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AD7183 Datasheet(PDF) 23 Page - Analog Devices

Part # AD7183
Description  Advanced Video Decoder with 10-Bit ADC and Component Input Support
PDF  40 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7183 Datasheet(HTML) 23 Page - Analog Devices

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REV. 0
ADV7183
–23–
Table VII. Video Enhancement Control Register (Subaddress 02)
Bit Description Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Register Setting
YPM[2:0]
1
000
C = 4.5 dB, S = 9.25 dB
2
001
C = 4.5 dB, S = 9.25 dB
3
010C = 4.5 dB, S = 5.75 dB
011C = 1.25 dB, S = 3.3 dB
1
0
0
No Change; C = 0, S = 0
101C = –1.25 dB, S = –3 dB
110C = –1.75 dB, S = –8 dB
111C = –3.0 dB, S = –8 dB
COR[1:0]
4
0
0
No Coring
0
1
Truncate if Y < black + 8
1
0
Truncate if Y < black + 16
1
1
Truncate if Y < black + 32
RESERVED
0
0
0
Set to Zero
NOTES
1Y Peaking Filter Mode. Allows the user to boost/attenuate luma signals around the color subcarrier frequency. Used to enhance the picture and improve the contrast.
2C = Composite (2.6 MHz)
3S = S-Video (3.75 MHz)
4Coring Selection. Controls optional coring of the Y output signal depending on its level.
Table VIII. Output Control Register (Subaddress 03)
Bit Description
Bit 7Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1Bit 0Register Setting
OM_SEL[1:0]
1
0
0
LLC-Compatible
0
1
SCAPI Mode
1
0
CAPI Mode
1
1
Not Valid Setting
OF_SEL[3:0]
2
0000
0001
0010
16-bit @ LLC2 4:2:2 CCIR656
0011
8-bit @ LLC 4:2:2 CCIR656
0100
12-bit @ LLC2 4:1:1
0101
Not Used
0110
Not Used
0111
Not Used
1000
Not Used
1001
Not Used
1010
Not Used
1011
Not Used
1100
Not Used
1101
Not Used
1110
Not Used
1111
Not Used
TOD
3
0
Drivers Dependent on
OE Pin
1
Drivers Three-Stated Regardless of
OE Pin
VBI_EN
4
0
All Lines Filtered and Scaled
1
Active Video Region Only
NOTES
1Output Mode Selection. Selects the output mode as in the timing and interface type.
2Allows the user to choose from a set of output formats.
3Three-State Output Drivers. Allows the user to three-state the output drivers regardless of the state of the
OE pin.
4Allows VBI data (lines 1 to 21) to be passed through with only a minimum amount of filtering performed.



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