LA76814K 데이터 시트보기 (PDF) - SANYO -> Panasonic
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LA76814K
SANYO -> Panasonic
LA76814K Datasheet PDF : 35 Pages
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Continued from preceding page.
Parameter
Symbol
Sharpness
variability
characteri
stics
Normal
Sharp16
Max
Sharp31
Min
Sharp0
Horizontal/vertical
blanking output
level
RGBBLK
LA76814
Test point
21
21
Input signal
L-CW
L-CW
L-CW
L-100
Test method
With the input signal’s continuous wave = 2.2MHz,
measure the output signal’s continuous wave
amplitude. ···· F00S16 [Vp-p]
Calculate Sharp16 = 20Log (F00S16/PEAKDC).
Bus conditions
FILTER SYS: 000
Sharpness: 10000
With the input signal’s continuous wave = 2.2MHz,
measure the output signal’s continuous wave
amplitude. ···· F00S31 [Vp-p]
Calculate Sharp31 = 20Log (F00S31/PEAKDC).
Sharpness: 11111
With the input signal’s continuous wave=2.2MHz,
measure the output signal’s continuous wave
amplitude. ···· F00S0 [Vp-p]
Calculate Sharp0 = 20Log (F00S0/PEAKDC).
Sharpness: 00000
Measure the DC level (RGBBLK V) for the output
signal’s blanking period.
OSD Block Test Conditions
When measuring the OSD block, set the bus bit to 63(0111111) for Contrast, 63(0111111) for Brightness.
Parameter
Symbol
Test point
Input signal
Test method
Bus conditions
OSD
Fast SW threshold
Red RGB output
level
FSTH
ROSDC
L-0
21
O-2
L-50
19
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.
Measure the output signal’s 50IRE amplitude.
···· CNTCR [Vp-p]
Measure the OSD output amplitude.
···· OSDHR [Vp-p]
Pin 14A: O-2
applied
Pin 17: 3.5V
Pin 14A: O-2
applied
Green RGB output
level
GOSDC
L-50
21
L-0
O-2
Blue RGB output
level
BOSDC
Analog OSD R output
level
L-50
21
L-0
O-2
L-0
19
O-1
Gain match
Linearity
Analog OSD G output
level
RRGB
LRRGB
L-0
20
O-1
Gain match
linearity
GRGB
LGRGB
ROSDH = 50×(ROSDH /CNTCR)
Measure the output signal’s 50IRE amplitude.
···· CNTCG [Vp-p]
Measure the OSD output amplitude.
···· OSDHG [Vp-p]
Pin 17: 3.5V
Pin 15A: O-2
applied
GOSDC = 50×(OSDHG/CNTCG)
Measure the output signal’s 50IRE amplitude.
···· CNTCB [Vp-p]
Measure the OSD output amplitude.
···· OSDHB [Vp-p]
BOSDC = 50 × (OSDHB/CNTCB)
Measure the amplitudes at point A (0.35V portion
of the input signal 0-1) and point B (0.7V portion of
the input signal 0-1) of the output signal. Assign
the measured values to RGBLR Vp-p and RGBHR
Vp-p, respectively.
RRGB = RGBLR/CNTCR.
LRRGB = 100×(RGBLR/RGBHR).
Measure the amplitudes at point A (0.35V portion
of the input signal 0-1) and point B (0.7V portion of
the input signal 0-1) of the output signal. Assign
the measured values to RGBLG Vp-p and RGBHG
Vp-p, respectively.
GRGB = RGBLG/CNTCG.
LGRGB = 100×(RGBLG/RGBHG).
Pin 17: 3.5V
Pin 16A: O-2
applied
Pin 17 : 3.5V
Pin 14A : O-1
applied
Pin 17: 3.5V
Pin 15A: O-1
applied
Continued on next page.
No.A0253-18/35
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