🚾 👩🏼‍🤝‍👩🏻 🤾 如何在设计中开始使用USB Type-C 🥔 👩🏽‍🌾 🉑

现代嵌入式设备使用大量不同的连接器，例如USB Type-B，miniUSB，microUSB等。它们在外形尺寸，最大吞吐量和各种其他特性方面都不同。在这种情况下，最正确的解决方案是最大程度地减少使用的连接器数量，并停留在一个连接器上，对于大多数开发而言，连接器是“一个”。最有前途的是使用Type-C连接器。它结合了令人难以置信的带宽和高功率输出。苹果，华为，索尼等制造商已经在其设计中引入了Type-C连接器，逐渐放弃了“旧”连接器的使用。对嵌入式开发人员来说，更糟的是什么？

, Type-C. embedded, , - .

Type-C?

, , USB4, Thunderbolt 3 (TBT3), DisplayPort 2.0 (DP) ( USB Type-C), , Type-C, . , «», .

Type-C, .

Type-C :

VBUS –

: : 5 – 500 (2,5 ) 20 – 5 (100 ). 20 , . , 5 , Power Delivery (PD). , -, 15 (5 – 3 ). embedded-, , , (15 ) - .
Power Delivery (PD) – , «/» , . .

PD – 15 (U = 5 , I = 3 );
PD – 100 (U = 20 , I = 5 A).

CC1/CC2 – Configuration Channel (CC)

: . , , (Vconn) . PD . , PD, : , .

Vconn – 5 ;
Vconn – 200 ;
– 0–5 ;
– 400 ( PD).

SBU1/SBU2 – Sideband Use (Auxiliary Signal Pins)

: . , USB2/3.2 . USB4 , . DP AUX-. ( ) , «».

USB4 – (Serial Port) 1 /c;
DisplayPort – 720 /c. , , (TX1± TX2± RX1± RX2±). AUX- , ;
A – [-0,3–3,3 ].
USB2/3.2 – ;

D+/D- – Data (USB2.0)

: USB 2.0. . , USB3.2/USB4/TBT3/DP . , USB2.0 . .

USB 2.0 – 480 /c;
A – [-3,0–3,0 ].
USB3.2/USB4/TBT3/DP – ;

TX1± TX2± RX1± RX2± – Data (USB3.2/USB4/TBT3/DP)

: , . . USB4/TBT3/DP ( Simplex). , .

USB3.2 Gen 1 / Gen 2 – (TX1/RX1 TX2/RX2) . 5 /c (Gen1) 10 /c (Gen2) ;
USB3.2 Gen 2 x 2 – (TX1/RX1 TX2/RX2).
, USB3.X , .
USB4/TBT3/DP – (TX1/RX1 TX2/RX2). 20 /c. 40 /c ( ) 80 / .
USB 2.0 – ;

active cable ( ) . , PD , , SOP (Start of packet), , PD, ( ).

A cable with a USB Plug on each end at least one of which is a Cable Plug supporting SOP’, that also incorporates data bus signal conditioning circuits...

Type-C , , .

Active cables are USB Full-Featured Type-C Cables that incorporate repeaters in the USB 3.2 data path. All active cables, regardless of length, are expected to comply with this specification, the USB 3.2...

Type-C (Emark), SOP, , .

ReTimer () ReDriver () – , . . : , / ( ).

. . , . , – , . – , . , .

, , . , :

USB2.0 (480 /c) ~ 4 ;
USB3.2 Gen1 (10 /c) ~ 2 ;
USB3.2 Gen2 (20 /c) ~ 1 ;
USB4/TBT3 (40 /c) ~ 0.8 .

, 0,8 . ( ) ~ 0,3 .

Optically Isolated Active (OIA). 50 , , USB3.2/TBT3. SOP . , RX/TX, USB2.0 . , Vconn . OIA- USB4.

, , TBT3-, , ( 0,8 ).

. Type-C :

USB Type-C – USB3.1 Type-A / Type-B / Type micro-B;
USB Type-C – USB2.0 Type-A / Type-B / Type mini-B / Type micro-B.

Type-C.

(plug) (receptacle):

USB2.0 (D+/D-) A6–A7, B6–B7 – . , . A6–A7 .
CC1/CC2 , CC (A5) Vconn (B5). CC PD. Vconn . , Vconn .

, , . embedded- USB2/USB3, .

, USB , , .

. , .

! , , Part Status. Active, . , , .

. , , RX/TX- (USB3.2/USB4/TBT3/DP), , 16 :

24 – ;
16/14 – , (TX1± TX2± RX1± RX2±), USB 2.0, PD . : CX90M-16P Hirose Connector.

. , .

:
- Surface Mount / – . : CX90B1-24P Hirose Connector;
- Board Cutout / – . : CX90M-16P Hirose Connector.
Surface Mount /

Board Cutout /

:
- Right Angle / – . : CX90B1-24P Hirose Connector;
- Vertical/ – . : CX80B1-24P Hirose Connector;
- Vertical Right Angle / – , . : KUSBX-SL-CS1N14-B Kycon.
Right Angle /

Vertical/

Vertical Right Angle /

:
- – . : 12401544E4#2A Amphenol;
- – . , 16/14 , USB2.0. : KUSBX-SL-CS1N14-B Kycon;
- - – , – . . : 632723300011 Wurth Elektronik.
-

! , .

, . (Ingress Protection), IP65, IPX2 . , . , , - .

IPX7

UFP (Upstream Facing Port) Sink, USB-, - . UFP DFP (Downstream Facing Port) Source- ( ) , .

USB2.0;
USB2/3.2.

USB2.0

A5/B5 (CC1/CC2) (Rd resistor) «» 5,1 ± 20 %, . Rp–Rd . , , CC- , . , USB 2.0, , CC- Rd. Rd , « », . Ra , Rd.
A6–B6 (D+) A7–B7 (D-). .
Type-C , (Shield). «» . . . .
RX1/TX1, RX2/TX2, SBU1/SBU2 , .