THS8200 Datasheet, PDF (52/97 Pages) Texas Instruments – ALL FORMAT OVERSAMPLED COMPONENT VIDEO/PC GRAPHICS D/A SYSTEM WITH THREE 11-BIT DACS,CGMS DATA INSERTION

The range of active video codes on the R, G, and B channels is from 64 to 940. By definition, code 64 corresponds
to blank-level output, and code 940 corresponds to peak analog output. Input codes outside this region can either
be clipped by THS8200 or can be passed, depending on the CSM setting. When passed, the user should make sure
not to overdrive the DAC outputs outside the DAC output compliance range if instantaneously high output codes
would occur.
G Channel Output Waveform
1050 mV
E’_G
940
650 mV
350 mV
50 mV
0 mV
1050 mV
350 mV DC Level Added
During Active Video Period
64
Blank Level
Active Video Period
Figure 4–41. G-Channel Output Waveform
R and B Channel Output Waveform
E’_RE’_B
940
350 mV
0 mV
350 mV DC Level Added
During Active Video Period
64
Blank Level
Active Video Period
Figure 4–42. R- and B-Channel Output Waveform
4–37