Altera Cyclone V Device Handbook page 147

5-50
Emulated LVDS, RSDS, and Mini-LVDS Termination
Figure 5-25: Emulated LVDS, RSDS, or Mini-LVDS I/O Standard Termination
The output buffers, as shown in this figure, are available in all I/O banks. R
characterization.
To meet the RSDS or mini-LVDS specifications, you require a resistor network to attenuate the output-
voltage swing.
Altera Corporation
Termination
External
On-Board
Termination
(RSDS_E_3R)
Transmitter
OCT
(RSDS_E_3R)
Transmitter
Single-Ended Outputs
OCT Receive
(Single-Ended
Output with
Single Resistor
LVDS_E_1R)
Transmitter
Single-Ended Outputs
OCT Receive
(Single-Ended
Output with
Three-Resistor
Network,
LVDS_E_3R)
Transmitter
Emulated LVDS, RSDS, and mini-LVDS
≤
1 inch
50 Ω
R
S
R 100 Ω
P
R
S
50 Ω
External Resistor
≤
1 inch
50 Ω
R
S
R 100 Ω
P
R
S
50 Ω
External Resistor
Differential Inputs
50 Ω
External
R 100 Ω
Resistor
P
50 Ω
Differential Inputs
≤
1 inch
50 Ω
R
S
R 100 Ω
P
R
S
50 Ω
External Resistor
and R values are pending
S P
Receiver
OCT
Receiver
OCT
Receiver
OCT
Receiver
I/O Features in Cyclone V Devices
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CV-52005
2014.01.10