Specifications

Guideline: Adhere to the LVDS I/O Restrictions and Differential Pad Placement Rules
For Cyclone V LVDS applications, adhere to these guidelines to avoid adverse impact on LVDS performance:
• I/O restrictions guideline—to avoid excessive jitter on the LVDS transmitter output pins.
• Differential pad placement rule for each device—to avoid crosstalk effects.
Related Information
• Cyclone V Device Family Pin Connection Guidelines
Describes the I/O restriction guidelines for the Cyclone V LVDS transmitters.
• Cyclone V Differential Pad Placement Rule and Pad Mapping Files
Provides the pad mapping spreadsheets for Cyclone V devices.
I/O Banks Locations in Cyclone V Devices
The number of Cyclone V I/O banks in a particular device depends on the device density. Each I/O bank
can simultaneously support multiple I/O standards.
The availability of I/O banks in device packages varies. For more details, refer to the related links.Note:
Figure 5-5: I/0 Banks for Cyclone V E Devices
Bank 2A Bank 1A
Bank 7A
Bank 6A
Bank 8A
Bank 5BBank 5A
Bank 4A
Bank 3BBank 3A
Altera Corporation
I/O Features in Cyclone V Devices
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Guideline: Adhere to the LVDS I/O Restrictions and Differential Pad Placement Rules
CV-52005
2013.06.21