M61303FP
MITSUBISHI
IIC BUS controled 3channel video pre-amplifier for LCD display monitor.
Control the contrast in order that the amplitude of output signal is 2.0Vp-p.
Control the brightness in order that the Black level of output signal is 1.0V.
Measure the time needed for the input pulse to rise from 10 % to 90 % (Trin) and for
the output pulse to rise from 10 % to 90 % (Trout) with an active prove.
Pulse characteristics TAR is calculated by the equations below :
22
MITSUBISHI<LINEAR IC>
12
Tr1 = (Trin) - (Trout) (nsec)
100%
90%
0%
10%
Trin
or
Trout
Tfin
or
Tfout
Measure the time needed for the input pulse to fall from 90 % to 10 % (Tfin) and for
the output pulse to fall from 90 % to 10 % (Tfout) with an active prove.
Pulse characteristics TO is calculated by the equations below :
37)
39)
Reduce the SG4 input level gradually from 5.0Vp-p, monitoring the waveform
output.Measure the top level of input pulse when the output pedestal voltage turn
decrease with unstable.
Decrease the SG4 pulse width gradually from 0.Gus, monitoring the output. Measure the
SG4 pulse width (a point of 1.5V) when the output pedestal voltage turn decrease with
unstable.
41)
42)
43)
44)
Relative Pulse characteristics Tr1 is calculated by the equation below:
Tr1= VOUT(2) - VOUT(5) , VOUT(5) - VOUT(9) , VOUT(9) - VOUT(2)
38)
Relative Pulse characteristics Tf1 is calculated by the equation below:
Tf1 = VOUT(2) - VOUT(5) , VOUT(5) - VOUT(9) , VOUT(9) - VOUT(2)
40)
Tf1 = (Tfin) - (Tfout) (nsec)
Measuring condition and procedure are the same as described in Note39,except of
SW(2,5,9) condition.
46)
45)
Change SW(2,5,9) from (a) to (b) . Measuring condition and procedure are
the same as described in Note37.
Measuring condition and procedure are the same as described in Note40,except of
SW(2,5,9) condition..
Change SW(2,5,9) from (a) to (b) . Measuring condition and procedure are
the same as described in Note39.