About HDMI
speed, there are a lot of explain, making it the designer in solving difficult
problems ESD select an appropriate approach. People tend to think, according to
the latest HDMI standard, that is HDMI 1.3, 340M pixels per second transfer,
the data transfer rate of up to 10.2 Gbps. This is the exact system speed argument,
but it is not the transition minimized differential signaling (TMDS)
transmission speed. In order to select an adequate ESD protection solution, and
also must take into TMDS speed.
In Recall that
according to HDMI 1.3 specification, sending 340 M pixels per second, the
system operates at up to 10.2Gbps. The key is "operates in the" six
words. That is, the clock speed of the interface will change, depending on its
top connected to the transmitter and receiver operate in the video
capabilities. Therefore, the connection to the interface of the two devices
higher resolution or color depth of the clock rate. HDMI only approaching the
required number of pixels can be transmitted to the display device (monitor,
LCD TV, etc.) on it. For example, if the high-definition digital video disc
(DVD) players, and liquid crystal display (LCD) monitor during playback 1080P
high definition video format, color depth of 48 bits, compared to the 480i
standard definition DVD playback programs, more information is to be processed.
Various
resolutions and the corresponding number of pixels per line and lines per
frame. Listed in Table 1 for each color depth, and it has a number of bits
corresponding to each pixel's color transfer. From the HDMI transmitter to the
receiver's HDMI Converter amount of data related to these variables, including the number
of frames per second refresh the display. Table 2 describes this relationship:
HDMI data
transfer rate = X * Y * F * B
Where: X =
number of pixels per line; Y = number of lines per frame; F = the number of
frames per second; B = number of bits per pixel.
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