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ADV7195
ADAPTIVE FILTER GAIN 1
AFG37
AFG36
AFG35
AFG34
AFG33
AFG32
AFG31
AFG30
AFG1 (AFG1)7–0
(Address (SR5-SR0) = 22H)
This 8-bit-wide register is used to program the gain applied to
signals that lie above Adaptive Filter Threshold A but are smaller
AFG37 – AFG34
GAIN B
AFG33 – AFG30
GAIN A
than Adaptive Filter Threshold B.
Gain A and Gain B values vary from –8 to +7.
Settings for (AFG1)3–0 have no effect unless Adaptive Mode
Control is set to Mode B (MR56 = “1”).
Figure 40. Adaptive Filter Gain 3 Register
ADAPTIVE FILTER THRESHOLD A
AFTA AFTA7–0
(Address (SR5–SR0) = 25H)
AFG17
AFG16
AFG15
AFG14
AFG13
AFG12
AFG11
AFG10
This 8-bit-wide register is used to program the threshold value
for small edges. The recommended programmable threshold
range is from 16–235, although any value in the range of 0–255
AFG17 – AFG14
GAIN B
AFG13 – AFG10
GAIN A
can be used.
Figure 38. Adaptive Filter Gain 1 Register
AFTA7
AFTA6
AFTA5
AFTA4
AFTA3
AFTA2
AFTA1
AFTA0
AFTA7 – AFTA0
ADAPTIVE FILTER GAIN 2
AFG2 (AFG2)7–0
(Address (SR5–SR0) = 23H)
This 8-bit-wide register is used to program the gain applied to
signals that lie above Adaptive Filter Threshold B but are smaller
than Adaptive Filter Threshold C.
Gain A and Gain B values vary from –8 to +7.
Settings for (AFG2)3–0 have no effect unless Adaptive Mode
Control is set to Mode B (MR56 = “1”).
ADAPTIVE FILTER
THRESHOLD A
Figure 41. Adaptive Filter Threshold A Register
ADAPTIVE FILTER THRESHOLD B
AFTB AFTB7–0
(Address (SR5–SR0) = 26H)
This 8-bit-wide register is used to program the threshold value
for medium edges and has priority over Adaptive Threshold A.
The recommended programmable threshold range is from
AFG27
AFG26
AFG25
AFG24
AFG23
AFG22
AFG21
AFG20
16–235, although any value in the range of 0–255 can be used.
AFG27 – AFG24
AFG23 – AFG20
AFTB7
AFTB6
AFTB5
AFTB4
AFTB3
AFTB2
AFTB1
AFTB0
GAIN B
GAIN A
AFTB7 – AFTB0
ADAPTIVE FILTER
Figure 39. Adaptive Filter Gain 2 Register
ADAPTIVE FILTER GAIN 3
AFG3 (AFG3)7–0
(Address (SR5–SR0) = 24H)
This 8-bit-wide register is used to program the gain applied to
signals that lie above Adaptive Filter Threshold C.
Gain A and Gain B values vary from –8 to +7.
Settings for (AFG3)3–0 have no effect unless Adaptive Mode
Control is set to Mode B (MR56 = “1”).
The gain applied to signals that lie below Adaptive Threshold A
THRESHOLD B
Figure 42. Adaptive Filter Threshold B Register
ADAPTIVE FILTER THRESHOLD C
AFTC AFTC7–0
(Address (SR5–SR0) = 27H)
This 8-bit-wide register is used to program the threshold value
for large edges and has priority over Adaptive Threshold A and
B. The recommended programmable threshold range is from
16–235, although any value in the range of 0–255 can be used.
is programmed in the Filter Gain register.
AFTC7
AFTC6
AFTC5
AFTC4
AFTC3
AFTC2
AFTC1
AFTC0
At any one time only one of the following registers is active: AFG1,
AFG2, AFG3, FG. The gain values can be preprogrammed and
become active whenever the threshold conditions for the accord-
ing register are met. To program the Adaptive Filter Gain registers
the same register settings are used as for the Filter Gain register.
REV. A
–23 –
AFTC7 – AFTC0
ADAPTIVE FILTER
THRESHOLD C
Figure 43. Adaptive Filter Threshold C
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