Datasheet

350 mV
0 mV
Active Video Period
Blank Level
Analog Output
Codes to DACs
960
512
700 mV
64
E’
cr
, E’
cb
Analog Output of Cr and Cb Channels Without Sync Insertion
Blanking Interval
E’
Y
Y Channel Output Waveform
1050 mV
650 mV
350 mV
50 mV
0 mV
Active Video Period
Blank Level
350 mV DC Level Added
During Active Video Period
Analog Output
Codes to DACs
940
64
THS8200
www.ti.com SLES032D –JUNE 2002–REVISED JUNE 2013
4.8.4 SMPTE-Compatible YPbPr Output With Sync Signal Inserted on Y Channel Only
In this mode, the output color space is YCrCb. The sync signal is inserted on the Y channel only.
Figure 4-44. Y-Channel Output Waveform
The input code range of the Y channel is from 64 to 940, but the range of input codes of Cr and Cb is from
64 to 960.
Figure 4-45. Analog Output of Cr and Cb Channels Without Sync Insertion
The blanking level of all channels is at 350 mV. Note that for the Pb and Pr output channels, there is no dc
offset added, so DAC input code 0 now corresponds to 0 V dc output. Whether or not offset is added to
the DAC outputs is determined from the setting of the dtg2_rgb_mode_on register.
4.8.5 SMPTE-Compatible YPbPr Output With Sync Signal Inserted on All Channels
In this mode, sync signals are inserted on all three channels Y, Cr, and Cb. The Y channel output is
identical to that of Section 4.8.4. The Pb and Pr channel outputs are shown below. The range of input
codes to the Y channel is from 64 to 940. The range of input codes to the CrCb channels is from 64 to
960.
Copyright © 2002–2013, Texas Instruments Incorporated Detailed Functional Description 55
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