ADV7181BCP Analog Devices Inc, ADV7181BCP Datasheet - Page 76

• Manufacturer Part Number: ADV7181BCP
• Description: IC VIDEO DECODER NTSC 64-LFCSP
• Manufacturer: Analog Devices Inc
• Type: Video Decoderr

Specifications of ADV7181BCP

• Applications: Recorders, Set-Top Boxes
• Voltage - Supply, Analog: 3.15 V ~ 3.45 V
• Voltage - Supply, Digital: 1.65 V ~ 2 V
• Mounting Type: Surface Mount
• Package / Case: 64-LFCSP
• Adc/dac Resolution: 9b
• Screening Level: Industrial
• Package Type: LFCSP EP
• Pin Count: 64
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With: EVAL-ADV7181BEB - BOARD EVALUATION FOR ADV7181
• Lead Free Status / RoHS Status: Compliant, Contains lead / RoHS non-compliant

ADV7181B
Subaddress
0x14
0x15
0x17
Register
Analog
Clamp
Control
Digital
Clamp
Control 1
Shaping
Filter
Control
Bit Description
Reserved.
CCLEN. Current clamp enable allows
the user to switch off the current
sources in the analog front.
Reserved.
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, SH1 to SH5 and
wideband mode.
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7 6
0 0
0
0 0
0 0
0 1
0 1
1 0
1 0
1 1
1 1
0
0
1
1
5
0
0
1
0
1
0
1
0
1
0
1
0
1
4 3
0
1
0 x
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
1 0
1 0
1 0
1 0
1 0
1 0
1 0
1 0
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
Bits
0
2
0
x
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
1
1
x
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
x
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Comments
Set to default
Current sources switched
off
Current sources enabled
Set to default
Set to default
Slow (TC = 1 sec)
Medium (TC = 0.5 sec)
Fast (TC = 0.1 sec)
TC dependent on video
Set to default
Auto wide notch for poor
quality sources or wide-
band filter with comb for
good quality input
Auto narrow notch for
poor quality sources or
wideband filter with comb
for good quality input
SVHS 1
SVHS 2
SVHS 3
SVHS 4
SVHS 5
SVHS 6
SVHS 7
SVHS 8
SVHS 9
SVHS 10
SVHS 11
SVHS 12
SVHS 13
SVHS 14
SVHS 15
SVHS 16
SVHS 17
SVHS 18 (CCIR601)
PAL NN1
PAL NN2
PAL NN3
PAL WN 1
PAL WN 2
NTSC NN1
NTSC NN2
NTSC NN3
NTSC WN1
NTSC WN2
NTSC WN3
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 3 dB
cutoff.