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參數(shù)資料
| 型號(hào)： | 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(yè)數(shù)： | 15/74頁(yè) |
| 文件大小： | 630K |
| 代理商： | TW9903 |
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TW9903
TECHWELL, INC.
15
REV. 0.92 ( B )
06/02/2002
HACTIVE
TW9903 outputs two type of HACTIVE signal on HACTIVE pin. TW9903 maintains video
HACTIVE and VBI HACTIVE internally. If VBI EN(Reg0x19[7]) is set to “1, TW9903 outputs VBI
HACTIVE on VBI output line. TW9903 outputs VBI HACTIVE on the line that LVALID is high and
VACTIVE is low. If RTSEL(Reg0x19[2:0]) is set to 0x7,LVALID signal can be observed on MPOUT
pin. TW9903 outputs video HACTIVE except VBI line on HACTIVE pin. TW9903 outputs video
HACTIVE in whole line per frame or some lines selected by HA_EN(Reg0x19[4]) and
VSCTL(Reg0x03[3]). During the lines that VACTIVE is low, if HA_EN is set to “1”, TW9903 outputs
video HACTIVE, if HA_EN is set to “0, TW9903 doesn t output video HACTIVE. During those lines
that VACTIVE is high and LVALID is low, if VSCTL is set to “1”, TW9903 outputs video HACTIVE.
If VSCTL is set to “0”, TW9903 doesn’t output video HACTIVE. In VBI enable mode
(Reg0x19[7]=1), VBI HACTIVE has higher priority than video HACTIVE in VBI output line. The
video HACTIVE is asserted at the start of the active video synchronous to the rising edge of
CLKX2. . When the horizontal count of CLKX1 cycles matches the setting of HDELAY register,
video HACTIVE is asserted. It will be asserted for a period matches the setting of HACTIVE
register before it is de-asserted. HACTIVE signal changes when CLKX1 goes to high. If BYPASS
Register bit is set to “0, the number of CLKX2 clocks from the leading edge of HSYNC to the
leading edge of video HACTIVE is always fixed during active video lines. Figure 8 shows video
HACTIVE timing. Figure 9a shows VBI HACTIVE timing at the first VBI line. Figure 9b shows VBI
HACTIVE timing during VBI output line. Figure 9c shows VBI HACTIVE timing at the last VBI line.
Figure 8. VIDEO HACTIVE timing
Figure 9a. VBI HACTIVE timing at the first VBI line
C L K X 2
C L K X 1
HACTIVE
8 CLKX2 Clocks
H S Y N C
LVALID
VACTIVE(0)
HACTIVE
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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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