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LVDS Display Interface with i.MX6Q

Question asked by Rodney Roeber on Sep 10, 2019
Latest reply on Sep 11, 2019 by Rodney Roeber

Hello,

  I need to interface an OLED display with an i.MX6Q using both i.MX6Q LVDS channels. Parameters for the devices are shown below and the OLED LVDS pin equivalent circuit is attached.  The receiver does not have internal termination so I will use a couple of 50R resistors on each LVDS pair.  Does the interface also require voltage level converters?  If so, is there a suitable IC to accomplish this?

 

Thank you.

 

                                                                i.MX6 LVDS DC parameters

Parameter

Symbol

Test Conditions

Min

Max

Unit

Output Differential Voltage

VOD

Rload=100 Ω between padP and padN

250

450

mV

Output High Voltage

VOH

IOH = 0 mA

1.25

1.6

V

Output Low Voltage

VOL

IOL = 0 mA

0.9

1.25

Offset Voltage

VOS

1.125

1.375

 

                                                                        OLED Receiver LVDS parameters

Item

Symbol

Conditions

Min

Typ

Max

Unit

Power Supply Voltage

VDD1IF

 

1.62

1.8

1.98

V

Differential Voltage Range

VID

RL=100Ω

100

 

300

mV

Differential Voltage Deviation

(Between Lanes)

⊿VID

RL=100Ω

-10

 

10

%

Input voltage range

VI

RL=100Ω

650

 

1500

mV

Common Voltage

VIC

RL=100Ω

800

 

1350

mV

Common Voltage Deviation

(Between Lanes)

⊿VIC

RL=100Ω

-100

 

100

mV

Outcomes