m52749fp Mitsumi Electronics, Corp., m52749fp Datasheet - Page 11
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m52749fp
Manufacturer Part Number
m52749fp
Description
Bus Controlled 3ch Video Pre-amp For Crt Display Monitor
Manufacturer
Mitsumi Electronics, Corp.
Datasheet
1.M52749FP.pdf
(25 pages)
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Note1)
Note2)
Note3)
Note4)
Note5)
Note6)
Note7)
Note8)
Note9)
Note10) Measuring condition and procedure are the same as described in Note8.
Note11) Measuring the amplitude output at OUT(33,38,41). The measured value is called VOUT(33,38,41).
Note12) Measuring condition and procedure are the same as described in Note8.
Measuring conditions are as listed in supplementary Table. Measured with a current meter
Measuring conditions are as listed in supplementary Table. Measured with a current meter
Decrease V34 gradually, and measure the voltage when the bottom of waveform output is
Increase the input signal(SG2) amplitude gradually, starting from 700mVp-p. Measure the
Input SG1, and read the amplitude output at OUT(33,38,41). The amplitude is called
Relative maximum gain GV is calculated by the equation below:
Measuring the amplitude output at OUT(33,38,41). The measured value is called VOUT(33,38,41).
Relative characteristics
Measuring condition and procedure are the same as described in Note7.
at test point IA.
at test point IB.
distorted. The voltage is called VOL.
Next, increase V34 gradually, and measure the voltage when the top of waveform output is
distorted. The voltage is called VOH.
Voltagr Vomax is calculated by the equation below:
amplitude of the input signal when the output signal starts becoming distorted.
VOUT(33,38,41).Maximum gain GV is calculated by the equation below:
Main contrast conrol characteristics VC1 is calculated by the equation below:
VOH
GV=VOUT(33)/VOUT(38), VOUT(38)/VOUT(41), VOUT(41)/VOUT(33)
VC1=VOUT(33)/VOUT(38) , VOUT(38)/VOUT(41) , VOUT(41)/VOUT(33)
VOL
5.0
(V)
0.0
GV=20 LOG
VC1=20 LOG
VC1 is calculated by the equation below:
MITSUBISHI
VOUT
0.7
VOUT
0.7
BUS CONTROLLED 3CH VIDEO PRE-AMP FOR CRT DISPLAY MONITOR
Vomax
(dB)
(dB)
= VOH - VOL
MITSUBISHI< LINEAR IC >
Waveform output
M52749FP
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