Corporation

SIGNAL PROCESSING EXCELLENCE

94

Figure 4. Control Input Configuration — SELECT A = 1, SELECT B = 1

LOOPBACK

GND

SUPPLY

+5V +12V –12V

SP306

28

1

15

14

7

8

SELECT A

SELECT B

22

SELECT A = 1

SELECT B = 1

LOOPBACK = 0

LOOPBACK

GND

SUPPLY

+5V +12V –12V

SP306

28

1

15

14

7

8

SELECT A

SELECT B

22

SELECT A = 1

SELECT B = 1

LOOPBACK = 1

RS-423 DRIVER

* Tri–state output

RS-423 RECEIVER

RS-422 RECEIVER

RS-422 DRIVER

* Tri–state output

ORDERING INFORMATION

Model

Temperature Range

Package

Two full–duplex channels RS-422/RS-423

SP306CT ................................................ 0

°C to +70°C ...............................................................28–pin SOIC

SP306MF .......................................... –55

°C to +125°C ........................................... 28–pin Ceramic Flatpack