Altera Serial Digital Interface (SDI) MegaCore Function - Manual (Page 51)

Chapter 3: Functional Description 3–21
Block Description
February 2013 Altera Corporation Serial Digital Interface (SDI) MegaCore Function
User Guide
Figure 3–11 shows the transmitter clocks for different video standards.
Figure 3–11. Transmitter Clocks—Arria GX, Arria II GX, Arria V, Cyclone IV GX, Cyclone V,
Stratix II GX, Stratix IV, and Stratix V Devices
Notes to Figure 3–11 :
(1) This frequency can be either 74.175 or 74.25 MHz, to support 1.4835 or 1.485 Gbps HD-SDI respectively.
(2) The multiplexer must not be in the device.
(3) This frequency can be either 148.35 or 148.5 MHz, to support 2.967 or 2.970 Gbps HD-SDI respectively.
(4) You can source both 148.5 MHz and 148.35 MHz together if the additional clock port is enabled.
SDI MegaCore
Function
74.XX MHz ( 1)
from reference clock
Serial Data
HD-SDI
SDI MegaCore
Function
148.XX MHz ( 3)
from reference clock
Serial Data
3G-SDI or Triple Standard
SDI MegaCore
Function
67.5 MHz
from PLL or Pin
Serial Data
SD-SDI
SDI MegaCore
Function
67.5 MHz
74.XX MHz ( 1)
Serial Data
( 2)
Dual Standard
SDI MegaCore
Function
148.35 MHz (4)
Serial Data
3G-SDI or Triple Standard (with additional reference clock port)
148.5 MHz