EDP to LVDS interface converter

EDP ​​to LVDS converter is mainly used for EDP input to LVDS output image transmission, decoding high-speed EDP signal into differential LVDS data, completing data encoding and decoding functions. This board converts DisplayPort data signal into 8 pairs of serial LVDS differential output.

EDP to LVDS converter

Specifications of EDP to LVDS Converter Board

Input single

EDP signal2-Wire/4-Wire

Output single

single or dual-channel LVDS 6/8bit signals.

operating temperature

Wide temperature working range: -30℃ ~ +80℃

power requirements

The board supports a wide voltage input of 9V~19V

Interface converter parameters


EDP ​​to LVDS converter is mainly used for EDP input to LVDS output image transmission, decoding high-speed EDP signals into differential LVDS data, and completing data encoding and decoding functions. DP to LVDS converter converts DisplayPort data signals into 8 pairs of serial LVDS differential outputs.
1. Industrial grade, wide temperature parameters, operating temperature: -30℃~+80℃,
2. Input voltage 3.3V (default 3.3V) (Note: Be sure to check whether the power cord is correctly connected and the power supply voltage is correct before powering on, otherwise the motherboard will be damaged.)
3. EDP input signal type: Support EDP signal 2-Wire/4-WireeDP @1.62/2.7Gbps conversion to single or dual channel LVDS 6/8bit signal.
4. LVDS output signal: Support single 6-bit, single 8-bit, dual 6-bit, dual 8-bit LVDS signals. The default output is 1920×1080, and the highest resolution supported is
WXGA (2560×1600) 60HZ. Supports most LVDS interface screens on the market.
5. EDP input interface is FFC_0.5mm_30pin/I-PEX_20455-30P DuPont 20-pin 2×10 pin socket/female socket/standard DP terminal.
6. Low-power chip solution, signal conversion only requires 70mW, power consumption is much less than other solutions on the market, and heat generation is small.
7. Use imported high-performance MCU control
8. Features: This board has the characteristics of simple operation, reliable performance, and excellent performance.

EDP ​​to LVDS converter considerations

1. EDP ​​to LVDS converter electrostatic protection: When touching the EDP ​​to LVDS converter, be careful to prevent static electricity to avoid damaging components.
2. EDP ​​to LVDS converter configuration: Confirm that the EDP ​​to LVDS converter settings fully meet the requirements of the display.
3. LCD screen: EDP ​​to LVDS converter is suitable for TFT LCD screens with a power supply of 3.3V or 5V (default 3.3) and an LVDS interface.
4. LCD screen connection components: Different LCD screens may use different connectors and different pin signal arrangements. Please be sure to carefully confirm before powering on to avoid burning the screen and board.
5. Inverter: LCD screens without built-in inverters need to be equipped with inverters. The matching inverter should be selected according to the backlight parameters of the LCD screen.
6. Inverter cable: Different inverters generally have different input signals, and matching cables need to be selected. Improper connection may damage the inverter.
7. Signal connection cable: This cable is very important for display quality. It is required to use high-quality shielded cables. The length of LVDS signal cables should be controlled within 60cm as much as possible, and the length of EDP signal cables should be controlled within 30cm as much as possible.
8. Power input: 3.3V DC input, the ripple is required to be less than 120mV Vp-p as much as possible. Power fluctuations will affect the life of the product, and may also affect the display quality and even damage the product. The total power of the power supply depends on the LCD screen and the inverter.

EDP ​​to LVDS converter Interface Description
interfacefunctionConnector descriptionRemark
CN1EDPinput interfaceFFC_0.5mm_30pin/Support up and down connection 
CN1EDPinput interfaceConnector used :20455-030E-12 (I-PEX)
Corresponding connector : 20453-030T (I-PEX)
CN3EDPinput interfaceDupont double row pin2.0mm 2×10P,20PIN,2.0mm_pitchdefaultNC
CN7DPenterDPseat20Pinmother seatDisplayportdefaultNC
CN6LVDSinput interfaceDupont double row pin2.0mm2×15P,30PIN,2.0mm_pitch 
CN5Inverter interfaceMolex 1.25mm-6pin/SMDSleeping stickerdefaultNC
CN8Inverter interfacePH2.0mm-6P,2.0Pitch,single row,180°, socketSMDSleeping stickerdefaultNC
CN10Inverter interfacePH2.0mm-6P,2.0Pitch,single row,180°, socketSMDSleeping stickerdefaultNC
CN2Debug interfaceMolex 1.25mm-2pindefaultNC
EDP ​​to LVDS converter test points
VCC5Vtest point4.755.5V120mVby external module
3.3V3.3Vtest point3.133.243.46V120mV 
1.8V1.8Vtest point1.71.751.85V100mV 
BL-ENBacklight enable35V  
BL-PWMbacklight  PWM35V  
EDP input of EDP to LVDS converter
3LANE1_NEDPchannel1Output negative pole4LANE1_PEDPchannel1Output positive
5GNDGND6LANE0_NEDPchannel0Output negative pole
7LANE0_PEDPchannel0Output positive8GNDGND
9AUX_NEDPchannelAUXOutput negative pole10AUX_PEDPchannelAUXOutput positive
11GNDGND12VCC3.33.3Vpowered by
13VCC3.33.3Vpowered by14NCNC
21GNDGND22BL_ENLCD backlight enable
23BL_PWM/ADJLCD backlight brightness adjustment24NCNC
25NCNC26BL_POWERLCD backlight power supply
27BL_POWERLCD backlight power supply28BL_POWERLCD backlight power supply
29BL_POWERLCD backlight power supply30NCNC
LVDS output of EDP to LVDS converter
7TXO0-odd channel channel1negative electrode8TXO0+odd channel channel1positive electrode
9TXO1-odd channel channel2negative electrode10TXO1+odd channel channel2positive electrode
11TXO2-odd channel channel3negative electrode12TXO2+odd channel channel3positive electrode
15TXOC-Clock negative pole of odd channel16TXOC+The clock positive of the odd channel
17TXO3-odd channel channel4negative electrode18TXO3+odd channel channel4positive electrode
19TXE0-even channel channel1negative electrode20TXE0+even channel channel1positive electrode
twenty oneTXE1-even channel channel2negative electrodetwenty twoTXE1+even channel channel2positive electrode
twenty threeTXE2-even channel channel3negative electrodetwenty fourTXE2+even channel channel3positive electrode
27TXEC-Clock negative pole of even channel28TXEC+Clock positive pole of even channel
29TXE3-even channel channel4negative electrode30TXE3+even channel channel4positive electrode
EDP to LVDS converter possible fault links

When the display system is abnormal, the following links need to be judged. By checking them step by step, the problem can usually be determined.
1.EDP to LVDS converter (such as jumper, LVDS signal setting);
2.Display (consider controller, signal cable, connection, display, PC signal setting);
3.Backlight (related to controller, cable, backlight tube);
4.Cable (such as LVDS cable, EDP cable);
5.MCU (display settings such as refresh rate, etc.);
6.No display:If the connection is incorrect, or there is no power (such as no power input, power switch is not turned on), or the signal output by the PC is not within the adaptability of this controller, it may cause no display.
7.Image position:It may be that the source EDP output timing does not meet the standard. The image display position can be adjusted through the EDP output terminal. If it still cannot adapt, you may wish to replace other EDP output terminals for testing. In addition, some video distributors may also have an impact.

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FPC/cable/interface customization

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