I/O Standards Support
Figure 11–9 shows the mini-LVDS receiver and transmitter signal
waveforms.
Figure 11–9. Transmitter Output Signal Level Waveforms for mini-LVDS Note (1)
Single-Ended Waveform
Positive Channel (p) = V
OH
V
OD
Negative Channel (n) = V
OL
V
OS
Ground
Differential Waveform
V
OD
0 V
V
OD
Note to Figure 11–9:
(1) The VOD specifications apply at the resistor network output.
Designing with mini-LVDS
Similar to RSDS, Cyclone II devices support the mini-LVDS output
standard using the LVDS I/O buffer types. For transmitters, the LVDS
output buffer can be used with the external resistor network shown in
Figure 11–10. The resistor values chosen should satisfy the equation on
page 11-8.
11–10
Cyclone II Device Handbook, Volume 1
Altera Corporation
February 2007
ALTERA [ ALTERA CORPORATION ]
