Resistor values are typically 120 to 240 ohms for 3.3V opera on and 82 to 120 ohms for 2.5V
opera on.
Figure 7 - Pull Up Pull Down Termina on
Resistor values are typically for 3.3V opera on
For 2.5V opera on, the resistor to ground is 62 ohms and the resistor to supply is 240 ohms
There are numerous applica on notes on termina ng and interfacing PECL logic and the two most common methods are a single resistor to ground, Figure 6,
and a pull-up/pull-down scheme as shown in Figure 7. An AC coupling capacitor is op onal, depending on the applica on and the input logic requirements of
the next stage.
One of the most important considera ons is termina ng the Output and Complementary Outputs equally. An unused output should not be le un-
terminated, and if one of the two outputs is le open it will result in excessive ji er on both. PC board layout must take this and 50 ohm impedance matching
into account. Load matching and power supply noise are the main contributors to ji er related problems.
LVDS Applica on Diagrams
+3.3V
OE or NC
10nF
1nF
1
6
+3.3V
OE or NC
10nF
1nF
1
6
10nF
OE or NC
2
5
100
3
4
10nF
OE or NC
2
5
Receiver
100
Receiver
3
4
Figure 8 - LVDS to LVDS, internal 100Ω
Some LVDS structures have an internal 100 ohm resistor on the
input and do not need addi onal components.
Figure 9 - LVDS to LVDS, External 100Ω and AC block ing caps
One of the most important considera ons is termina ng the Output and Complementary Outputs equally. An unused output should not be le un-
terminated, and if one of the two outputs is le open it will result in excessive ji er on both. PC board layout must take this and 50 ohm impedance matching
into account. Load matching and power supply noise are the main contributors to ji er related problems.
As shown in Figure 1 below, ESD122DMXR is used for surge protection of HDMI differential lines (Figure 1). Now there are the following questions:
The operating voltage of the HDMI controller high-spee...
[size=4][color=#000000][backcolor=white]Wireless Mesh network mainly includes three types of nodes, which constitute the basic service set of Mesh. [/backcolor][/color][/size] [size=4][color=#000000][...
[i=s]This post was last edited by dontium on 2014-4-14 22:46[/i] The analysis of the circuit of PICkit3 originated from the intention of DIYing it. I redrawn this circuit and prepared to make a board....
Recruitment target: R&D personnel in the embedded field Recruitment requirements: Love the embedded industry, be helpful, love communication, and be honest. Recruitment address: Shanghai and its surro...
1. Several nouns
ABI:
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Intel®
Xeon®
6
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core processors now support the new Amazon EC2 R8i and R8i-flex instances on Amazon Web Services (AWS).
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Analog electronics
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