M52737SP Ver la hoja de datos (PDF) - MITSUBISHI ELECTRIC
Número de pieza
componentes Descripción
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M52737SP Datasheet PDF : 15 Pages
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MITSUBISHI ICs (Monitor)
M52737SP
3-CHANNEL VIDEO PREAMPLIFIER WITH OSD MIXING, RETRACE BLANKING
VB3 Brightness control characteristics (minimum)
∆VB3 Brightness control relative characteristics (minimum)
1. Measuring conditions are as given in Supplementary Table.
2. Measure the output at T.P25 (30 or 35) with a voltmeter.
The measured value is called VOR7" (VOG7" or VOB7"), and is
treated as VB2.
3. To obtain brightness control relative characteristics (∆VB3),
calculate the difference in the output between the channels,
using VOR7", VOG7" and VOB7".
∆VB3 =VOR7''-VOG7''
[V]
=VOG7''-VOB7''
=VOB7''-VOR7''
FC1 Frequency characteristics1 (f=50MHz; maximum)
∆FC1 Frequency relative characteristics1
(f=50MHz; maximum)
FC1' Frequency characteristics1 (f=150MHz; maximum)
∆FC1' Frequency relative characteristics1
(f=150MHz; maximum)
1. Measuring conditions are as given in Supplementary Table.
2. First, SGA is as input signal. Input a resister that is about 2KΩ to
offer the voltage at input pins (Pin 3, Pin 8, Pin 13) in order that
the bottom of input signal is 2.5V.
Inputs the voltage at hold pins (Pin 23, Pin 28, Pin 33) in order
that the bottom of sine wave output is 2V.
Control the MAIN CONTRAST (V17) in order that the amplitude
of sine wave output is 4.0VP-P.
By the same way, measure the output amplitude when SG1,
SG2 is as input signal.
3. Supposing that the measured value is treated as amplitude VOR8
(VOG8 or VOB8) when SG1 is input, or as VOR9 (VOG9 or VOB9)
when SG2 is input, frequency characteristics FC1 and FC1' are
calculated as follows:
FC1=20LOG VOR8 (VOG8, VOB8)
4.0
[VP-P]
[VP-P]
FC1'=20LOG VOR9 (VOG9, VOB9)
4.0
[VP-P]
[VP-P]
4. Frequency relative band widths ∆FC1 and ∆FC1' are equal to the
difference in FC1 and FC1', respectively, between the channels.
FC2 Frequency characteristics2 (f=150MHz; maximum)
∆FC2' Frequency relative characteristics2
(f=150MHz; maximum)
Measuring conditions and procedure are the same as described in
FC1, ∆FC1, FC1', ∆FC1', except that Control the MAIN CONTRAST
(V17) in order that the amplitude of sine wave output is 1.0VP-P.
C.T.1 Crosstalk1 (f=50MHz)
C.T.1' Crosstalk1 (f=150MHz)
1. Measuring conditions are as given in Supplementary Table.
2. Input SG1 (or SG2) to pin 13 (R-ch) only, and then measure the
waveform amplitude output at T.P25 (30 or 35). The measured
value is called VOR, VOG and or VOB respectively.
3. Crosstalk C.T.1 (C.T.1') is calculated by the equation below:
VOG or VOB
C.T.1 =20LOG
(C.T.1')
VOR
[VP-P]
[dB]
[VP-P]
C.T.2 Crosstalk2 (f=50MHz)
C.T.2' Crosstalk2 (f=150MHz)
1. Change the input pin from pin 8 (G-ch), and measure the output
in the same way as in C.T.1, C.T.1'.
2. Crosstalk C.T. 2 (C.T.2') is calculated by the equation below:
VOR or VOB
C.T.2 =20LOG
(C.T.2')
VOG
[VP-P]
[dB]
[VP-P]
C.T.3 Crosstalk3 (f=50MHz)
C.T.3' Crosstalk3 (f=150MHz)
1. Change the input pin from pin 13 (R-ch) to pin 3 (B-ch), and
measure the output in the same way as in C.T.1, C.T.1'.
2. Crosstalk C.T. 3 (C.T.3') is calculated by the equation below:
VOR or VOG
C.T.3 =20LOG
(C.T.3')
VOB
[VP-P]
[dB]
[VP-P]
Tr Pulse characteristics1
Tf Pulse characteristics2
1. Measuring conditions are as given in Supplementary Table.
Control the MAIN CONTRAST(V17) in order that the amplitude
of output signal is 4.0VP-P. Control the BRIGHTNESS(V19) in
order that the Black level of output signal is 2.0V.
2. Measure the time needed for the input pulse to rise from 10% to
90% (Tr1) and to fall from 90% to 10% (Tf1)with an active prove.
3. Measure the time needed for the output pulse to rise from 10%
to 90% (Tr2) and to fall from 90% to 10% (Tf2) with an active
prove.
4. Pulse characteristics Tr and Tf are calculated by the equation
below:
Tr (nsec)= (Tr2)2-(Tr1)2
Tf (nsec)= (Tf2)2-(Tf1)2
100%
90%
Tr1 or Tr2
10%
0%
Tf1 or Tf2
6
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