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ADV7189B View Datasheet(PDF) - Analog Devices

Part Name
Description
MFG CO.
'ADV7189B' PDF : 104 Pages View PDF
ADV7189B
Subaddress
0x15
Register
Digital
Clamp
Control 1
0x17
Shaping
Filter
Control
Bit Description
Reserved
DCT[1:0]. Digital clamp timing
determines the time constant of
the digital fine clamp circuitry.
Reserved
YSFM[4:0]. Selects Y-Shaping Filter
mode when in CVBS only mode.
Allows the user to select a wide
range of low-pass and notch filters.
If either auto mode is selected, the
decoder selects the optimum Y
filter depending on the CVBS video
source quality (good vs. bad).
CSFM[2:0].
C-Shaping Filter mode allows the
selection from a range of low-pass
chrominance filters, SH1to SH5, and
wideband mode.
76
0
0
1
1
0
00
00
01
01
10
10
11
11
Bits
5 43
0x
0
1
0
1
00
00
00
00
00
00
00
00
01
01
01
01
01
01
01
01
10
10
10
10
10
10
10
10
11
11
11
11
11
11
11
11
0
1
0
1
0
1
0
1
2 1 0 Comments
x x x Set to default
Slow (TC = 1 sec)
Medium (TC = 0.5 sec)
Fast (TC = 0.1 sec)
TC dependent on video
Set to default
0 0 0 Auto wide notch for poor
quality sources or wide-
band filter with Comb for
good quality input
0 0 1 Auto narrow notch for
poor quality sources or
wideband filter with comb
for good quality input
0 1 0 SVHS 1
0 1 1 SVHS 2
1 0 0 SVHS 3
1 0 1 SVHS 4
1 1 0 SVHS 5
1 1 1 SVHS 6
0 0 0 SVHS 7
0 0 1 SVHS 8
0 1 0 SVHS 9
0 1 1 SVHS 10
1 0 0 SVHS 11
1 0 1 SVHS 12
1 1 0 SVHS 13
1 1 1 SVHS 14
0 0 0 SVHS 15
0 0 1 SVHS 16
0 1 0 SVHS 17
0 1 1 SVHS 18 (CCIR601)
1 0 0 PAL NN1
1 0 1 PAL NN2
1 1 0 PAL NN3
1 1 1 PAL WN 1
0 0 0 PAL WN 2
0 0 1 NTSC NN1
0 1 0 NTSC NN2
0 1 1 NTSC NN3
1 0 0 NTSC WN1
1 0 1 NTSC WN2
1 1 0 NTSC WN3
1 1 1 Reserved
Auto selection 15 MHz
Auto selection 2.17 MHz
SH1
SH2
SH3
SH4
SH5
Wideband mode
Notes
Decoder selects
optimum Y-shaping
filter depending on
CVBS quality.
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.
Automatically selects
a C filter for the
specified bandwidth.
Rev. B | Page 76 of 104
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