參數(shù)資料
型號(hào): TMS320AV410
廠商: Texas Instruments, Inc.
英文描述: Digital NTSC/PAL Encoder(數(shù)字NTSC/PAL編碼器)
中文描述: 數(shù)字的NTSC / PAL編碼器(數(shù)字的NTSC / PAL編碼器)
文件頁數(shù): 20/33頁
文件大?。?/td> 634K
代理商: TMS320AV410
TMS320AV410, TMS320AV411
DIGITAL NTSC/PAL ENCODER
SCSS020B – JULY 1996 – REVISED MAY 1997
20
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PAL
Set GROUP3 and GROUP4 data and enable attribute data insertion.
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
ATR_EN
GROUP4
GROUP3
ATR_EN:
Attribute insertion enable
Selects enable/disable insertion of attribute information
0 : No insertion of attribute information (default)
1 : Inserts attribute information
applications circuits
To use the ’AV410/411 built-in oscillator, connect a third overtone crystal (equivalent series resistance under
40
) to OSCIN and OSCOUT terminals. The recommended oscillator circuit is shown in Figure 12. The
accuracy of the subcarrier frequency depends on the accuracy of the system clock. TI recommends using a
crystal oscillator with deviation of frequency under
±
50 ppm. Other circuits are shown in Figure 13 and
Figure 14.
1 M
22 pF
27 pF
OSCIN
OSCOUT
Crystal
Figure 12. Recommended Oscillator Circuit
P
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