EP3SE50F780I3N Altera, EP3SE50F780I3N Datasheet - Page 340

• Manufacturer Part Number: EP3SE50F780I3N
• Description: Stratix III
• Manufacturer: Altera

Differential Pin Placement Guidelines
9–24
Stratix III Device Handbook, Volume 1
Using Corner and Center Left/Right PLLs
■
■
If a differential bank is being driven by two left/right PLLs, where
the corner left/right PLL is driving one group and the center
left/right PLL is driving another group, there must be at least one
row of separation between the two groups of DPA-enabled channels
(see
frequencies.
No separation is necessary if a single left/right PLL is driving
DPA-enabled channels as well as DPA-disabled channels.
Figure
9–20). The two groups can operate at independent
Altera Corporation
November 2007