Design method and reference circuit of type C to hdmi+ PD + BB + usb3.1 hub (rj45/cf/tf/ sd/ multi port usb3.1 type-A) multifunctional expansion dock

    There is a story about Taiwan ange AG9311 Can design multi-function USB TYPEC Products such as docking stations or extenders , The purpose of this kind of product ： Yes TYPEC Interface laptop or TYPE-C Smart phones and other accessories of the interface are used to realize mobile screen projection or MAC The port realizes multi-function real-time operation 、 Resource sharing, etc .

   AG9311 There are two types of packaging AG9311MAQ And AG9311MCQ, The performance differences between the two are as follows ：

Now we want to design a multifunctional USB TYPEC turn HDMI Development dock , And realize TYPEC turn HDMI+ PD+ BB + USB3.1 HUB(RJ45/CF/TF/ CD/ Multiport USB3.1 Type-A) Function required AG9311MAQ To design , Now let's explain in detail AG9311MAQ Performance characteristics of ：

 AG9311MAQ Design USB TYPE-C turn HDMI+PD20V Charge +BB+USB3.1（RJ45/ Card reader /USB3.1 Type-A) Structure block diagram

  AG9311MAQ Design USB TYPE-C turn HDMI+PD20V Charge +BB+USB3.1（RJ45/ Card reader /USB3.1 Type-A) The schematic reference circuit is explained as follows ：

1.AG9311MAQ In the design TYPEC turn HDMI Some original circuit diagrams are as follows ：

2. AG9311MAQ In the design PD3.0 The schematic diagram reference circuit of the fast charging part is as follows ：

 3.AG9311MAQ In the design USB3.0 HUB Multifunctional extended output part , Such as RJ45 SD card TF card MI SD card 3.5 Audio output   Refer to the following figure for the original circuit diagram of other functions ;

Besides , We can also integrate other functions, such as USB-C turn VGA, In addition, the output of high-end sound quality effect is required , Need to add extra USB TYPEC Audio chip SSS1530 To achieve , We will explain it step by step later .

AG9311MAQ To achieve multi-function TYPEC Complete reference circuit schematic diagram of docking station or extender ：

AG9311MAQ Schematic reference circuit