Altera Arria V GX Starter Board Bedienungsanleitung PDF herunterladen (Seite 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

SDI

SDO

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

SDI_RX_BYPASS

AD24 2.5-V Equalizer bypass enable

SDI_RX_EN

AD23 2.5-V Device enable

SDI_RX_P

M34 1.5-V PCML SDI video input P

SDI_RX_N

M33 1.5-V PCML SDI video input N

1 2 ... 40 41 42 43 44 45 46 47 48 49 50 ... 61 62

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