參數(shù)資料
型號： LA76850
廠商： Sanyo Electric Co.,Ltd.
英文描述： Monolithic Linear IC Black & White Television IC
中文描述： 單片線性集成電路黑色
文件頁數(shù)： 14/31頁
文件大?。?/td> 295K
代理商： LA76850
LA76850
NoA0017-14/31
Video Block Test Conditions
Input signal
Symbol
Test point
Input signal
Test method
Bus conditions
Video signal input
1DC voltage
VIN1DC
L-100
Input signals to pin 28 and measure the voltage of
the pedestal.
VIDEO SW:1
Video signal input
1 AC voltage
VIN1AC
Pin 28 recommended input level
Video overall gain
(Contrast max)
Contrast
adjustment
characteristics
(normal/max)
Contrast
adjustment
characteristics
(min/max)
Video frequency
Characteristics 1
(NTSC)
CONT127
L-50
Measure the output signal’s 50IRE amplitude
(CNTHB Vp-p) and calculate
CONT127 = 20log (CNTHB/0.357).
Measure the output signal’s 50IRE amplitude
(CNTCB Vp-p) and calculate
CONT63 = 20log (CNTCB/0.357).
CONTRAST:
1111111
CONT63
L-50
CONTRAST:
0111111
CONT0
L-50
Measure the output signal’s 50IRE amplitude
(CNTLB Vp-p) and calculate
CONT0 = 20log (CNTLB/0.357).
CONTRAST:
0000000
BW1
L-CW
With the input signal’s continuous
Wave = 100kHz, measure the output signal’s
continuous wave amplitude (PEAKDC Vp-p).
With the input signal’s continuous
continuous wave amplitude (CW1.8 Vp-p).
Calculate BW1 = 20Log (CW1.8/PEAKDC).
With the input signal’s continuous
wave = 2.2MHz, measure the output signal’s
continuous wave amplitude (CW2.2 Vp-p).
Calculate BW2 = 20Log (CW2.2/PEAKDC).
With the input signal’s continuous
wave = 4.43MHz, measure the output signal’s
continuous wave amplitude (F0P Vp-p).
Calculate CtraP = 20Log (F0P/PEAKDC).
FILTER SYS: 0000
SHARPNESS:
000000
Video frequency
Characteristics 2
(PAL)
BW2
L-CW
FILTER SYS: 0010
SHARPNESS:
000000
Chroma trap amount
PAL
CtraPP
L-CW
FILTER SYS: 010
Sharpness: 000000
With the input signal’s continuous
wave = 3.58MHz, measure the output signal’s
continuous wave amplitude (F0N Vp-p).
Calculate CtraN = 20Log (F0N/PEAKDC).
Chroma trap amount
NTSC
CtraPN
L-CW
FILTER SYS: 000
Sharpness: 000000
L-0
Measure the output signal’s 0IRE DC level
(BRTPL V).
Brightness:
0000000
CONTRAST:
1111111
Brightness:
0000000
Contrast:
1111111
DCREST = 00
BLK.ST.DEF = 1
WPL = 0
Filter Sys:0010
Sharpness: 100000
DC transmission
amount
ClampG1
L-100
Measure the output signal’s 0IRE DC level
(DRVPH V) and 100IRE amplitude (DRVH Vp-p)
and calculate ClampG = 100
×
(1+(DRVPH - BRTPL)/DRVH).
With the input signal’s continuous
wave = 2.7MHz, measure the output signal’s
continuous wave amplitude (F02S32 Vp-p).
Calculate Sharp32T3 = 20Log
(F02S32/PEAKDC).
With the input signal’s continuous
wave = 3MHz, measure the output signal’s
continuous wave amplitude (F02S63 Vp-p).
Calculate Sharp63T2 = 20Log
(F02S63/PEAKDC).
With the input signal’s continuous
wave = 3MHz, measure the output signal’s
continuous wave amplitude (F02S0 Vp-p).
Calculate Sharp0T2 = 20Log (F02S0/PEAKDC).
Sharpness variable
range (PAL)
Sharp32T2
L-CW
(max)
Sharp63T2
L-CW
Filter Sys:0010
Sharpness: 111111
(min)
Sharp0T2
L-CW
Filter Sys:0010
Sharpness: 000000
Continued on next page.
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相關(guān)PDF資料
PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LA7685J 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:PAL/NTSC Single-chip Color Television Signal Processing Circuit
LA7688 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Single-Chip CTV Signal-Processing Circuit for PAL and NTSC Formats
LA76922M 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Signal-Processing IC with Integrated Microcontroller
LA76930 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:LA76930
LA76931J7FB-E 制造商:ON Semiconductor 功能描述:SIGNAL PROCESSING FOR CRT - Ammo Pack 制造商:ON Semiconductor 功能描述:FNFLD / SIGNAL PROCESSING FOR CRT
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