Ag7120 and ag7220 explain the driving scheme of HDMI signal extension amplifier | ag7120 and ag7220 design HDMI signal extension amplifier circuit reference

Taiwan ange launched HDMI Audio Video Converter HDMI Audio video switcher HDMI Audio and video extension amplifier AG7111|AG7210|AG7120|AG7220|AG7231

Its description is roughly as follows ：

AG7110/11 – HDMI 1.4b 3:1 Switch controller
AG7120 – HDMI 1.4b 1:1 ReDriver
AG7130 – HDMI 1.4b 2:1 KVM controller
AG7210 – HDMI 2.0 3:1 Switch controller
AG7220 – HDMI 2.0 1:1 ReDriver
AG7231 – HDMI 2.0 2:1 KVM controller

Today we will explain in detail HDMI Audio and video signal extension amplifier products AG7120 And AG7220 , Its performance description 、 Parameter characteristics 、 Performance comparison, application method and design circuit .

     AG7120 The chip is a digital video interface （DVI） Or HD multimedia interface （HDMI）re Driver auto compensation HDMI/DVI Cable loss . The maximum bandwidth is per channel 3.4Gbps, And provide deep color support . Its low power operation does not need external power supply .AG7120 Save a space , QFN24 encapsulation , In the expansion of 0°C to +70°C Working in the temperature range .
     AG7220 Chip is a single chip solution for high-definition multimedia , Used with HDMI2.0 The equipment HDMI Cables maintain high bandwidth data interfaces on thinner or longer devices （HDMI）RE The driver . Its maximum bandwidth is per channel 6Gbps, Can support up to [email protected] Resolution video performance . With algortec's advanced green design ,AG7220 It can support functional supply without external power supply . Compared with traditional passive cables , With AG7220,HDMI Cable manufacturers can offer thinner or longer HDMI2.0 cable , It has the same video performance .

AG7120 And AG7220 Mainly used in ：

Long cable

HDMI/DVI Cable extensions

HDMI/DVI Active cable assembly

Projector

High definition display and other devices need to extend and amplify the video signal ;

AG7120 And AG7220 The detailed parameter characteristics are as follows ：

AG7120 features

Single power supply 3.15V~5.5V

Support AC coupling and DC coupling input

Support HDMI and DVI Input

compatible HDMI 1.4b standard

Maximum TMDS Throughput up to 3.4Gbps/ passageway （ A total of 10.2Gbps）

The maximum pixel clock frequency is as high as 340MHz

Support [email protected] The resolution of the

Support for dark colors

The embedded RC To exclude external crystals

The embedded 5V to 3.3V/1.2V Regulator

High speed integration 50 Ohm terminal resistance

Signal input

Realize automatic equalization design to support cables of different lengths

Realize signal expansion design to support long cable

AG7220 features

 

compatible HDMI 2.0 standard

Support HDMI and DVI Input

Support AC coupling and DC coupling input

Maximum TMDS Throughput up to per channel 6Gbps（ A total of 18Gbps）

Support [email protected] The resolution of the

Support RGB 4:4:4/YCbCr 4:4:4/ YCbCr 4:2:2/YCbCr 4:2:0

Support for dark colors

Wideband receiver equalization ratio ：[email protected]

Programmable receiver equalization with different cable lengths

Pin selectable output swing and pre emphasis control

built-in 3.3V LDO and 1.2V LDO

Integrate 50 Ohm terminating resistor

Single power supply ：3.8V~5.5V

ESD Protect ：HBM 8KV,MM 300V

Through the above, we can roughly understand AG7120 And AG7220 Characteristic parameters , Below we will give a list of their features , In order to better understand their differences ：

AG7120 do HDMI1.4 Signal extension amplifier female to female PCB The board diagram is as follows ：

AG7220 do HDMI2.0 Video signal delay amplifier male to female PCB The board diagram is as follows ：