Specifications

Figure 5-24: 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
S
and R
P
values are pending
characterization.
Receiver
OCT
Transmitter
ReceiverTransmitter
50 Ω
50 Ω
100 Ω
≤ 1 inch
External Resistor
R
S
R
S
R
P
50 Ω
50 Ω
100 Ω
≤ 1 inch
External Resistor
R
S
R
S
R
P
OCT
Emulated LVDS, RSDS, and mini-LVDSTermination
Single-Ended Outputs Differential Inputs
Transmitter
50 Ω
50 Ω
100 Ω
External
Resistor
R
P
Receiver
OCT
Single-Ended Outputs Differential Inputs
Transmitter
50 Ω
50 Ω
100 Ω
≤ 1 inch
External Resistor
R
S
R
S
R
P
Receiver
OCT
(RSDS_E_3R)
External
On-Board
Termination
(RSDS_E_3R)
OCT Receive
(Single-Ended
Output with
Single Resistor
LVDS_E_1R)
OCT Receive
(Single-Ended
Output with
Three-Resistor
Network,
LVDS_E_3R)
To meet the RSDS or mini-LVDS specifications, you require a resistor network to attenuate the output-
voltage swing.
You can modify the three-resistor network values to reduce power or improve the noise margin. Choose
resistor values that satisfy the following equation.
Altera Corporation
I/O Features in Cyclone V Devices
Send Feedback
5-49
Emulated LVDS, RSDS, and Mini-LVDS Termination
CV-52005
2013.06.21