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LV766116F Datasheet, PDF (17/43 Pages) Sanyo Semicon Device – For PAL/NTSC Color Television Sets VIF/SIF/Y/C/Deflection /CbCr IN Implemented in a Single Chip | |||
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LV766116F
Parameter
Over-shoot adjust
[RGB output block]
(Cutoff, drive block)
Brightness control
(normal)
Brightness control
(normal-H)
Brightness control
(max)
Brightness control
(min)
Bias (cutoff) control
(min)
Bias (cutoff) control
(max)
Bias (cutoff) control
resolution
Sub-bias control
resolution
Drive adjustment
maximum output
Output attenuation
Symbol
OverShoot
BRT64
BRT64H
BRT127
BRT0
Vbias0
Vbias255
Vbiassns
Input
Test point
signal
Test method
Bus conditions
46 L-100
With Over-shoot adj. = 11Measure the pre-shoot width (Tpre) and Over-shoot adj.=11
over-shoot width (Tover) at rise of 100IRE amplitude of the Y Filter.sys:00
output signal, and calculate OverShoot = Tover/Tpre
Sharpness=111111
Bus control bit conditions: Contrast=127
Contrast:1111111
48 L-0
47
Measure the 0IRE DC levels of the respective output signals of R Bright: 1000000
output (48), G output (47), and B output (46).
Assign the measured values to BRTPCR,
BRTPCG, and BRTPCB V, respectively.
Calculate BRT63=(BRTPCR+BRTPCG+BRTPCB)/3
46
46 L-0
46 L-0
46 L-0
48 L-50
47
46
Measure the 0IRE DC level of the output signal of B output (46) Bright: 1000000
and assign the measured value to BRTPCBH.
B.BIAS: 11111111
Sub Bias: 1111111
Measure the 0IRE DC level of the output signal of B output (46) Bright: 1111111
and assign the measured value to BRTPHB.
B.BIAS: 11111111
Calculate BRT127=50Ã(BRTPHBH-BRTPCB)/CNTHB.
Sub Bias: 1111111
Measure the 0IRE DC level of the output signal of B output (46) Bright: 0000000
and assign the measured value to BRTPLB.
B.BIAS: 11111111
Calculate BRT0=50 (BRTPLB-BRTPCBH)/CNTHB.
Sub Bias: 1111111
Measure the 0IRE DC levels (Vbias0ÏV)of
the respective output signals of R output
Sub.Bias: 1111111
(48), G output (47), and B output (46).
(Ï: R, G, and B)
48 L-50
47
46
48 L-50
47
46
Measure the 0IRE DC levels
(Vbias255ÏV)of the respective output
signals of R output (48), G output (47),
and B output (46). (Ï: R, G, and B)
Sub.Bias: 1111111
R/G/B.BIAS:11111111
Measure the 0IRE DC levels (BAS80ÏV) of the respective output R/G/B.BIAS:01010000
signals of R output (48), G output (47), and B output (46). (Ï: R, Sub.Bias: 1111111
G, and B)
R/G/B.BIAS:00110000
Measure the 0IRE DC levels (BAS48ÏV)of
Sub.Bias: 1111111
the respective output signals of R output
(48), G output (47), and B output (46).
Calculate VbiassnsÏ= (BAS80Ï-BAS48Ï)/32
Vsbiassns
RGBout127
RGBout0
48 L-50
47
46
Set Sub.Bias 64 and measure the 0IRE DC levels (SB64ÏV) of Sub.Bias:
the respective output signals of R output (48),G output(47), and 1000000/0101010
B output(46).and next,set Sub.Bias 42,then measure the same as Contrast: 0111111
before.
R/G/B.BIAS:11111111
Calculate VsbiassnsÏ-(SB64Ï-SB42Ï)/22
48 L-100
47
Measure the 100IRE amplitudes
(DRVHÏVp-p)of the respective output
signals of R output (48),G output(47)
and B output (46). (Ï: R, G and B)
Bright: 0000000
R/G/B DRIVE: 1111111
Contrast: 1000000
46
48 L-100
47
Measure the 100IRE amplitudes (DRVLÏVp-p) of the respective Bright: 0000000
output signals of R output (48), G output (47), and B output (46). R/G/B DRIVE: 0000000
(Ï: R, G and B)
Contrast: 1000000
Calculate RGBout0Ï=20log(DRVHÏ/DRVLÏ)
46
No.A1873-17/43
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