Audio and video interfaces play a crucial role in modern multimedia devices，They ensure smooth transmission of audio and video signals between different devices，Various types of audio and video interfaces meet diverse application scenario requirements。

In the field of audio and video interface design，Static surge protection and filtering technology play a core role。They not only ensure the reliability and stability of the equipment，It also effectively protects internal sensitive circuits from electrostatic impact，Sometimes it is necessary to purify the signal and clutter on the power line，Ensure that the signal is pure, flawless, and intact without damage。

Lei Mao provides various solutions for different protection needs of audio and video interfaces。

3.1. Simulated video electrostatic protection scheme

Advantages of the plan：Maximum transmission speed of analog video<5Mbit/s，Lei Mao uses ordinary low capacitance devices to prevent static electricity， satisfyIEC61000-4-2，Level 4，Contact discharge 20kV，Air discharge 20kV。

Single channel 0402 packaging device optional。

S-Video，The full name isSeparate Video，It is a method aimed at improving brightness during the transmission of composite video signals（Luminance/Y）And chromaticity（Chrominance/C）Video signal transmission interface for signal interference issues。

3.2 S-VIDEOInterface electrostatic surge protection scheme

Plan One、Discrete components GBLC05Cprogramme

Advantages of the plan：Lei Mao adoptsESDdiodeGBLC05CComplete the electrostatic surge protection for the interface，Discrete componentsSOD-323 Packaging，Convenient wiring，Low capacitance，IPPHigh current,18A，It can ensure the integrity of signal transmission，It can also protect against certain surges。And it complies withIEC 61000-4-2（static electricity）±30kV（air）and ±30kV（contact）standard，Has strong anti-static ability。

Option 2、Integrated componentsLCC05DT3 programme

Advantages of the plan：Lei Mao adoptsESDdiodeLCC05DT3. Complete the electrostatic surge protection for the interface，Integrated componentsSOT-23 Packaging，Save space，Low capacitance，IPPHigh current,12A，It can ensure the integrity of signal transmission，It can also protect against certain surges。And it complies withIEC 61000-4-2（static electricity）±30kV（air）and ±30kV（contact）standard，Has strong anti-static ability。

YPbPrandYCbCrThe interfaces are all types of interfaces used for transmitting video signals，They are based on the same color space model，The main difference lies in the nature of the transmitted signal，YPbPrIt's an analog signal，andYCbCrIt can be a digital signal。

3.3 YPbPr/ YCbCrInterface electrostatic surge protection scheme

Plan One、Discrete component scheme GBLC03C/GBLC05C

Advantages of the plan：Lei Mao uses three separate piecesESDDiodes complete electrostatic surge protection for interfaces，Convenient wiring，Low junction capacitance，IPP20% higher currentA/18A，It can ensure the integrity of signal transmission，It can also protect against certain surges。The anti-static ability meets the requirementsIEC 61000-4-2（static electricity）±30kV（air）and ±30kV（contact）standard。

Option 2、Integrated component solution ESDA3.3CW-4/ESDA5.0CW-4

Advantages of the plan：Lei Mao adopts an integrated chipESDDiodes complete electrostatic surge protection for interfaces，Save space，Low junction capacitance，IPPCurrent is high by 10A/7A，It can ensure the integrity of signal transmission，It can also protect against certain surges。The anti-static ability meets the requirementsIEC 61000-4-2（static electricity）±30kV（air）and ±30kV（contact）standard。

3.4 Simulated audio static protection scheme

Advantages of the plan：Lei Mao adopts two integrated low junction capacitorsLCC05DT3 Protective devices for anti-static purposes，Save space，Alternatively, a single route can be used ULC0542C ，ESDA05CTL, ESD5Z5CLWaiting for various packaging for protection ,satisfyIEC61000-4-2，Level 4

MIPI（Mobile Industry Processor Interface）interface，As a serial communication standard designed specifically for mobile devices and embedded systems，Since 2003MIPISince the launch of the alliance，Quickly becoming the focus of the industry。MIPIThe alliance has gathered, includingARM、Nokia、Italian semiconductor（ST）、Texas Instruments（TI）Top global enterprises, including，Jointly committed to developing a series of key interface standards，Intended to simplify the internal components of mobile devices such as cameras、display screen、radio frequency/Communication between baseband and other components，Thereby reducing design complexity and cost，Improve overall system performance。

4.1 low speedMIPIScreen electrostatic protection scheme

Advantages of the plan：MIPIThere are many screen interfaces，Voltage as low as 3.3V，Lei Mao uses ordinary low capacitance integrated devices to prevent static electricity， satisfyIEC61000-4-2，Level 4，Contact discharge 8kV，Air discharge 15kV。The single channel 0402 packaging device can be used for flexible board layout settings。

