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參數(shù)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(shù)： | 19/73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
26
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.
Important note:
The user should take care not to program the CSM that the resulting codes would fall outside the 10-bit code
range, as ‘wrap-around’ will occur.
Interpolating Finite Impulse Response Filter (IFIR)
For relaxing the requirements of the reconstruction filter behind the DAC in the analog domain, and in order to take
advantage of the high-speed capability of the DACs in THS8200/10, a 2X digital up-sampling and interpolation filter
module is integrated.
The figures below show the YRGB and CbCb filtering requirements for respectively HDTV (SMPTE274M/296M
standards) and SDTV (ITU-R.BT601 standard).
with
δ = 0.05dB. fs=74.25MSPS for 1080I & 720P HDTV formats
with
δ = 0.05dB.
The figures below illustrate the frequency and phase responses of the interpolating filters. The actual response
using the finite-word length coefficients present in THS8200/10 is shown. The same filter characteristic is used for
SDTV/HDTV modes and for both 4:2:2 to 4:4:4 interpolation (2 filters, one on each of Cb & Cr channels, switched
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