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參數資料
| 型號： | THS8210PFP |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP80 |
| 封裝： | POWER, PLASTIC, TQFP-80 |
| 文件頁數： | 16/73頁 |
| 文件大小： | 2053K |
| 代理商： | THS8210PFP |
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THS8200/8210
‘ALL-FORMAT’ OVERSAMPLED COMPONENT VIDEO/PC GRAPHICS D/A SYSTEM WITH
THREE 11 BIT DAC’S, CGMS DATA INSERTION AND 525P MACROVISION
TM COPY
PROTECTION
SLES032—6/18/02 3:33 PM
POST OFFICE BOX 655303
DALLAS TEXAS 77265
23
Copyright 2001 Texas Instruments Incorporated
PRODUCT PREVIEW information concerns products in the
formative or design phase of development. Characteristic data
and other specifications are design goals. Texas Instruments
reserves the right to change or discontinue these products
without notice.
The CSM block allows the user to specify the behavior of THS8200/10 with such ‘reduced-swing’ input video
codes. It consists of 1/ an optional clipping of the input video data at a high and low limit, where the limits are
individually programmable per channel, 2/ a downward shift of the input video data, where the shift amount is
individually programmable per channel, and 3/ a multiply (magnitude scaling) function of the video data, where the
multiplier coefficient is individually programmable per channel.
Clipping
Clipping (limiting) of the video input data can be turned on or off on a per channel basis, and selectively at the high
and/or low end by programming registers csm_<gy,rcr,bcb>_<high,low>_clip_on. The high/low clipping values can
be programmed on a per channel basis using registers csm_clip_<gy,rcr,bcb>_<high,low>.
The figure below shows a typical situation to clip ITU-R601 sampled video signals.
Shifting
Next the video data can be shifted over a programmable amount downwards. 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.
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