THS8200 Datasheet, PDF (24/97 Pages) Texas Instruments – ALL FORMAT OVERSAMPLED COMPONENT VIDEO/PC GRAPHICS D/A SYSTEM WITH THREE 11-BIT DACS,CGMS DATA INSERTION

817.3 mV
751.1 mV
Ramping Analog Output With Clipping Effect on Top and Bottom
Output After
Clipping
Output Before
Clipping
51.1 mV
0 64
255
511
767
Input Digital Codes
940 ₁₀₂₃
Figure 4–5. Effect of Clipping on Analog Output
4.5.2 Shifting
Next the video data can be shifted over a programmable amount downward. The number of codes over which to shift
the input video data is set per channel by programming csm_shift_<gy,rcr,bcb>. Shifting of the input video data can
be done downwards over 0..255 codes inside the CSM.
817.3 mV
751.1 mV
700.0 mV
Ramping Analog Output With Clipping Effect on Top and Bottom
Output After
Clipping
51.1 mV
Output After
Clipping and
Shifting
0 64
255
511
767 ^{876 9401023}
Input Digital Codes
Figure 4–6. Effect of Shifting on Clipped Analog Output
4–9