M52758SP 데이터 시트보기 (PDF) - Mitsumi
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M52758SP Datasheet PDF : 10 Pages
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MITSUBISHI ICs (Monitor)
M52758SP/FP
WIDE BAND ANALOG SWITCH
INPUT SIGNAL
SG No.
Input Signal
Sine wave ( f = 60 kHz, 0.7Vp-p, amplitude variable )
SG1
0.7Vp-p(amplitude variable)
SG2 Sine wave ( f = 1 MHz, amplitude 0.7Vp-p )
SG3 Sine wave ( f = 10 MHz, amplitude 0.7Vp-p )
SG4 Sine wave ( f = 100 MHz, amplitude 0.7Vp-p )
SG5 Sine wave ( f = 250 MHz, amplitude 0.7Vp-p )
Pulse with amplitude 0.7Vp-p ( f = 60 kHz, duty 80% )
SG6
0.7Vp-p
Square wave ( Amplitude 5.0 Vo-p TTL, f = 60 KHz, duty 50% )
5V
SG7
0V
Note how to use this IC (Pin No is FP)
1. R, G, B input signal is 0.7Vp-p of standard video signal.
2. H, V input is 2.0V(minimum) TTL type.
3. Input signal with sufficient low impedance to input terminal.
4. The terminal of H, V output pin are shown as Fig.1. It is possible to
reduce rise time by insert the resister between Vcc line and H, V output
Pin, but set the value of resister in order that the current is under 7.5 mA.
Setting the value of R is more than 2K as shown in Fig.1 .
5V
5V
1k
R
I<7.5mA
Fig.1
5. The terminal of R,G,B output pin (Pin 27, 30, 35). It is possible to add a
pull-up resister according as drive ability. but set the value of resister in
order that the current is under 10mA. Setting the value of R is more than
500 as shown in Fig.2 .
5V
I<10mA
50
430
R
Fig.2
6. Switch (Pin 19) can be changed when this terminal is GND or OPEN
When GND : Signal output from input 1
When OPEN : Signal output from input 2
When the switch is being used as Fig.5
0 to 0.5V : Signal output from input 1
2 to 5V : Signal output from input 2
It is not allowable to set voltage higher than Vcc.
19
Fig.3
Notice of making printed circuit board.
Please notice following as shown below. It will maybe cause something
oscillation because of the P.C.B. layout of the wide band analog switch.
The distance between resister and output pin is as short as possible when
insert a output pull-down resister.
The capacitance of output terminal as small as possible.
Set the capacitance between Vcc and GND near the pins if possible.
Using stable power-source(if possible the separated power-source will be
better).
It will reduce the oscillation when add a resister that is tens of ohms
between output pin and next stage.
Assign an area as large as possible for grounding.
MITSUBISHI
ELECTRIC
7
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