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| PM5342 SPECTRA-155 DATASHEET ERRATA PMC-990899 ISSUE 1 SONET/SDH PAYLOAD EXTRACTOR/ALIGNER PM5342 SPECTRA-155 SONET/SDH PAYLOAD EXTRACTOR/ALIGNER DATASHEET ERRATA ISSUE 1 : JULY 1999 PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS' INTERNAL USE PM5342 SPECTRA-155 DATASHEET ERRATA PMC-990899 ISSUE 1 SONET/SDH PAYLOAD EXTRACTOR/ALIGNER REVISION HISTORY Issue No. 1 Issue Date Details of Change July 1999 This document contains changes to the datasheet revision 4 to add the specification of power-up ramp rate requirement at low temperature PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS' INTERNAL USE PM5342 SPECTRA-155 DATASHEET ERRATA PMC-990899 ISSUE 1 SONET/SDH PAYLOAD EXTRACTOR/ALIGNER CONTENTS 1 2 ISSUE 1 ERRATA ..................................................................................... 2 SPECTRA-155 DATASHEET DISCREPANCIES ...................................... 3 2.1 TITLE PAGE - INCORRECT DOCUMENT ISSUE NUMBER ........ 3 3 POWER-UP RAMP RATE REQUIREMENT AT LOW TEMPERATURE .... 4 PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS' INTERNAL USE 1 PM5342 SPECTRA-155 DATASHEET ERRATA PMC-990899 ISSUE 1 SONET/SDH PAYLOAD EXTRACTOR/ALIGNER 1 ISSUE 1 ERRATA This issue 1 errata notifies that changes have been made to the issue 4 of the PMC-970133 data sheet. The issue 4 datasheet and issue 1 errata supersede all prior editions and versions. PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS' INTERNAL USE 2 PM5342 SPECTRA-155 DATASHEET ERRATA PMC-990899 ISSUE 1 SONET/SDH PAYLOAD EXTRACTOR/ALIGNER 2 Legend SPECTRA-155 DATASHEET DISCREPANCIES 1. unaltered text is unchanged to add context to changes 2. new material is bold and Italicized 3. obsolete material is struck out 4. comments specific to this document are in italics 5. A vertical bar in left margin indicates that this is a new item which was not present in the previous issue of this document. 2.1 Title Page - Incorrect Document Issue Number The title page shows the datasheet to be issue 5. The datasheet is issue 4. The issue number is correctly shown in the header of the datasheet PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS' INTERNAL USE 3 PM5342 SPECTRA-155 DATASHEET ERRATA PMC-990899 ISSUE 1 SONET/SDH PAYLOAD EXTRACTOR/ALIGNER 3 POWER-UP RAMP RATE REQUIREMENT AT LOW TEMPERATURE Description The power supply voltage (VDD[29:0], TAVD[3:1], RAVD[4:1], QAVD[3:1]) require a minimum voltage ramp rate during up power up. If the power ramp is too slow the SPECTRA-155 will be unable to lock to received data. The required ramp rate is a strong function of temperature, as shown in Table 1. Table 1 Maximum Power Supply Voltage Power-up Ramp Time vs. Temperature Tambient (C) 25 0 -40 Maximum Ramp Time Requirement (10% to 90% voltage ramp) 50ms 1ms 1s Upon incorrect power-up ramp at low temperature, some devices may not lock to reference clock (RROOLV=1 in register 40h) and to data (RDOOLV=1 in register 40h). In this condition, the reference clock output (RCLK pin L17 and RXC L20 ) may be DC or very low frequency. Devices that are not powered up correctly will recover normal operation when the ambient temperature rises. Once operating normally, a device will continue to operate normally over the full rated temperature range. PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS' INTERNAL USE 4 PM5342 SPECTRA-155 DATASHEET ERRATA PMC-990899 ISSUE 1 SONET/SDH PAYLOAD EXTRACTOR/ALIGNER 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 Information: document@pmc-sierra.com Corporate Information: info@pmc-sierra.com Application Information: apps@pmc-sierra.com (604) 415-4533 Web Site: http://www.pmc-sierra.com 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) 1999 PMC-Sierra, Inc. PMC-990107 (R1) ref PMC-960924 (R5) Issue date: Jan 1999 PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS' INTERNAL USE |
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