參數(shù)資料
型號： TW9903
廠商： Electronic Theatre Controls, Inc.
英文描述： TW9903 ? Multi-standard Video Decoder With High Quality Down Scaler
中文描述： TW9903？多標(biāo)準(zhǔn)視頻解碼器，高品質(zhì)下倍線器
文件頁數(shù)： 16/74頁
文件大?。?/td> 630K
代理商： TW9903
TW9903
TECHWELL, INC.
16
REV. 0.92 ( B )
06/02/2002
Figure 9b. VBI HACTIVE timing during VBI lines
Figure 9c. VBI HACTIVE timing at the last VBI line
VACTIVE
VACTIVE is used to indicate the start of active video line. When the line count in each field
matches the VDELAY register setting, VACTIVE is asserted. It will remain asserted for the number
of scan lines that match the setting of VACTIVE register before it is de-asserted. VACTIVE
changes at the leading edge of HSYNC as illustrated in Figure 9c. Figure 10 also shows VACTIVE
timing.
LVALID
LVALID is used to indicate the valid line of video line. If VBI EN(Reg0x19[7]) is set to “1, LVALID
goes high from VBI start line(line 10 in 525 line video system and line 6 in 625 line video system) to
the start line of active video line. If VBI EN(Reg0x19[7]) is set to “0”, LVALID keeps low during the
same lines. When VACTIVE is asserted and active video line is a valid line as determined by
Vertical down scaling, LVALID stays high for the line. If active video line is not a valid line as
determined by Vertical down scaling, LVALID stays low for the line. LVALID changes at the leading
edge of HSYNC as shown in Figure 9a and 9c. Figure 10 also shows LVALID timing of typical
vertical down scaling output mode.
HACTIVE
8 CLKX2 Clocks
H S Y N C
LVALID(1)
VACTIVE(0)
HACTIVE
H S Y N C
LVALID
VACTIVE
X
X changes by Vertical Down Scaling Setting.
VBI LINE
ACTIVE VIDEO LINE
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TW9903-FB 功能描述:IC DECODER VIDEO NTSC/PAL/SECAM RoHS:是 類別:集成電路 (IC) >> 接口 - 編碼器，解碼器，轉(zhuǎn)換器 系列:- 產(chǎn)品變化通告:Development Systems Discontinuation 26/Apr/2011 標(biāo)準(zhǔn)包裝:1 系列:- 類型:編碼器 應(yīng)用:DVB-S.2 系統(tǒng) 電壓 - 電源，模擬:- 電壓 - 電源，數(shù)字:- 安裝類型:- 封裝/外殼:模塊 供應(yīng)商設(shè)備封裝:模塊 包裝:散裝 其它名稱:Q4645799
TW9903-MB 功能描述:IC DECODER VIDEO NTSC/PAL/SECAM RoHS:是 類別:集成電路 (IC) >> 接口 - 編碼器，解碼器，轉(zhuǎn)換器 系列:- 產(chǎn)品變化通告:Development Systems Discontinuation 26/Apr/2011 標(biāo)準(zhǔn)包裝:1 系列:- 類型:編碼器 應(yīng)用:DVB-S.2 系統(tǒng) 電壓 - 電源，模擬:- 電壓 - 電源，數(shù)字:- 安裝類型:- 封裝/外殼:模塊 供應(yīng)商設(shè)備封裝:模塊 包裝:散裝 其它名稱:Q4645799
TW9903-MBS 功能描述:IC NTSC/PAL/SECAM DECODR 100PQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 編碼器，解碼器，轉(zhuǎn)換器 系列:- 產(chǎn)品變化通告:Development Systems Discontinuation 26/Apr/2011 標(biāo)準(zhǔn)包裝:1 系列:- 類型:編碼器 應(yīng)用:DVB-S.2 系統(tǒng) 電壓 - 電源，模擬:- 電壓 - 電源，數(shù)字:- 安裝類型:- 封裝/外殼:模塊 供應(yīng)商設(shè)備封裝:模塊 包裝:散裝 其它名稱:Q4645799
TW9905-FD 功能描述:IC DECODER VIDEO NTSC/PAL/SECAM RoHS:是 類別:集成電路 (IC) >> 接口 - 編碼器，解碼器，轉(zhuǎn)換器 系列:- 產(chǎn)品變化通告:Development Systems Discontinuation 26/Apr/2011 標(biāo)準(zhǔn)包裝:1 系列:- 類型:編碼器 應(yīng)用:DVB-S.2 系統(tǒng) 電壓 - 電源，模擬:- 電壓 - 電源，數(shù)字:- 安裝類型:- 封裝/外殼:模塊 供應(yīng)商設(shè)備封裝:模塊 包裝:散裝 其它名稱:Q4645799
TW9905-MD 功能描述:IC DECODER VIDEO NTSC/PAL/SECAM RoHS:是 類別:集成電路 (IC) >> 接口 - 編碼器，解碼器，轉(zhuǎn)換器 系列:- 產(chǎn)品變化通告:Development Systems Discontinuation 26/Apr/2011 標(biāo)準(zhǔn)包裝:1 系列:- 類型:編碼器 應(yīng)用:DVB-S.2 系統(tǒng) 電壓 - 電源，模擬:- 電壓 - 電源，數(shù)字:- 安裝類型:- 封裝/外殼:模塊 供應(yīng)商設(shè)備封裝:模塊 包裝:散裝 其它名稱:Q4645799
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