SAE800 Datasheet | Siemens Semiconductor Group

Programmable Single-/Dual-/Triple- Tone Gong Preliminary Data SAE 800 Bipolar IC Features q q q q q q q q q Supply voltage range 2.8 V to 18 V Few external ponents (no electrolytic capacitor) 1 tone, 2 tones, 3 tones programmable Loudness control Typical standby current 1 µA Constant current output stage (no oscillation) High-efficiency power stage Short-circuit protection Thermal shutdown P-DIP-8-4 P-DSO-8-1 Type w SAE 800 w SAE 800 G w New type Ordering Code Q67000-A8339 Q67000-A8340 Package P-DIP-8-4 P-DSO-8-1 (SMD) Functional Description 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 k Hz 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 µA. It es in a pact P-DIP-8-1 or P-DSO-8-1 (SMD) package and only requires a few external ponents. Semiconductor Group SAE 800 SAE 800 SAE 800 G Pin Configuration (top view) Pin Definitions and Functions Pin 1 2 3 4 5 6 7 8 Symbol GND Q Function Ground Output Supply Voltage Loudness Control Oscillator Resistor Oscillator Capacitor Trigger 2 (dual tone) Trigger 1 (single tone) ROSC COSC E2 E1 Functional Description (cont’d) An RC bination 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 bined with an integrated thermal shutdown (with hysteresis) makes the IC overload-protected and shortcircuit-protected. There are two trigger pins (E1, E2) for setting...