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ADV7182 Datasheet(PDF) 71 Page - Analog Devices

Part # ADV7182
Description  10-Bit, SDTV Video Decoder with Differential Inputs
PDF  96 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADV7182 Datasheet(HTML) 71 Page - Analog Devices

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Data Sheet
ADV7182
Rev. A | Page 71 of 96
Subaddress
Register
Bit Description
Bits
(Shading Indicates Default State)
Comments
Notes
7
6
5
4
3
2
1
0
0x14
Analog clamp
control
FREE_RUN_PAT_SEL[2:0]
0
0
0
Single color set by DEF_C and
DEF_Y; see Color Controls section
0
0
1
100% color bars
0
1
0
Luma ramp
1
0
1
Boundary box
Reserved
0
Sets to default
CCLEN; current clamp enable
allows the user to switch off the
current sources in the analog
front
0
Current sources switched off
1
Current sources enabled
Reserved
0
0
0
Sets to default
0x15
Digital Clamp
Control 1
Reserved
x
x
x
x
Sets to default
DCFE; digital clamp freeze
enable
0
Digital clamp on
1
Digital clamp off
DCT[1:0]; digital clamp timing
determines the time constant of
the digital fine clamp circuitry
0
0
Slow (TC = 1 sec)
0
1
Medium (TC = 0.5 sec)
1
0
Fast (TC = 0.1 sec)
1
1
TC dependent on video
Reserved
0
Set to default
0x17
Shaping Filter
Control 1
YSFM[4:0]; selects Y shaping filter
mode in CVBS-only mode; allows
the user to select a wide range
of low-pass/notch filters; if
either auto mode is selected, the
decoder selects the optimum
Y filter depending on the CVBS
video source quality (good vs.
poor)
0
0
0
0
0
Autowide notch for poor quality
sources or wideband filter with
comb for good quality input
Decoder selects
optimum Y shaping
filter depending on
CVBS quality
0
0
0
0
1
Autonarrow notch for poor
quality sources or wideband filter
with comb for good quality input
0
0
0
1
0
SVHS 1
If one of these
modes is selected,
the decoder does
not change filter
modes; depending
on video quality, a
fixed filter response
(the one selected) is
used for good and
bad quality video
0
0
0
1
1
SVHS 2
0
0
1
0
0
SVHS 3
0
0
1
0
1
SVHS 4
0
0
1
1
0
SVHS 5
0
0
1
1
1
SVHS 6
0
1
0
0
0
SVHS 7
0
1
0
0
1
SVHS 8
0
1
0
1
0
SVHS 9
0
1
0
1
1
SVHS 10
0
1
1
0
0
SVHS 11
0
1
1
0
1
SVHS 12
0
1
1
1
0
SVHS 13
0
1
1
1
1
SVHS 14
1
0
0
0
0
SVHS 15
1
0
0
0
1
SVHS 16
1
0
0
1
0
SVHS 17
1
0
0
1
1
SVHS 18 (CCIR 601)
1
0
1
0
0
PAL NN1
1
0
1
0
1
PAL NN2
1
0
1
1
0
PAL NN3
1
0
1
1
1
PAL WN1
1
1
0
0
0
PAL WN2
1
1
0
0
1
NTSC NN1
1
1
0
1
0
NTSC NN2
1
1
0
1
1
NTSC NN3
1
1
1
0
0
NTSC WN1
1
1
1
0
1
NTSC WN2
1
1
1
1
0
NTSC WN3
1
1
1
1
1
Reserved



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