參數(shù)資料
型號(hào)： ADV7195
廠商： Analog Devices, Inc.
英文描述： Multiformat Progressive Scan/HDTV Encoder with Three 11-Bit DACs and 10-Bit Data Input
中文描述： 多格式逐行掃描/高清晰度電視編碼器三種11位DAC和10位數(shù)據(jù)輸入
文件頁(yè)數(shù)： 16/36頁(yè)
文件大?。?/td> 499K
代理商： ADV7195
REV. 0
ADV7195
–16–
MODE REGISTER 1
MR1 (MR17–MR10)
(Address (SR4–SR0) = 01H)
Figure 20 shows the various operations under the control of
Mode Register 1.
MR1 BIT DESCRIPTION
Pixel Data Enable (MR10)
When this bit is set to “0,” the pixel data input to the ADV7195
is blanked such that a black screen is output from the DACs.
When this bit is set to “1,” pixel data is accepted at the input
pins and the ADV7195 outputs the standard set in “Output
Standard Selection” (MR01–00). This bit also must be set to
“1” to enable output of the test pattern signals.
Input Format (MR11)
It is possible to input data in 4:2:2 format or at 4:4:4 format at
27 MHz.
Test Pattern Enable (MR12)
Enables or disables the internal test pattern generator.
Test Pattern Hatch/Frame (MR13)
If this bit is set to “0,” a cross-hatch test pattern is output from
the ADV7195 (for example, in SMPTE293M 11 horizontal and
11 vertical white lines, four pixels wide are displayed against a
black background). The cross-hatch test pattern can be used to
test monitor convergence. If this bit is set to “1,” a uniform
colored frame/field test pattern is output from the ADV7195.
The color of the lines or the frame/field is by default white but
can be programmed to be any color using the Color Y, Color
Cr, Color Cb registers.
VBI Open (MR14)
This bit enables or disables the facility of VBI data insertion
during the Vertical Blanking Interval.
For this purpose Lines 13 to 42 of each frame can be used for
VBI when SMPTE293M standard is used, or Lines 6 to 43
when ITU-R.BT1358 standard is used.
Undershoot Limiter (MR15–MR16)
This control limits the Y signal to a programmable level
in the active video region.
Available limit levels are –1.5 IRE, –6 IRE, –11 IRE.
Note that this facility is only available when Interpolation is
enabled (MR36 = “1”).
Sharpness Filter (MR17)
This control bit enables or disables the Sharpness Filter mode.
This bit must be set to “1” for any values programmed into the
Filter Gain Register to take effect. It must also be set to “1” when
Adaptive Filter mode is used.
Refer to Sharpness Filter control and Adaptive Filter
control section.
–
6 IRE
0 IRE
–
40 IRE
100 IRE
Figure 19. Undershoot Limiter, Programmed to –6 IRE
MR17
MR16
MR15
MR14
MR13
MR12
MR11
MR10
UNDERSHOOT
LIMITER
MR16 MR15
0
0
1
1
0
1
0
1
DISABLE
–
11 IRE
–
6 IRE
–
1.5 IRE
TEST PATTERN
HATCH/FRAME
MR13
0
1
HATCH
FIELD/FRAME
SHARPNESS
FILTER
MR17
0
1
DISABLE
ENABLE
VBI OPEN
MR14
0
1
DISABLE
ENABLE
TEST PATTERN
ENABLE
MR12
0
1
DISABLE
ENABLE
PIXEL DATA
ENABLE
MR10
0
1
DISABLE
ENABLE
INPUT FORMAT
0
1
4:4:4 Y Cr Cb
4:2:2 Y Cr Cb
MR11
Figure 20. Mode Register 1
相關(guān)PDF資料
PDF描述
ADV7195KST Multiformat Progressive Scan/HDTV Encoder with Three 11-Bit DACs and 10-Bit Data Input
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADV7195KS 制造商:Analog Devices 功能描述:Video Encoder 3DAC 11-Bit 52-Pin MQFP 制造商:Rochester Electronics LLC 功能描述:MULTI-FORMAT VID+PROGSCAN/HDTV ENCODERIC - Bulk
ADV7195KST 制造商:AD 制造商全稱:Analog Devices 功能描述:Multiformat Progressive Scan/HDTV Encoder with Three 11-Bit DACs and 10-Bit Data Input
ADV7195KSZ 制造商:Analog Devices 功能描述:Video Encoder 3DAC 11-Bit 52-Pin MQFP
ADV7196 制造商:AD 制造商全稱:Analog Devices 功能描述:Multiformat Progressive Scan/HDTV Encoder with Three 11-Bit DACs, 10-Bit Data Input, and Macrovision
ADV7196A 制造商:AD 制造商全稱:Analog Devices 功能描述:Multiformat Progressive Scan/HDTV Encoder with Three 11-Bit DACs, 10-Bit Data Input, and Macrovision
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