ml87v21071 Oki Semiconductor, ml87v21071 Datasheet - Page 51

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

OKI Semiconductor
(1) Auto Mode Luminance Noise Reduction Mode Settings (AYABN)
Sets whether or not to use the luminance absolute noise reduction mode in the auto mode luminance noise
follow-up status (YDTO2 = 1).
(2) Auto Mode Chrominance Noise Reduction Mode Settings (ACABN)
Sets whether or not to use the chrominance absolute noise reduction mode in the auto mode chrominance noise
follow-up status (CDTO2 = 1).
(3) Auto Mode Luminance Noise Convergence Level Settings (AYNS[1:0])
Sets whether or not to use the luminance noise convergence level automatic setting in the auto mode luminance
noise follow-up status (YDTO2 = 1).
When AMM = 0, noise reduction stops with YDTO1 = 0, so the luminance noise convergence level is ignored.
Table F2-1-8 (4) Auto Mode Chrominance Noise Reduction Mode Settings (CABN = 0)
YBDTO
Table F2-1-8 (3) Auto Mode Luminance Noise Reduction Mode Settings (YABN = 0)
0
1
1
Table F2-1-8 (5) Auto Mode Luminance Noise Convergence Level Settings
YDTO1
X
X
X
YDTO2
CDTO2
0
1
1
0
1
1
YDTO2
AYABN
ACABN
X
0
1
X
X
0
1
0
1
[1]
X
0
1
1
0
1
1
AYNS
Absolute noise reduction mode (equivalent to
Absolute noise reduction mode (equivalent to
[0]
Chrominance Noise Reduction Mode
X
X
X
0
1
0
1
Luminance noise reduction mode
Smaller of YMAXO[4:0] x 3(max:3Fh) and YNS[5:0]
Larger of YMAXO[4:0] x 3(max:3Fh) and YNS[5:0]
YABN = 1 operation)
CABN = 1 operation)
CABN dependent
CABN dependent
YABN dependent
YABN dependent
Luminance noise convergence level
YNS[5:0] + YMAXO[4:0](max:3Fh)
YNS[5:0] + YMAXO[4:0](max:3Fh)
YNS[5:0]
YNS[5:0]
YNS[5:0]
PEDL87V21071-01
ML87V21071
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