4.2. Low speedMIPI Interface electrostatic protection scheme

Advantages of the plan：MIPIProvide medium and low speed interface protection solutions（10M-1Gbps）Transmission speed of，Lei Mao adopts integrated device protection,Parasitic capacitance<1pf, Ensure signal integrity，satisfyIEC61000-4-2，Level 4，Contact discharge 8kV，Air discharge 15kV

4.3 high speedMIPI Interface electrostatic protection scheme

Advantages of the plan：MIPIProvide 2.5Gbit/sTransmission speed of，Lei Mao adopts integrated device protection,Parasitic capacitance<0.5pf, Ensure signal integrity，satisfyIEC61000-4-2，Level 4，Contact discharge 8kV，Air discharge 15kV。High speed interface protection scheme（1GbpsAbove 2.5Gbps ）

LVDS，NamelyLow-Voltage Differential Signaling，It is an advanced high-speed data transmission interface technology，Originally created by National Semiconductor Corporation of the United States（Currently owned by Texas Instruments）Proposed in 1994。The core advantage of this technology lies in its innovative low voltage swing and differential signal transmission mechanism，bringLVDSLow power consumption can be achieved in high-speed data transmission、Low bit error rate、Low crosstalk and low electromagnetic interference（EMI）Excellent performance。

5.1 LVDS Interface electrostatic protection scheme

Advantages of the plan：LVDSProvide 655Mbit/sTransmission speed of，Lei Mao adopts integrated device protection,Parasitic capacitance<1pf, Ensure signal integrity，satisfyIEC61000-4-2，Level 4，Contact discharge 8kV，Air discharge 15kV。

HDMI，The full name isHigh-Definition Multimedia Interface（High definition multimedia interface），Since its debut in 2002，It has become the most widely used digital interface technology in the field of audio and video，It not only supports high-quality uncompressed audio and video signal transmission，And the synchronization of audio and video is achieved through a single cable，Greatly simplifies the connection process，And I have gone through a journey from 1.0 to 2.Multiple version iterations of 1。

6.2 HDMI2.0 Electrostatic filtering protection scheme

Advantages of the plan：Lei Mao adopts multiple integrated devices for protection, Can save space，Can ensure signal integrity，Can be filtered out Noise，satisfyIEC61000-4-2（Level 4），Contact discharge 25kV，Air discharge 30kV 。

6.3 HDMI1.3 1.4 Electrostatic filtering protection scheme

Advantages of the plan：Lei Mao adopts multiple integrated devices for protection, Can save space，Can ensure signal integrity，Can be filtered out Noise，satisfyIEC61000-4-2（Level 4），Contact discharge 25kV，Air discharge 30kV 。

DVI（Digital Visual Interface）Mainly used for connecting high-definition display devices，Divided intoDVI-D（Pure digital signal）andDVI-I（Compatible with digital and analog signals）Two types。

7.1 DVIInterface electrostatic protection scheme

Advantages of the plan：Lei Mao adopts integrated device protection，capacitance<2PF，While ensuring signal integrity，Through electrostatic testing。 satisfy：satisfyIEC61000-4-2，Level 4，Contact discharge 8kV，Air discharge 15kV。 DiscreteLC05CIThe device also meets the requirements。

VGAinterface，The full name isVideo Graphics Array，Sometimes also known asD-Subinterface，yesIBMA standard interface proposed in 1987 for display devices。VGAThe interface is mainly responsible for transmitting simulationsRGBvideo signal，From a computer or other source device to a monitor、Display terminals such as projectors。This interface standard has been widely used in personal computer systems over the past few decades，It is one of the most common output interfaces on graphics cards。althoughVGA（Video Graphics Array）Relatively old，But in some occasions, their presence can still be seen。

8.1 VGAInterface electrostatic protection scheme

Advantages of the plan：Lei Mao adopts integrated device protection，capacitance<1PF，While ensuring signal integrity，Through electrostatic testing。 satisfy：satisfyIEC61000-4-2，Level 4，Contact discharge 8kV，Air discharge 15kV。Package smallerLC0504FMeet the requirements equally。

Lei Mao has a detailed plan and wiring diagram，And recommended model parameters。Please contact Lei MaoEMCLittle brother requests it。

Lei Mao mainly provides anti-static measuresTVS/ESDAnd relatedEMCcomponent（Discharge tubeTSS/GDT、Stabilizing tubeZENER、VaristorMOV、Rectifier diodeRECTIFIER、Self recovery fusePPTC、Field-effect transistorMOSFET、inductance）。

Surrounded by Lei MaoEMCEMC service customers，Self built free laboratory for testing static electricity for customersESD（30KV）、Group pulseEFT(4KV)、surge（8/20，10/700 10/1000）、Car load shedding（7637 5a/5b）Performance testing of components, etc。LeiditechKeeping up with the pulse of domestic and international technological updates，Continuously innovatingEMCProtection scheme and related devices，Target direction is small packaging，High power，Provide reliable solutions and components for domestic substitution。