ml87v21071 Oki Semiconductor, ml87v21071 Datasheet - Page 50

• Manufacturer Part Number: ml87v21071
• Description: Video Signal Noise Reduction Ic With A Built-in Frame Memory
• Manufacturer: Oki Semiconductor

OKI Semiconductor
NRAUTO
0
1
1
1
1
4 frames continuous
Noise follow noise reduction
low noise level
Motion compensation
(with upper limit)
maximum
YBDTO
CBDTO
Valid data period noise
X
0
0
1
1
level detection
Noise level
judgment
4 frames continuous
Figure F2-1-8 (2) Auto Mode Judgment Flow (AMM = 1)
low noise level
CDTO1
YDTO1
(with upper limit)
Noise follow-up
noise reduction
X
X
X
0
1
medium/high noise level
4 frames continuous
Table F2-1-8 (2) Auto Mode 2 (AMM = 1)
noise level detection
Blanking period
YDTO2
CDTO2
judgment
X
X
X
0
1
Noise
4 frames continuous
medium noise level
noise reduction
Fixed value
(Noise high follow-up status)
(Noise low follow-up status)
(Noise low follow-up status)
medium/high noise level
Register fixed value mode
4 frames continuous
Noise reduction mode
(Fixed register status)
motion compensation
4 frames continuous
With upper limit
With upper limit
With lower limit
Blanking period
low noise level
Auto mode
Auto mode
Auto mode
Auto mode
comparison
Noise level
maximum
Valid data period
continuous high
(with lower limit)
noise reduction
noise follow-up
noise level
4 frames
Valid data period noise
level detection
comparison
Noise level
continuous low/
medium noise
AYNS [1:0], YCNA [1:0], AYLM
[1:0], YCLM [1:0], and AYMS [1:0]
are valid. YNRM, CNRM, YABN
and CABN settings are ignored;
operation is equivalent to YNRM =
1, CNRM = 1, YABN = 0, CABN =
0, and YMDM = 1.
AYNS[1:0], YCNA[1:0],
AYLM[1:0], YCLM[1:0], and
AYMS[1:0] are valid. Operation is
equivalent to YMDM = 1.
AYMS[1:0] and AYOFF[3:1] are
valid same as register fixed value
mode other than YMS[4:0] and
YMOFF[3:1]. Operation is
equivalent to YMDM = 1.
AYABN, ACABN, AYNS[1:0],
YCNA[1:0], AYLM[1:0],
YCLM[1:0], and AYMOFF[3:1] are
valid.
4 frames
noise reduction
level
Fixed value
4 frames continuous
Valid data period
low noise level
comparison
Noise level
Remarks
PEDL87V21071-01
Valid data period
(with lower limit)
noise reduction
noise follow-up
ML87V21071
continuous high
noise level
4 frames
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