參數(shù)資料
型號(hào): ADV7191
廠商: Analog Devices, Inc.
英文描述: Video Encoder with Six 10-Bit DACs and Video Encoder with Six DAC Outputs
中文描述: 視頻編碼器與六10位DAC和DAC的輸出6視頻編碼器
文件頁(yè)數(shù): 25/69頁(yè)
文件大?。?/td> 628K
代理商: ADV7191
ADV7190/ADV7191
–25–
REV. 0
622
623
624
625
1
2
3
4
5
6
7
21
22
23
DISPLAY
VERTICAL BLANK
ODD FIELD
EVEN FIELD
HSYNC
BLANK
VSYNC
DISPLAY
309
310
311
312
313
314
315
316
317
318
319
334
335
336
320
DISPLAY
VERTICAL BLANK
ODD FIELD
EVEN FIELD
HSYNC
BLANK
DISPLAY
VSYNC
Figure 41. Timing Mode 2, PAL
Mode 2: Master Option
HSYNC
,
VSYNC
,
BLANK
(Timing Register 0 TR0 = X X X X X 1 0 1)
In this mode the ADV7190/ADV7191 can generate Horizontal and Vertical SYNC signals. A coincident low transition of both
HSYNC
and
VSYNC
inputs indicates the start of an Odd Field. A
VSYNC
low transition when
HSYNC
is high indicates the
start of an Even Field. The
BLANK
signal is optional. When the
BLANK
input is disabled the ADV7190/ADV7191 automatically blanks
all normally blank lines as per CCIR-624. Mode 2 is illustrated in Figure 40 (NTSC) and Figure 41 (PAL). Figure 42 illustrates
the
HSYNC
,
BLANK
and
VSYNC
for an even-to-odd field transition relative to the pixel data. Figure 43 illustrates the
HSYNC
,
BLANK
and
VSYNC
for an odd-to-even field transition relative to the pixel data.
PAL = 12 CLOCK/2
NTSC = 16 CLOCK/2
HSYNC
VSYNC
BLANK
PIXEL
DATA
PAL = 132 CLOCK/2
NTSC = 122 CLOCK/2
Cb
Y
Cr
Y
Figure 42. Timing Mode 2, Even-to-Odd Field Transition Master/Slave
PAL = 864 CLOCK/2
NTSC = 858 CLOCK/2
PAL = 132 CLOCK/2
NTSC = 122 CLOCK/2
HSYNC
VSYNC
BLANK
PIXEL
DATA
PAL = 12 CLOCK/2
NTSC = 16 CLOCK/2
Cb
Y
Cr
Y
Cb
Figure 43. Timing Mode 2, Odd-to-Even Field Transition Master/Slave
相關(guān)PDF資料
PDF描述
ADV7191KST Video Encoder with Six 10-Bit DACs and Video Encoder with Six DAC Outputs
ADV7190 Video Encoder with Six 10-Bit DACs and Video Encoder with Six DAC Outputs
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ADV7192 Video Encoder with Six 10-Bit DACs, 54 MHz Oversampling and Progressive Scan Inputs
ADV7194KST Professional Extended-10⑩ Video Encoder with 54 MHz Oversampling
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