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SAE800

Programmable Single-/Dual-/Triple- Tone Gong

Infineon Technologies 

SAE 800

SAE 800

SAE 800 G

Pin Configuration

(top view)

Pin Definitions and Functions

Pin

Symbol

Function

1

GND

Ground

2

Q

Output

3

VS

Supply Voltage

4

L

Loudness Control

5

ROSC

Oscillator Resistor

6

COSC

Oscillator Capacitor

7

E2

Trigger 2 (dual tone)

8

E1

Trigger 1 (single tone)

Functional Description (cont’d)

An RC combination is needed to generate the fundamental frequency (pin ROSC , COSC). The volume

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

the output Q and the power supply VS . The current-sink principle combined with an integrated

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.

Semiconductor Group

2

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