SAE 800
SAE 800
SAE 800 G
Pin Configuration
(top view)
Pin Definitions and Functions
Pin
1
Symbol
GND
Q
Function
Ground
2
Output
3
VS
Supply Voltage
Loudness Control
Oscillator Resistor
Oscillator Capacitor
Trigger 2 (dual tone)
Trigger 1 (single tone)
4
L
5
ROSC
COSC
E2
6
7
8
E1
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
SIEMENS [ Siemens Semiconductor Group ]
