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參數資料
| 型號： | ADV7177 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Integrated Digital CCIR-601 to PAL/NTSC Video Encoder |
| 中文描述： | 綜合數字無線電咨詢委員會，601到PAL / NTSC制式視頻編碼器 |
| 文件頁數： | 14/38頁 |
| 文件大小： | 280K |
| 代理商： | ADV7177 |
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ADV7177/ADV7178
–14–
REV. 0
Vertical Blanking Data Insertion
It is possible to allow encoding of incoming YCbCr data on those lines of VBI that do not bear line sync or pre-/post-equalization
pulses (see Figures 14 to 25). This mode of operation is called “Partial Blanking” and is selected by setting MR31 to 1. It allows the
insertion of any VBI data (Opened VBI) into the encoded output waveform. This data is present in digitized incoming YCbCr data
stream (e.g., WSS data, CGMS, VPS, etc.). Alternatively, the entire VBI may be blanked (no VBI data inserted) on these lines by
setting MR31 to 0.
The complete VBI comprises of the following lines:
525/60 Systems, Lines 525 to 21 for Field 1 and Lines 262 to Line 284 for Field 2.
625/50 Systems, Lines 624 to Line 22 and Lines 311 to 335.
The “Opened VBI” consists of:
525/60 Systems, Lines 10 to 21 for Field 1 and second half of Line 273 to Line 284 for Field 2.
625/50 Systems, Line 7 to Line 22 and Lines 319 to 335.
Mode 0 (CCIR-656): Slave Option
(Timing Register 0 TR0 = X X X X X 0 0 0)
The ADV7177/ADV7178 is controlled by the SAV (Start Active Video) and EAV (End Active Video) time codes in the pixel data.
All timing information is transmitted using a 4-byte synchronization pattern. A synchronization pattern is sent immediately before
and after each line during active picture and retrace. Mode 0 is illustrated in Figure 14. The
HSYNC
, FIELD/
VSYNC
and
BLANK
(if not used) pins should be tied high during this mode.
YC
r
Y
F
F
0
0
0
0
X
Y
8
0
1
0
8
0
1
0
F
F
0
0
F
F
A
B
A
B
A
B
8
0
1
0
8
0
1
0
F
F
0
0
0
0
X
Y
C
b
YC
r
C
b
Y
C
b
Y
C
r
EAV CODE
SAV CODE
ANCILLARY DATA
(HANC)
4 CLOCK
4 CLOCK
268 CLOCK
1440 CLOCK
4 CLOCK
4 CLOCK
280 CLOCK
1440 CLOCK
END OF ACTIVE
VIDEO LINE
START OF ACTIVE
VIDEO LINE
ANALOG
VIDEO
INPUT PIXELS
NTSC/PAL M SYSTEM
(525 LlNES/60Hz)
PAL SYSTEM
(625 LINES/50Hz)
Y
Figure 14. Timing Mode 0 (Slave Mode)
Mode 0 (CCIR-656): Master Option
(Timing Register 0 TR0 = X X X X X 0 0 1)
The ADV7177/ADV7178 generates H, V and F signals required for the SAV (Start Active Video) and EAV (End Active Video) time
codes in the CCIR-656 standard. The H bit is output on the
HSYNC
pin, the V bit is output on the
BLANK
pin, and the F bit is
output on the FIELD/
VSYNC
pin. Mode 0 is illustrated in Figure 15 (NTSC) and Figure 16 (PAL). The H, V and F transitions
relative to the video waveform are illustrated in Figure 17.
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| ADV7178KS | Integrated Digital CCIR-601 to PAL/NTSC Video Encoder |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| ADV7177KS | 制造商:Analog Devices 功能描述:Video Encoder 3DAC 9-Bit 44-Pin MQFP 制造商:Rochester Electronics LLC 功能描述:NTSC/PAL 3 DAC VIDEO ENCODER I.C. - Bulk 制造商:Analog Devices 功能描述:IC VIDEO ENCODER |
| ADV7177KS-REEL | 制造商:Analog Devices 功能描述:Video Encoder 3DAC 9-Bit 44-Pin MQFP T/R 制造商:Rochester Electronics LLC 功能描述:NTSC/PAL 3 DAC VIDEO ENCODER I.C. - Tape and Reel |
| ADV7177KSZ | 功能描述:IC DAC VIDEO NTSC 3-CH 44MQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 編碼器，解碼器，轉換器 系列:- 產品變化通告:Development Systems Discontinuation 26/Apr/2011 標準包裝:1 系列:- 類型:編碼器 應用:DVB-S.2 系統 電壓 - 電源，模擬:- 電壓 - 電源，數字:- 安裝類型:- 封裝/外殼:模塊 供應商設備封裝:模塊 包裝:散裝 其它名稱:Q4645799 |
| ADV7177KSZ-REEL | 功能描述:IC DAC VIDEO NTSC 3-CH 44MQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 編碼器，解碼器，轉換器 系列:- 產品變化通告:Development Systems Discontinuation 26/Apr/2011 標準包裝:1 系列:- 類型:編碼器 應用:DVB-S.2 系統 電壓 - 電源，模擬:- 電壓 - 電源，數字:- 安裝類型:- 封裝/外殼:模塊 供應商設備封裝:模塊 包裝:散裝 其它名稱:Q4645799 |
| ADV7178 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Integrated Digital CCIR-601 to PAL/NTSC Video Encoder |
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