Semiconductor Group

2

SAE 800

Pin Configuration

(top view)

Pin Definitions and Functions

Functional Description (cont’d)

An RC combination is needed to generate the fundamental frequency (pin

R

can be adjusted with another resistor (pin L). The loudspeaker must be connected directly between

the output Q and the power supply

V

thermal shutdown (with hysteresis) makes the IC overload-protected and shortcircuit-protected.

There are two trigger pins (E1, E2) for setting single-tone, dual-tone or triple-tone mode.

Pin

Symbol

Function

1

GND

Ground

2

Q

Output

3

V

S

Supply Voltage

4

L

Loudness Control

5

R

OSC

Oscillator Resistor

6

C

OSC

Oscillator Capacitor

7

E2

Trigger 2 (dual tone)

8

E1

Trigger 1 (single tone)

SAE 800

SAE 800 G