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The SAE 800 is a single-tone, dual-tone or triple-tone gong IC designed for a very wide supply voltage range. If the oscillator is set to f0 = 13.2 kHz for example, the IC will issue in triple-tonemode the minor and major third e2 C sharp a, corresponding to 660 Hz 550 Hz 440 Hz, in dual-tone-mode the minor third e2 C sharp, and in single-tone-mode the tone e2 (derived from the fundamental frequency f0 ; f1 = f0 / 20, f2 = f0 / 24, f3 = f0 / 30).
When it is not triggered, the IC is in a standby state and only draws a few A. It comes in a compact P-DIP-8-1 or P-DSO-8-1 (SMD) package and only requires a few external components.
SAE800 Maximum Ratings
Parameter
Symbol
Limit Values
Uint
min.
max.
Supply voltage
VS
-0.3
24
V
Input voltage at E1, E2
VE1, E2
-5
24
V
Current at output Q Current at input pins E1, E2
IQ IE1, E2
-50 -2
750 3
mA mA
Current at pin ROSC Current at pin L Current at pin COSC
IR IL IC
300 300 200
200 200 200
A A A
Junction temperature
Tj
-50
150
°C
Storage temperature
Tstg
-50
150
°C
SAE800 Features
·Supply voltage range 2.8 V to 18 V ·Few external components (no electrolytic capacitor) ·1 tone, 2 tones, 3 tones programmable ·Loudness control ·Typical standby current 1 mA ·Constant current output stage (no oscillation) ·High-efficiency power stage ·Short-circuit protection ·Thermal shutdown