MC74LVXT8051

http://onsemi.com

9

Figure 12. Crosstalk Between Any Two

Switches, Test Set−Up

Figure 13. Power Dissipation Capacitance,

Test Set−Up

Figure 14a. Total Harmonic Distortion, Test Set−Up

Figure 14b. Plot, Harmonic Distortion

0

−10

−20

−30

−40

−50

− 100

1.0

2.0

3.125

FREQUENCY (kHz)

−60

−70

−80

−90

FUNDAMENTAL FREQUENCY

DEVICE

SOURCE

ON

6

8

16

*Includes all probe and jig capacitance

OFF

0.1mF

ON/OFF

6

8

16

CHANNEL SELECT

NC

COMMON O/I

OFF/ON

ANALOG I/O

A

11

ON

6

8

16

0.1mF

TO

DISTORTION

METER

*Includes all probe and jig capacitance

APPLICATIONS INFORMATION

The Channel Select and Enable control pins should be at

high and GND being recognized as a logic low. In this

example:

GND = 0V = logic low

The maximum analog voltage swing is determined by the

voltage should not go below GND. In this example, the

using the configuration of Figure 15, a maximum analog

signal of five volts peak−to−peak can be controlled. Unused

analog inputs/outputs may be left floating (i.e., not

connected). However, tying unused analog inputs and

minimize crosstalk and feedthrough noise that may be

picked up by an unused switch.

Although used here, balanced supplies are not a

requirement. The only constraints on the power supplies are

that:

are anticipated on the analog channels, external Germanium

Figure 16. These diodes should be able to absorb the

maximum anticipated current surges during clipping.