adv7310 Analog Devices, Inc., adv7310 Datasheet - Page 50
adv7310
Manufacturer Part Number
adv7310
Description
Multiformat 216 Mhz Video Encoder With Six Nsv 12-bit Dacs
Manufacturer
Analog Devices, Inc.
Datasheet
1.ADV7310.pdf
(84 pages)
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ADV7310/ADV7311
HD Sharpness Filter and Adaptive Filter Application
Examples
HD Sharpness Filter Application
The HD sharpness filter can be used to enhance or attenuate
the Y video output signal. The following register settings were
used to achieve the results shown in the figures below. Input
data was generated by an external signal source.
Address
00h
01h
02h
10h
11h
20h
20h
20h
20h
20h
20h
*See Figure 44.
Figure 44. HD Sharpness Filter Control with Different Gain Settings for HS Sharpness Filter Gain Value
R2
R4
1
CH1
REF A
Register Setting
FCh
10h
20h
00h
81h
00h
08h
04h
40h
80h
22h
500mV
Table XII.
500mV 4.00 s
1
M 4.00 s
9.99978ms
Reference*
a
b
c
d
e
f
ALL FIELDS
CH1
–50–
a
b
c
R1
R2
The effect of the sharpness filter can also be seen when using
the internally generated cross hatch pattern.
1
CH1
REF A
500mV
500mV 4.00 s
Address
00h
01h
02h
10h
11h
20h
1
Table XIII.
M 4.00 s
9.99978ms
Register Setting
FCh
10h
20h
00h
85h
99h
ALL FIELDS
CH1
d
e
f
REV. A
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