Rainbow-electronics MAX4912 Manuel d'utilisateur télécharger pdf (Page 8)

MAX4910/MAX4911/MAX4912

Quad-SPDT, Clickless Audio Switches

with Negative Signal Handling

8 _______________________________________________________________________________________

Applications Information

Digital Control Inputs

The MAX4910/MAX4911/MAX4912 logic inputs accept

up to +5.5V, regardless of supply voltage. For example,

with a +3.3V supply, CB1, CB2, CB, and EN can be dri-

ven low to GND and high to +5.5V, allowing for mixed

logic levels in a system. Driving CB, CB1, CB2, and EN

rail-to-rail minimizes power consumption. For a +3.3V

supply voltage, the logic thresholds are +0.5V (low)

and +1.4V (high).

GND

MAX4910

CB1

CB2

CONTROL

LOGIC

CB1 = 0, CB2 = 0.

NO3

NC3

COM3

NC2

NO2

COM2

NC4

NO4

COM4

NO1

NC1

COM1

GND

MAX4912

CB1

CB2

CONTROL

LOGIC

CB1 = 0, CB2 = 0.

NO3

NC3

COM3

NC2

NO2

COM2

NC4

NO4

COM4

NO1

NC1

COM1

GND

MAX4911

NO3

NC3

COM3

NC2

NO2

COM2

NC4

NO4

COM4

NO1

NC1

COM1

CONTROL

LOGIC

EN = 0, CB = 0.

DISCHARGE PATHS HAVE A 3.8kΩ RESISTOR (NOT SHOWN).

Functional Diagrams

1 2 3 4 5 6 7 8 9 10 11 12 13

MAX4910/MAX4911/MAX4912 1

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Rainbow-electronics MAX4912 Manuel d'utilisateur Page 8

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