High Definition Multimedia Interface - HDMI Physical Layer Overview of
Connectors
A device's external HDMI - high-definition multimedia interface -
connection shall be presented via one of the three specified HDMI
(high-definition multimedia interface) connectors, Type A, Type B or Type
C. This connector can be attached directly to the device or can be attached
via a cable adapter that is shipped with the device.
All three connectors carry all required HDMI signals (high-definition
multimedia interface signals), including a TMDS link (Transition Minimized
Differential Signaling links). The Type B connector is slightly larger and
carries a second TMDS link (Transition Minimized Differential Signaling
links), which is necessary to support very high-resolution displays using
dual link. The Type C connector carries the same signals as the Type A but
is more compact and intended for mobile applications.
Passive cable adapters between connector types are specified.
High Definition Multimedia Interface - HDMI Physical Layer Connector
Support Requirements
All features and functions are equally available to all three connectors.
High Definition Multimedia Interface - HDMI Physical Layer Dual-Link
To support DVI signals greater than 165Mpixels/sec, the dual-link
capability of the Type B connector shall be used. To support DVI signals
less than or equal to 165Mpixels/sec, single-link operation shall be used.
To support very high-speed HDMI signals (high-definition multimedia
interface signals), the dual-link capability of the Type B connector is
available. The single-link to dual-link crossover frequency for HDMI
(high-definition multimedia interface) will be defined in a future
specification and will be greater than 340Mpixels/sec. Dual-link cannot be
used for formats below that crossover frequency.
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