HDMI Cable
The Transition Minimized Differential Signaling [TMDS] lines are used on a number of interfaces, P&D, HDMI, and DVI to name a few.
The TMDS signal carries R,G,B and clock through
four differential pairs, which occupy 8 pins of a 19-pin connector [shown below].
The operational voltage is 3.3 volts with a trace termination impedance of 50 ohms, DC linked, CML based signals.
intersil {TMDS Regenerators with Multiplexers, ISL54102}
Maxim {HDMI/DVI Low-Frequency Switching, MAX4929}
nxp {PCIe / DisplayPort-to-DVI / HDMI level shifters, PTN330x}
Pericom {4-Differential Channel, 2:1 Mux/DeMux, DVI/HDMI Compliant Signal Switch based on TMDS Signaling Standard, PI3HDMI412}
Texas Instruments, TI {DisplayPort to TMDS Translator, SN75DP129}
TranSwitch {High-speed TMDS repeater devices for DVI/HDMI digital video applications, TCX-4238x}
| Pin Number | Signal Name | Pin Number | Signal Name |
| 1 | TMDS Data 2+ | 20 | SHELL |
| 2 | TMDS Data 2 Shield | 19 | Hot Plug Detect |
| 3 | TMDS Data 2- | 18 | +5V Power |
| 4 | TMDS Data 1+ | 17 | Ground |
| 5 | TMDS Data 1 Shield | 16 | DDC Data |
| 6 | TMDS Data 1- | 15 | DDC Clock |
| 7 | TMDS Data 0+ | 14 | No Connect |
| 8 | TMDS Data 0 Shield | 13 | CEC |
| 9 | TMDS Data 0- | 12 | TMDS Clock- |
| 10 | TMDS Clock+ | 11 | TMDS Clock Shield |
ACON {HDMI A Type}
Leoco {High Definition Media Input, HDMI Socket, HDMI Plug}
Molex {HDMI Connector Manufacturer}
Tyco Electronics {HDMI Connectors}
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