54HC4016J 데이터 시트보기 (PDF) - ON Semiconductor
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54HC4016J Datasheet PDF : 11 Pages
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MC54/74HC4016
0
– 10
FUNDAMENTAL FREQUENCY
– 20
– 30
– 40
– 50
DEVICE
– 60
SOURCE
– 70
– 80
– 90
– 100
1.0
2.0
3.0
FREQUENCY (kHz)
Figure 15. Plot, Harmonic Distortion
APPLICATION INFORMATION
The ON/OFF Control pins should be at VCC or GND logic
levels, VCC being recognized as logic high and GND being
recognized as a logic low. Unused analog inputs/outputs
may be left floating (not connected). However, it is advisable
to tie unused analog inputs and outputs to VCC or GND
through a low value resistor. This minimizes crosstalk and
feedthrough noise that may be picked up by the unused I/O
pins.
The maximum analog voltage swings are determined by
the supply voltages VCC and GND. The positive peak analog
voltage should not exceed VCC. Similarly, the negative peak
analog voltage should not go below GND. In the example
below, the difference between VCC and GND is twelve volts.
Therefore, using the configuration in Figure 16, a maximum
analog signal of twelve volts peak–to–peak can be con-
trolled.
When voltage transients above VCC and/or below GND
are anticipated on the analog channels, external diodes (Dx)
are recommended as shown in Figure 17. These diodes
should be small signal, fast turn–on types able to absorb the
maximum anticipated current surges during clipping. An al-
ternate method would be to replace the Dx diodes with
MOsorbs (Motorola high current surge protectors).
MOsorbs are fast turn–on devices ideally suited for precise
DC protection with no inherent wear–out mechanism.
+ 12 V
0V
ANALOG I/O
VCC = 12 V
14
ANALOG O/I
ON
+ 12 V
0V
+ 12 V
SELECTED
CONTROL
INPUT
7
OTHER CONTROL
INPUTS
(VCC OR GND)
Figure 16. 12 V Application
VCC
Dx
Dx
VCC
14
Dx
ON
Dx
VCC
SELECTED
CONTROL
OTHER CONTROL
INPUT
INPUTS
7
(VCC OR GND)
Figure 17. Transient Suppressor Application
MOTOROLA
8
High–Speed CMOS Logic Data
DL129 — Rev 6
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