENCE DESIGN ERRATA PMC-1980370 ISSUE 2 SUNI-ULTRA REFERENCE DESGIN 2 2.1 SUMMARY OF CHANGES TO S/UNI-ULTRA REFERENCE DESIGN Resistors R6 and R7 The values for resistors R6 and R7 in the BOM and schematics of the reference design issue 3 are not the same. The schematics show the correct values: R6 = 929 R7 = 1.3 k 2.2 TVREF Signal The TVREF pin on page 4 of the schematics is shown to be unconnected (floating). This signal should be tied to ground. Since we recommend only one ground plane, TVREF should be just grounded. 2.3 RAVD2 Circuitry The RAVD2 circuit on page 5 of the schematics does not show the MOSFET that is required as per the data sheet errata. For the correct circuitry, please refer to the page 6 of PMC-199107 issue 3. Also, in Figure 13 of the reference design, RAVD2 should be removed from the list of analog pins to be decoupled and replaced with TAVD3. In Figure 14 of the reference design, the 0.1uF capacitor on the left side of MOSFET should be replaced with a 68uF capacitor. 2.4 Ferrite Beads The circuits for TAVD3, TAVD4, QAVD1 and QAVD2 on the page 5 of the schematics show ferrite beads. We no longer recommend ferrite beads. The ferrite beads can be replaced with 1 or 2.7 resistors. 2.5 TAVD4 Circuitry The TAVD4 pin needs a 68uF capacitor added on the device side of the resistor. PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS' INTERNAL USE 2 PM5350 S/UNI-ULTRA REFERENCE DESIGN ERRATA PMC-1980370 ISSUE 2 SUNI-ULTRA REFERENCE DESGIN NOTES PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS' INTERNAL USE 3 PM5350 S/UNI-ULTRA REFERENCE DESIGN ERRATA PMC-1980370 ISSUE 2 SUNI-ULTRA REFERENCE DESGIN CONTACTING PMC-SIERRA, INC. PMC-Sierra, Inc. 105-8555 Baxter Place Burnaby, BC Canada V5A 4V7 Tel: Fax: (604) 415-6000 (604) 415-6200 document@pmc-sierra.com info@pmc-sierra.com apps@pmc-sierra.com (604) 415-4533 http://www.pmc-sierra.com Document Information: Corporate Information: Application Information: Web Site: None of the information contained in this document constitutes an express or implied warranty by PMC-Sierra, Inc. as to the sufficiency, fitness or suitability for a particular purpose of any such information or the fitness, or suitability for a particular purpose, merchantability, performance, compatibility with other parts or systems, of any of the products of PMC-Sierra, Inc., or any portion thereof, referred to in this document. PMC-Sierra, Inc. expressly disclaims all representations and warranties of any kind regarding the contents or use of the information, including, but not limited to, express and implied warranties of accuracy, completeness, merchantability, fitness for a particular use, or non-infringement. In no event will PMC-Sierra, Inc. be liable for any direct, indirect, special, incidental or consequential damages, including, but not limited to, lost profits, lost business or lost data resulting from any use of or reliance upon the information, whether or not PMC-Sierra, Inc. has been advised of the possibility of such damage. (c) 2000 PMC-Sierra, Inc. PMC-1980370 (R2) ref PMC-1961062 (R3) Issue date: Dec. 2000 PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS' INTERNAL USE |
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