HD3SS460_15 Datasheet, PDF (14/31 Pages) Texas Instruments – HD3SS460 4 x 6 Channels USB Type-C Alternate Mode MUX

HD3SS460
SLLSEM7A – JANUARY 2015 – REVISED MARCH 2015
USB SS and DP as Alternate Mode (continued)
USB3 Upstream Port
www.ti.com
RX1+
RX1-
0.1uF _TX1+
TX1-
0.1uF _TX2+
TX2-
RX2+
RX2-
No AC Coupling Caps
SSRX SSTX
HD3SS460
ML0+
ML0-
ML1+
ML1-
ML2+
ML2-
ML3+
ML3-
DP Sink
Figure 4. Diagram for a Type C Interface Using DP as Alternate Mode – Sink/Device/Dock
9.2.1 Design Requirements
DESIGN PARAMETERS
VCC
Decoupling capacitors
AC Capacitors
Control pins
EXAMPLE VALUES
3.3 V
0.1 µF
75-200nF (100nF shown) USBSS TX p and n lines require AC capacotprs. Alternate
mode signals may or may not require AC capacitors
Controls pins can be dynamically controlled or pin-strapped. The POL signal is
controlled by CC logic in the Type-C ecosystem.
9.2.2 Detailed Design Procedure
The reference schematics shown in this document are based upon the pin assignment defined in the Alternate
mode over Type C specification as shown in Figure 5 below.
Figure 5. Pin Assignment – Alternate Mode Over Type C
14
Submit Documentation Feedback
Product Folder Links: HD3SS460
Copyright © 2015, Texas Instruments Incorporated