ADV7180BSTZ Analog Devices Inc, ADV7180BSTZ Datasheet - Page 31
![IC VIDEO DECODER SDTV 64-LQFP](/photos/6/60/66065/505-64-lqfp_sml.jpg)
ADV7180BSTZ
Manufacturer Part Number
ADV7180BSTZ
Description
IC VIDEO DECODER SDTV 64-LQFP
Manufacturer
Analog Devices Inc
Type
Video Decoderr
Datasheet
1.ADV7180BSTZ.pdf
(116 pages)
Specifications of ADV7180BSTZ
Design Resources
Low Cost Differential Video Receiver Using ADA4851 Amplifier and ADV7180 Video Decoder (CN0060) Low Cost Video Multiplexer for Video Switching Using ADA4853-2 Op Amp with Disable Function (CN0076)
Applications
Digital Cameras, Mobile Phones, Portable Video
Voltage - Supply, Analog
1.71 V ~ 1.89 V
Voltage - Supply, Digital
1.65 V ~ 2 V
Mounting Type
Surface Mount
Package / Case
64-LQFP
Resolution (bits)
10bit
Input Format
Analog
Output Format
Digital
Adc Sample Rate
57.27MSPS
Power Dissipation Pd
15µW
No. Of Input Channels
6
Supply Voltage Range
1.71V To 1.89V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
EVAL-ADV7180LQEBZ - BOARD EVALUATION ADV7180EVAL-ADV7180LFEBZ - BOARD EVAL FOR ADV7180 LFCSP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ADV7180BSTZ
Manufacturer:
AMIS
Quantity:
6 240
Company:
Part Number:
ADV7180BSTZ
Manufacturer:
Analog Devices Inc
Quantity:
10 000
Part Number:
ADV7180BSTZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Company:
Part Number:
ADV7180BSTZ-REEL
Manufacturer:
Analog Devices Inc
Quantity:
10 000
An automatic mode is provided that allows the ADV7180 to
evaluate the quality of the incoming video signal and select the
filter responses in accordance with the signal quality and video
standard. YFSM, WYSFMOVR, and WYSFM allow the user to
manually override the automatic decisions in part or in full.
The luma shaping filter has three control registers.
•
•
•
In automatic mode, the system preserves the maximum possible
bandwidth for good CVBS sources (because they can be successfully
combed) as well as for luma components of YPrPb and Y/C
sources (because they need not be combed). For poor quality
signals, the system selects from a set of proprietary shaping
filter responses that complements comb filter operation to
reduce visual artifacts.
The decisions of the control logic are shown in Figure 21.
YSFM[4:0] allows the user to manually select a shaping
filter mode (applied to all video signals) or to enable an
automatic selection (depending on video quality and video
standard).
WYSFMOVR allows the user to manually override the
WYSFM decision.
WYSFM[4:0] allows the user to select a different shaping
filter mode for good quality composite (CVBS), component
(YPrPb), and SVHS (Y/C) input signals.
COMPLEMENT COMB
AUTO SELECT LUMA
SHAPING FILTER TO
BAD
SELECT WIDEBAND
FILTER AS PER
WYSFM[4:0]
QUALITY
VIDEO
Figure 21. YSFM and WYSFM Control Flowchart
1
YES
Rev. F | Page 31 of 116
WYSFMOVR
GOOD
YSFM IN AUTO MODE?
00000 OR 00001
SET YSFM
SELECT AUTOMATIC
WIDEBAND FILTER
YSFM[4:0], Y Shaping Filter Mode, Address 0x17[4:0]
The Y shaping filter mode bits allow the user to select from a
wide range of low-pass and notch filters. When switched in
automatic mode, the filter selection is based on other register
selections, such as detected video standard, as well as properties
extracted from the incoming video itself, such as quality and
time base stability. The automatic selection always selects the
widest possible bandwidth for the video input encountered.
The Y-shaping filter mode operates as follows:
•
•
WYSFMOVR, Wideband Y Shaping Filter Override,
Address 0x18[7]
Setting the WYSFMOVR bit enables the use of the WYSFM[4:0]
settings for good quality video signals. For more information on
luma shaping filters, see the Y Shaping Filter section and the
flowchart shown in Figure 21.
When WYSFMOVR is 0, the shaping filter for good quality
video signals is selected automatically.
Setting WYSFMOVR to 1 (default) enables manual override via
WYSFM[4:0].
If the YSFM settings specify a filter (that is, YSFM is set to
values other than 00000 or 00001), the chosen filter is
applied to all video, regardless of its quality.
In automatic selection mode, the notch filters are only used
for bad quality video signals. For all other video signals,
wideband filters are used.
0
FILTER REGARDLESS OF
USE YSFM SELECTED
NO
VIDEO QUALITY
ADV7180