PM5357 S/UNI-622-POS
ERRATA
PMC-2001584
ISSUE 1
S/UNI-622-POS REFERENCE DESIGN ERRATA
PM5357
S/UNI-622-POS
SATURN USER NETWORK INTERFACE
(622-POS)
REFERENCE DESIGN ERRATA
ISSUE 1: DECEMBER 2000
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
PM5357 S/UNI-622-POS
ERRATA
PMC-2001584
ISSUE 1
S/UNI-622-POS REFERENCE DESIGN ERRATA
REVISION HISTORY
Issue
No.
1
Issue Date
December,
2000
Details of Change
This document contains errata information corresponding to the
issue 2 of Reference Design document PMC-1981070. This fixes
minor documentation errors, improvements and application hints.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
PM5357 S/UNI-622-POS
ERRATA
PMC-2001584
ISSUE 1
S/UNI-622-POS REFERENCE DESIGN ERRATA
CONTENTS
1
2
ISSUE 1 ERRATA ........................................................................................................................... 1
REFERENCE DESIGN DOCUMENTATION DISCREPANCIES: .................................................... 2
2.1
2.2
2.3
2.4
3
TRACE IMPEDANCE SHOULD BE 50OHMS NOT 100 OHMS IN FIGURE 16 ............... 2
CHANGE THE 5V 77.76MHZ OSCILLATOR TO A LOW JITTER TYPE........................... 3
C47 CLARIFICATION IN THE BOM ................................................................................. 3
VCC TO XC1701L SHOULD BE 3.3 V AND NOT 5V ....................................................... 3
APPLICATION NOTES: .................................................................................................................. 4
3.1
3.2
3.3
CAUTION ON USING INDUCTORS TO FILTER POWER SUPPLIES............................. 4
CONNECTING A TTL SD FROM ODL TO SD PECL TYPE INPUT OF S/UNI-622-POS.. 5
INTERFACING A TTL SINGLE ENDED 77.76MHZ OSCILLATOR INTERFACE TO
REFCLK+/- PECL INPUTS............................................................................................... 6
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
i
PM5357 S/UNI-622-POS
ERRATA
PMC-2001584
ISSUE 1
S/UNI-622-POS REFERENCE DESIGN ERRATA
LIST OF FIGURES
FIGURE 1: TRACE IMPEDANCE CORRECTION......................................................................................... 2
FIGURE 2: INDUCTOR TRANSIENTS MAY DAMAGE CMOS CIRCUITS ................................................... 4
FIGURE 3: INDUCTOR TRANSIENTS CLAMPED BY DIODES................................................................... 5
FIGURE 4: TTL TO PECL SD INPUT OF S/UNI-622-POS............................................................................ 6
FIGURE 5: TTL TO SINGLE ENDED PECL INTERFACE ............................................................................. 6
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
i
PM5357 S/UNI-622-POS
ERRATA
PMC-2001584
ISSUE 1
S/UNI-622-POS REFERENCE DESIGN ERRATA
1
ISSUE 1 ERRATA
This issue 1 contains errata applied to the Issue 2 PMC-1981070, S/UNI-622-POS Reference
Design. The issue 2 Reference Design and issue 1 errata supersede all prior editions and
versions.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
1