參數(shù)資料
型號(hào)： LA76810A
廠商： Sanyo Electric Co.,Ltd.
英文描述： Monolithic Linear IC For PAL/NTSC Color Television Sets VIF/SIF/Y/Deflection 1chip IC
中文描述： 單片線(xiàn)性集成電路為PAL / NTSC制式彩電資料表格/應(yīng)力強(qiáng)度因子/年/撓度1chip集成電路
文件頁(yè)數(shù)： 14/40頁(yè)
文件大?。?/td> 504K
代理商： LA76810A
www.DataSheet4U.com
LA76810A
NoA0252-14/40
Continued from preceding page.
Input signal
Symbol
Test point
Input signal
Test method
Bus bit/input signal
Measure the 0IRE DC level (BKST1 V) at point A
of the output signal in the Black Stretch Defeat
(Black Stretch OFF) mode.
Measure the 0IRE DC level (BKST2 V) at point A
of the output signal in the Black Stretch ON
mode.
Calculate BKSTmax=2
×
50
×
(BKST1-BKST2)
/CNTHB.
Blk Str DEF: 0
Maximum black
stretch gain
BKSTmax
L-BK
Measure the 60IRE DC level (BKST3 V) of the
output signal in the Black Stretch Defeat ON
mode.
Blk Str DEF: 0
Measure the 60IRE DC level (BKST4 V) of the
output signal in the Black Stretch Defeat (Black
Stretch OFF) mode.
Calculate BKSTTH
= 50
×
(BKST4-BKST3)/CNTHB.
Black stretch
threshold
black
(60IRE
black)
BKSTTH
L-60
Sharpness variability
characteristics
With the input signal’s continuous
wave = 2.2MHz, measure the output signal’s
continuous wave amplitude (F00S31 Vp-p).
FILTER SYS:0000
Sharpness: 100000
(normal)
Sharp31
L-CW
Calculate Sharp31 = 20Log (F00S31/PEAKDC).
With the input signal’s continuous
wave = 2.2MHz, measure the output signal’s
continuous wave amplitude (F00S63 Vp-p).
FILTER SYS:0000
Sharpness: 111111
(max)
Sharp63
L-CW
Calculate Sharp63=20Log (F00S63/PEAKDC).
With the input signal’s continuous
wave=2.2MHz, measure the output signal’s
continuous wave amplitude (F00S0 Vp-p).
FILTER SYS:0000
Sharpness: 000000
(min)
Sharp0
L-CW
Calculate Sharp0 = 20Log (F00S0/PEAKDC).
Horizontal/vertical
blanking output
level
RGBBLK
L-100
Measure the DC level (RGBBLK V) for the output
[OSD block]
Bus control bit conditions: Contrast = 63, Brightness = 63
Test point
Input signal
Symbol
Input signal
Test method
Bus bit/input signal
OSD
Fast SW threshold
FSTH
L-0
O-2
Apply voltage to pin 17 and measure the voltage
at pin 17 at the point where the output signal
switches to the OSD signal.
Pin 16A: O-2
applied
L-50
Measure the output signal’s 50IRE amplitude
(CNTCR Vp-p).
L-0
O-2
Measure the OSD output amplitude
(OSDHR Vp-p).
Pin 17: 3.5V
Pin 14A: O-2
applied
Red RGB output
level
ROSDC
Calculate ROSDC = 50
×
(ROSDC /CNTCR)
L-50
Measure the output signal’s 50IRE amplitude
(CNTCG Vp-p).
L-0
O-2
Measure the OSD output amplitude
(OSDHG Vp-p).
Pin 17: 3.5V
Pin 15A: O-2
applied
Green RGB output
level
GOSDC
Calculate GOSDC = 50
×
(GOSDC/CNTCG)
Continued on next page.
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