2 Setup and Required Equipment

Table 2-1 Crosspoint Function Table

Output Channel 1

Output Channel 2

Output Channel 3

Output Channel 4

Control

Input

Control

Input

Control

Input

Control

Input

Pins

 

Selected

Pins

 

Selected

Pins

 

Selected

Pins

 

Selected

S10

S11

1Y/1Z

S20

S21

2Y/2Z

S30

S31

3Y/3Z

S40

S41

4Y/4Z

0

0

1A/1B

0

0

1A/1B

0

0

1A/1B

0

0

1A/1B

0

1

2A/2B

0

1

2A/2B

0

1

2A/2B

0

1

2A/2B

1

0

3A/3B

1

0

3A/3B

1

0

3A/3B

1

0

3A/3B

1

1

4A/4B

1

1

4A/4B

1

1

4A/4B

1

1

4A/4B

Apply inputs to the SMA connectors J1–J8. The EVM comes with 50-Ω resistors installed to VTERM, providing a termination scheme easily adjusted to accommodate LVDS, LVPECL, or CML output structures. (See Figure 2-2).

LVDS,

LVPECL,

or CML

Vterm

50

A

SN65LVDS125 Input

Channels 1-4

B

50

Vterm

Figure 2-2. Termination for Interfacing LVDS, CML, or LVPECL Drivers

2-3

Page 15
Image 15
Texas Instruments HPL-D SLLU064A manual Termination for Interfacing LVDS, CML, or Lvpecl Drivers