Are there different RREF resistor requirements for Stratix V ES vs production devices?

Description

Yes, there are different RREF resistor value requirements for Stratix V ES devices and Stratix V Production devices.

When using a Stratix V ES device, a 2.0k /- 1% ohm resistor should be used to connect each RREF pin to GND.

When using a Stratix V Production device, a 1.8k /- 1% ohm resistor should be used to connect each RREF pin to GND.