m52780-xxxsp Mitsumi Electronics, Corp., m52780-xxxsp Datasheet - Page 13

• Manufacturer Part Number: m52780-xxxsp
• Description: Controlled Video Pre-amp With Controller High Resolution Color Display Monitor
• Manufacturer: Mitsumi Electronics, Corp.

MONITOR
I2C BUS CONTROLLED 3CH VIDEO PRE-AMP WITH OSD CONTROLLER FOR HIGH RESOLUTION COLOR DISPLAY
TENTATIVE
Note 1) Measuring conditions are as listed in supplementary Table.Mesured with a current meter at test
Note 2) Measureing conditions are as listed in supplemtary Tabke.Measured with a current meter at
Note 3) Decrease V30 gradually ,and measure the voltage when the waveform output is distorted.
Note 4) Increase the input signal(SG2) amplitude gradually,starting from 700mVp-p.Measure the amplitude
Note 5) Input SG1,and read the amplitude output at OUT(29,32,35).The amplitude is called
Note 6) Relative maximum gain GV is calculated by the equation bellow:
Note 7) Measureing the amplitude output at OUT(29,32,35).The measuredvalue is called VOUT(29,32,35).
Note 8) Relative characteristics VC1 is calculated by the equation bellow:
Note 9) Measuring condition and procedure are the same as described in Note7.
Note 10) Measuring condition and procedure are the same as described in Note8.
Note 11) Measuring condition and procedure are the same as described in Note7.
Note 12) Measuring condition and procedure are the same as described in Note8.
VOH
VOL
(V)
5.0
0.0
VOUT(29,32,35).Maximum gain GV is calculated by the equation below:
point IA.
test point IB.
The voltage is called VOL.
Next,increase V30 gradually,and measure the voltage when the top of waveform output is
distorted.The voltage is called VOH.
Voltage Vomax is calculated by the equation below:
of the input signal when the output signal starts becoming distorted.
Main contrast control characterics VC1 is calculated by the equation bellow:
Vomax = VOH-VOL
GV=20Log(VOUT/0.7)
VC1=20Log(VOUT/0.7) (dB)
GV=VOUT(29)/VOUT(32),
VC1=VOUT(29)/VOUT(32),
VOUT(32)/VOUT(35),
VOUT(35)/VOUT(29)
VOUT(32)/VOUT(35),
VOUT(35)/VOUT(29)
MITSUBISHI
(dB)
Waveform output
MITSUBISHI<LINEAR IC>
M52780-XXXSP
13
38
1999. 7.27