ep1sgx25d Altera Corporation, ep1sgx25d Datasheet - Page 24

• Manufacturer Part Number: ep1sgx25d
• Description: Stratix Gx Device Family Data Sheet
• Manufacturer: Altera Corporation

2–14
Stratix GX Device Handbook, Volume 1
Figure 2–10
■
■
Figure 2–10. Receiver Input Buffer
Programmable Termination
The programmable termination can be statically set in the Quartus II
software.
termination.
Figure 2–11. Programmable Receiver Termination
If you use external termination, then the receiver must be externally
terminated and biased to 1.1 V.
external termination/biasing circuit.
Input
Pins
Programmable termination
Programmable equalizer
Figure 2–11
Programmable
shows a diagram of the receiver input buffer, which contains:
Termination
50, 60, or 75 Ω
50, 60, or 75 Ω
shows the setup for programmable receiver
Programmable
Figure 2–12
Equalizer
V
CM
shows an example of an
Differential
Altera Corporation
Buffer
Input
Differential
June 2006
Buffer
Input