m52758 Mitsumi Electronics, Corp., m52758 Datasheet - Page 7

• Manufacturer Part Number: m52758
• Description: Wide Band Analog Switch
• Manufacturer: Mitsumi Electronics, Corp.

INPUT SIGNAL
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 .
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 .
SG No.
SG1
SG2
SG3
SG4
SG5
SG6
SG7
Sine wave ( f = 60 kHz, 0.7Vp-p, amplitude variable )
Pulse with amplitude 0.7Vp-p ( f = 60 kHz, duty 80% )
Sine wave ( f = 100 MHz, amplitude 0.7Vp-p )
Sine wave ( f = 250 MHz, amplitude 0.7Vp-p )
Sine wave ( f = 1 MHz, amplitude 0.7Vp-p )
Sine wave ( f = 10 MHz, amplitude 0.7Vp-p )
Square wave ( Amplitude 5.0 Vo-p TTL, f = 60 KHz, duty 50% )
1k
0.7Vp-p
430
50
5V
I<7.5mA
Fig.1
5V
I<10mA
Fig.2
R
5V
R
Input Signal
MITSUBISHI
ELECTRIC
6. Switch (Pin 19) can be changed when this terminal is GND or OPEN
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.
insert a output pull-down resister.
better).
between output pin and next stage.
Notice of making printed circuit board.
The distance between resister and output pin is as short as possible when
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
It will reduce the oscillation when add a resister that is tens of ohms
Assign an area as large as possible for grounding.
When the switch is being used as Fig.5
It is not allowable to set voltage higher than Vcc.
When GND : Signal output from input 1
When OPEN : Signal output from input 2
0 to 0.5V : Signal output from input 1
2 to 5V
0.7Vp-p(amplitude variable)
: Signal output from input 2
WIDE BAND ANALOG SWITCH
19
5V
0V
MITSUBISHI ICs (Monitor)
M52758SP/FP
Fig.3
7