ADV7280
Not Recommended for New Designs
The ADV7280 / ADV7280-M are versatile one-chip, multiformat video decoders. The ADV7280 / ADV7280-M automatically detect standard analog baseband video...
Datasheet
ADV7280 on Analog.com
Not much information is given about how the de-interlacing is done.
The part can perform de-interlacing on its own, but does it use a simple line doubling technique where by half of the data is missing?
If so, this de-interlacing technique does not allow the displaying of a 1 pixel x 1 pixel array.
The datasheet is very light on what you can expect from the de-interlacing.
Can anyone comment?
Hi gdownes,
There is a bit more information on the deinterlacer in the ADV7280 available in the ADV728x hardware manual. The hardware manual is available here. https://ez.analog.com/docs/DOC-10612
The hardware manual also shows the output resolutions in progressive output modes. I will be adding further information on the deinterlcarer (I2P) in the hardware manual in the near future.
The deinterlacer in the ADV7280, ADV7280-M, ADV7282, ADV7282-M all work on a line doubling rather than on a frame buffering technique. This gives the advantage of reduced delay on the output. Also large external memory is not needed.
The line doubling technique uses a propriety analog devices algorithm. It interpolates between two lines (e.g. lines 1 and 3 on an odd frame) to generate the an additional line (e.g. line 2). A smoothing filter is also applied to reduce the effect of low angle noise (i.e. jaggies).
I hope this was of some help to you.
regards,
Robert Hinchy
Applications Engineer,
Analog Devices Inc,
Hi gdownes,
There is a bit more information on the deinterlacer in the ADV7280 available in the ADV728x hardware manual. The hardware manual is available here. https://ez.analog.com/docs/DOC-10612
The hardware manual also shows the output resolutions in progressive output modes. I will be adding further information on the deinterlcarer (I2P) in the hardware manual in the near future.
The deinterlacer in the ADV7280, ADV7280-M, ADV7282, ADV7282-M all work on a line doubling rather than on a frame buffering technique. This gives the advantage of reduced delay on the output. Also large external memory is not needed.
The line doubling technique uses a propriety analog devices algorithm. It interpolates between two lines (e.g. lines 1 and 3 on an odd frame) to generate the an additional line (e.g. line 2). A smoothing filter is also applied to reduce the effect of low angle noise (i.e. jaggies).
I hope this was of some help to you.
regards,
Robert Hinchy
Applications Engineer,
Analog Devices Inc,