MITSUBISHI ICs (TV)
M52338FP
INTERFACE IC FOR ACTIVE MATRIX LIQUID CRYSTAL PANEL
COA1
Non-inverted contrast control offset 1
among channels (contrast=4.5V)
WO21
Offset among channels at white balance 2
Based on the results of white balance 2, measure offset among
channels.
Calculate the difference in amplitude of contrast 1 measured
when voltage at pins and are 4.5V among channels.
22
24
γ11,γ21 γ1 control
Also, measure in the same way as above when pin
connected to GND and the mode is changed to EXT.
is
7
In inputting signal Y, compare the voltage difference between
pedestal level and the first or second gradation of output signal
22
24
is 1.5V and
COB1
Inverted contrast control offset 1 among
channels (contrast=4.5V)
Y when voltage at pin
is 4.5V, voltage at pin
25
voltage at pin
is 1.0V with the difference when voltage at pin
25
Calculate the difference in amplitude of contrast a measured
when pins is grounded and voltage at pin is 4.5V among
is 4.5V. Also, measure in the same way as above when pin
is connected to GND and the mode is changed to EXT.
7
22
24
channels. Also, measure in the same way as above when pin
γ21,γ22 γ2 control
is connected to GND and the mode is changed to EXT.
7
In inputting signal Y, compare the voltage difference between
the 9th or 8th gradation and white level of output signal Y when
voltage at pin 22 is 4.5V, voltage at pin 24 is 1.5V, and voltage
at pin 26 1.0V with the difference when voltage at pin 26 is 4.5V.
SCmin1,SCmax1
Sub contrast control
In inputting signal Y (0.2VP-P), measure the output amplitude of
Rch and Bch when voltage at pin 22 is 4.5V, voltage at pin 240
is 1.0V and voltage at pin
or
is changed to GND and
30
28
Also, measure in the same way as above when pin
connected to GND and the mode is changed to EXT.
7 is
4.5V. Also, measure in the same way as above when pin 70
is connected to GND and the mode is changed to EXT.
COmin1,COopen1,COmax1
Contrast control 1
SC1
Sub contrast control variance
Based on the results of sub contrast control, calculate the
variance.
In inputting signal Y (0.2VP-P), measure the amplitude of output
signal of each channel when voltage at pin 22 is 4.5V and
voltage at pin
is changed to GND, open, and 4.5V. Also,
24
BRmin1,BRopen1,BRmax1
Brightness control
measure in the same way as above when pin
to GND and the mode is changed to EXT.
is connected
7
In inputting signal Y and FRP1, measure of the output
24
amplitude of each channel when pin. is grounded and voltage
COmaxG1
Contrast control MAX gain 1
23
at pin
is changed to GND, open and 4.5V. Also, measure in
In inputting signal Y (0.2VP-P), calculate the ratio of input signal
amplitude to output amplitude of each channel when voltage at
pins 22 and 24 are 4.5V.
7
the same way as above when pin
the mode is changed to EXT.
is connected to GND and
BR1
Brightness control variance
M=20log (output amplitude/input amplitude)
Based on the results of brightness control, calculate the
variance of each channel.
COmina,COopena,COmaxa
In inputting signal Y (0.2VP-P), measure the amplitude of output
signal of each channel when pin is grounded and voltage at
Contrast control a
BRmin1 Brightness control offset among channels
22
Calculate the difference in output amplitude of brightness
pin
is changed to GND, open, and 4.5V. Also, measure in
24
24
23
are grounded among channels.
measured when pins .and
the same way as above, when pin
the mode is changed to EXT.
is connected to GND and
7
7
Also, measure in the same way as above when pin
connected to GND and the mode is changed to EXT.
is
COmaxa
Contrast control MAX gain a
BRmax1 Brightness control offset among channels
In inputting signal Y (0.2VP-P), calculate the ratio of input signal
amplitude to output amplitude of each channel when pin 22 is
grounded and voltage at pin 24 is 4.5V.
Calculate the difference in output amplitude of brightness
24
23
measured when pin is grounded and voltage at pin is 4.5V
among channels. Also, measure in the same way as above
M=20log (output amplitude/input amplitude)
7
when pin is connected to GND and the mode is changed to
COminO1
Non-inverted/inverted contrast control
offset 1 (contrast=4.5V)
EXT.
SBmiR1, SBmax1
Sub bias control
Compare values of contrast 1 and a of each channel measured
In inputting signal Y and FRP1, measure output amplitude of
when voltage at pin
as above when pin
changed to EXT.
is 4.5V. Also, measure in the same way
is connected to GND and the mode is
24
7
20
or
24
Rch and Bch when pin
is grounded and voltage at pin
018 is changed to GND and 4.5V. Also, measure in the same
way as above when pin
is changed to EXT.
7 is connected to GND and the mode
COmaxO1
Non-inverted/inverted contrast control
offset 1 (contrast=GND)
SB1
Sub bias control variance
Compare values of contrast 1 and a of each channel measured
when pin is connected to GND. Also, measure in the same
Based on the results of sub bias control, calculate the variance.
24
way as above when pin
is changed to EXT.
is connected to GND and the mode
7
5秒后页面跳转
PCF8574资料解读：主要参数分析、引脚说明
AD637数据手册解读：主要特性、引脚及其功能解读、电气参数
ADUM1201资料手册解读：参数分析、引脚说明、应用分析
一文带你了解压敏电阻器在直流电路中的过压保护作用
微信公众号
抖音公众号
浙公网安备 33010502006866号 浙ICP备10014259号-119
营业执照ICP证
技术参数
数据手册
如果您发现信息不准确，
