ep2c35 Altera Corporation, ep2c35 Datasheet - Page 98

• Manufacturer Part Number: ep2c35
• Description: Cyclone Ii Device Family Data Sheet
• Manufacturer: Altera Corporation

Operating Conditions
Figure 5–1. Receiver Input Waveforms for Differential I/O Standards
Notes to
(1)
(2)
(3)
5–8
Cyclone II Device Handbook, Volume 1
V
V
The p – n waveform is a function of the positive channel (p) and the negative channel (n).
ID
ICM
is the differential input voltage. V
Figure
is the input common mode voltage. V
Single-Ended Waveform
Differential Waveform (Mathematical Function of Positive and Negative Channel)
5–1:
V
ICM
(2)
ID
= |p – n|.
ICM
V
V
ID
ID
= (p + n)/2.
(1)
(1)
V
ID
(1)
0 V
p − n (3)
Positive Channel (p) = V
Negative Channel (n) = V
Ground
Altera Corporation
February 2008
IH
IL