Altera Arria V GX Starter Board - Manual (Page 45)

Chapter 2: Board Components 2–37
Components and Interfaces
November 2013 Altera Corporation Arria V GX Starter Board
Reference Manual
Table 2–38 lists the cable equalizer lengths.
Figure 2–11 is an excerpt from the LMH0384 cable equalizer data sheet that shows the
SDI cable equalizer. On this starter board, the output is a single-ended output, with
the negative channel driving a load local to the board.
Table 2–39 summarizes the SDI video input interface pin assignments, signal names,
and functions.
Table 2–38. SDI Cable Equalizer Lengths
Data Rate (Mbps) Cable Type Maximum Cable Length (m)
270
Belden 1694A
400
1485 140
2970 120
Figure 2–11. SDI Cable Equalizer
BYPASS
MUTE
REF
1.0 μF
75 Ω
37.4 Ω
1.0 μF
1.0 μF
CD
SDI
SDI
SDO
SDO
CD
MUTE
MUTE
REF
BYPASS
AEC+ AEC–
75 Ω
MUTE
Coaxial Cable
SDI Adaptive
Cable Equalizer
To FPGA
5.6 nH
Table 2–39. SDI Video Input Interface Pin Assignments, Schematic Signal Names, and Functions
Board
Reference (U19)
Schematic
Signal Name
Arria V GX
Pin Number
I/O Standard Description
7 SDI_RX_BYPASS AD24 2.5-V Equalizer bypass enable
14 SDI_RX_EN AD23 2.5-V Device enable
11 SDI_RX_P M34 1.5-V PCML SDI video input P
10 SDI_RX_N M33 1.5-V PCML SDI video input N