MITSUBISHI ICs (TV)
M52338FP
INTERFACE IC FOR ACTIVE MATRIX LIQUID CRYSTAL PANEL
PO21
Offset among channels at pedestal voltage level 2
ELECTRICAL CHARACTERISTICS TEST METHOD
ICC1,ICC2
Based on the results of pedestal voltage level 2, calculate offset
among channels.
Circuit current 1, 2
Measure quiescent current flowing into pins
1
10
.
and
S1
Center output voltage level
COmin1,COmax1
Common output 1
Measure the center voltage level based on pedestal voltage
levels 1 and 2 of each channel.
Input FRP2 and measure the output amplitude when voltage at
13
pin
is changed to GND, and 4.5V.
M=(pedestal voltage level 1 - pedestal voltage level 2) /2
COminT1,COmaxT1
Common center voltage level 1
SO1
Offset among channels at center
output voltage level
Input FRP2 and measure the center voltage level of output
13
waveform when voltage at pin is changed to GND, and 4.5V.
Based on the result of center output voltage level, measure
offset among channels.
cothH1,cothL1 Common through rate 1
Input FRP2 and measure through rates at rising point and
A1
Output amplitude A
13
falling point of the output waveform when voltage at pin
connect-ed to GND.
is
In inputting signal Y, measure non-inverted output amplitude
21
between pedestal level and white level at pins 17 , 19 ,and 0
22
MA1
Maximum input level A
when pin is 4.5V and voltage at pin 24 is 1.5V. Also, measure
22
Connect pin
to 4.5V and measure the non-inverted output
in the same way as above when pin
and the mode is changed to EXT.
7 is connected to GND
17 19
, ,
amplitude between pedestal level and white level at pins
21
and
when signal Y (1.5VP-P) is input. Also, measure in the
OA1
Offset among channels at output amplitude A
7
same way as above when pin
mode is changed to EXT.
is connected to GND and the
Based on the results of output amplitude A, calculate the
difference in output amplitude among channels.
MOA1
Offset among channels at maximum input level A
B1
Output amplitude B
Based on the results of maximum input level A, calculate the
difference in amplitude level among channels.
In inputting signal Y, measure non-inverted output amplitude
21
0
between pedestal level and white level at pins 17 , 19 , and
22
when voltage at pin is grounded and voltage at pin 24 is 1.5V.
MB1
Maximum input level B
22
Connect pin
to GND and measure the inverted output
Also, measure in the same way as above, when pin
connected to GND and the mode is changed to EXT.
7 is
17 19
, ,
amplitude between pedestal level and white level at pins
21
and
when signal Y (1.5VP-P) is input. Also, measure in the
OB1
Offset among channels at output amplitude B
7
same way as above when pin
mode is changed to EXT.
is connected to GND and the
Based on the results of output amplitude B, calculate the
difference in output amplitude among channels.
MOB1
Offset among channels at maximum input level B
L1
Linearity
Based on the results of the maximum input level B, calculate
the difference in amplitude level among channels.
Measure the difference in inverted/inverted output amplitude of
the output waveform found as the results of output amplitude A
7
M1
Maximum input level difference
and B. Also, measure in the same way as above, when pin is
Calculate difference in output amplitude between maximum
input level A and level B of each channel.
connected to GND and the mode is changed to EXT.
W11
White balance 1
P11
Pedestal voltage level 1
In inputting signal Y, measure white peak level of each channel
19
17
22
24
In inputting signal Y, measure output voltage at pins
,
,
when voltage at pin
and
are 4.5V (in the state that peak
24
21
22
and
when pin
is 4.5V and pin
is grounded. Also,
limiter work). Also, measure in the same way as above when
7
7
measure in the same way as above when pin
to GND and the mode is changed to EXT.
is connected
pin
is connected to 4.5V and the mode is changed to EXT.
WO11
Offset among channels at white balance 1
PO11
Offset among channels at pedestal voltage level 1
Based on the results of white balance 1, measure offset among
channels.
Based on the results of pedestal voltage level 1, calculate
offset among channels.
W21
White balance 2
PO21
Pedestal voltage level 2
In inputting signal Y, measure white peak level of each channel
17
19
22
is grounded and voltage at pin 24 is 4.5V (in the
In inputting signal Y, measure output voltage at pins
,
,
when pin
and 21 when voltage at pins 22 and 24 are connected to GND.
state peak limiter works). Also, measure in the same way as
Also, measure in the same way as above when pin
connected to GND and the mode is changed to EXT.
7
is
above when pin
changed to EXT.
7 is connected to GND and the mode is
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