![](http://datasheet.mmic.net.cn/330000/IDT82V3255_datasheet_16416008/IDT82V3255_8.png)
List of Figures
8
June 19, 2006
Figure 1. Functional Block Diagram ............................................................................................................................................................................ 11
Figure 2. Pin Assignment (Top View) .......................................................................................................................................................................... 12
Figure 3. Pre-Divider for An Input Clock ..................................................................................................................................................................... 19
Figure 4. Input Clock Activity Monitoring ..................................................................................................................................................................... 20
Figure 5. External Fast Selection ................................................................................................................................................................................ 22
Figure 6. T0 Selected Input Clock vs. DPLL Automatic Operating Mode ................................................................................................................... 29
Figure 7. T4 Selected Input Clock vs. DPLL Automatic Operating Mode ................................................................................................................... 30
Figure 8. On Target Frame Sync Input Signal Timing ................................................................................................................................................. 38
Figure 9. 0.5 UI Early Frame Sync Input Signal Timing .............................................................................................................................................. 38
Figure 10. 0.5 UI Late Frame Sync Input Signal Timing .............................................................................................................................................. 39
Figure 11. 1 UI Late Frame Sync Input Signal Timing ................................................................................................................................................. 39
Figure 12. IDT82V3255 Power Decoupling Scheme ................................................................................................................................................... 41
Figure 13. Line Card Application ................................................................................................................................................................................. 42
Figure 14. Serial Read Timing Diagram (CLKE Asserted Low) ................................................................................................................................... 43
Figure 15. Serial Read Timing Diagram (CLKE Asserted High) .................................................................................................................................. 43
Figure 16. Serial Write Timing Diagram ....................................................................................................................................................................... 44
Figure 17. JTAG Interface Timing Diagram ................................................................................................................................................................. 45
Figure 18. Recommended PECL Input Port Line Termination .................................................................................................................................. 114
Figure 19. Recommended PECL Output Port Line Termination ................................................................................................................................ 114
Figure 20. Recommended LVDS Input Port Line Termination .................................................................................................................................. 116
Figure 21. Recommended LVDS Output Port Line Termination ................................................................................................................................ 116
Figure 22. Output Wander Generation ...................................................................................................................................................................... 120
Figure 23. Input / Output Clock Timing ...................................................................................................................................................................... 121
List of Figures