2

Pin Descriptions

PIN

FUNCTION

System Power Supply Input (3.0V to 5.5V).

V+

Internally Generated Positive Transmitter Supply (+5.5V).

V-

Internally Generated Negative Transmitter Supply (-5.5V).

GND

Ground Connection.

C1+

External Capacitor (Voltage Doubler) is connected to this lead.

C1-

External Capacitor (Voltage Doubler) is connected to this lead.

C2+

External Capacitor (Voltage Inverter) is connected to this lead.

C2-

External Capacitor (Voltage Inverter) is connected to this lead.

TTL/CMOS Compatible Transmitter Inputs with pull-up resistors.

RS-562/RS-232 level (nominally

±5.5V) transmitter outputs.

RS-562/RS-232 compatible receiver inputs.

TTL/CMOS Level Receiver Outputs.

EN

Active Low Receiver Enable Control.

SHDN

Active Low Input which shuts down transmitters and on-board power supply, to place device in low power mode.

Typical Operating Circuit

ISL8563

17

0.1

µF

+

0.1

µF

+

0.1

µF

12

11

15

8

2

4

3

7

V+

V-

C1+

C1-

C2+

C2-

+

0.1

µF

5

6

14

5k

Ω

9

10

5k

Ω

13

+

EN

SHDN

1

GND

18

+3.3V

+

0.1

µF

16

TTL/CMOS

LOGIC LEVELS

RS-562/232

LEVELS

400k

Ω

400k

Ω

ISL8563