EP3SE50F780I3N Altera, EP3SE50F780I3N Datasheet - Page 260

• Manufacturer Part Number: EP3SE50F780I3N
• Description: Stratix III
• Manufacturer: Altera

Termination Schemes for I/O Standards
Figure 7–25. Stratix III LVDS I/O Standard Termination
Notes to
(1)
(2)
(3)
7–42
Stratix III Device Handbook, Volume 1
External On-Board
(Dedicated LVDS
R
Side I/O banks support dedicated LVDS output buffers.
Column I/O banks support LVDS_E_1R and LVDS_E_3R I/O standards using two single-ended output buffers.
p
OCT Receive
(Single-Ended
(Single-Ended
OCT Receive
LVDS_E_1R)
OCT Receive
LVDS_E_3R)
LVDS Output
LVDS Output
Termination
=120 ohms for LVDS_E_1R, R
Termination
with Three
with One
Network,
Network,
Output)
Resistor
Resistor
Figure
(2)
(3)
(3)
7–25:
Differential Outputs
Differential Outputs
Single-Ended Outputs
Single-Ended Outputs
p
=170 ohms, and R
External Resistor
Rp
External Resistor
LVDS
Rs
Rs
s
=120 ohms for LVDS_E_3R
Rp
Note (1)
50 Ω
50 Ω
50 Ω
50 Ω
50 Ω
50 Ω
50 Ω
50 Ω
100 Ω
100 Ω
100 Ω
100 Ω
Differential Inputs
Differential Inputs
Differential Inputs
Altera Corporation
Stratix III OCT
Stratix III OCT
Differential Inputs
Stratix III OCT
November 2007