M52749FP 데이터 시트보기 (PDF) - MITSUBISHI ELECTRIC

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M52749FP

BUS CONTROLLED 3CH VIDEO PRE-AMP FOR CRT DISPLAY MONITOR

MITSUBISHI ELECTRIC  

MITSUBISHI< LINEAR IC >

M52749FP

BUS CONTROLLED 3CH VIDEO PRE-AMP FOR CRT DISPLAY MONITOR

Note43) Control the main contrast (00H) in order that the amplitude of output signal is 3.0Vp-p.

Control the brightness (V34) in order that the Black level of output signal is 2.0V.

Measure the time needed for the input pulse to rise from 10% to 90% (Tr1) and for the output

pulse to rise from 10% to 90% (Tr2) with an active probe.

Pulse characteristics Tr is calculated by the equations below :

2

2

Tr= (Tr2)-(Tr1) (nsec)

Note44) Measure the time needed for the input pulseto fall from 90% to 10% (Tf1) and for the output

pulse to fall from 90% to 10% (Tf2) with an active probe.

Pulse characteristics Tf is calculated by the equations below :

2

2

Tr= (Tf2)-(Tf1) (nsec)

100%

90%

0%

Tr1

or

Tr2

10%

Tf1

or

Tf2

Note45) Turn down the SG5 input level gradually from 5.0Vp-p, monitoring the waveform output.

Measure thetop level of input pulse when the output pedestal voltage turn decrease with unstable.

Note46) Decrease the SG5 pulse width gradually from 0.5us, monitoring the output. Measure the SG5

pulse width (a point of 1.5V) when the output pedestal voltage turndecrease with unstable.

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