Siren Sound Generator COB by Electronics123.com, Inc. at Time for Plan B. Hurry! Limited time offer. Offer valid only while supplies last. The chip will tolerate a wide range of component values. A suggested circuit is given below. R1, The oscillator resistor was 47K; R2 3K3 and R3 5K6.
Product Description & Reviews
The chip will tolerate a wide range of component values. A suggested circuit is given below. R1, The oscillator resistor was 47K; R2 3K3 and R3 5K6. With a good choke coil or transformer, and a good piezo resonating chamber sound outputs of over 105dB at 1 meter are obtainable.
This is the first time these die form IC's have been generally available to the hobbyist market.
The pinouts is as follows:
Pin Position Pin Function
1 VDD Positive 2 to 6V
2 Oscillator Resistor
3 Oscillator Resistor
4 Not connected
5 Push button trigger to Ground
7 Buzzer Output
(Click here for suggested drive circuit)
Download data sheet here: http://electronics123.net/amazon/datasheet/sg11-circuit.jpg
Features & Highlights
- Siren sound generator PCB size: 18mm x 15mm. COB contains a standard siren driver as found in piezo horns and toys.
- Drive circuit will tolerate a wide range of components values. 2V to 5V operation. It has automatic power down & a standby current of < 2uA. (CPSSG11)
- This 18mm x 15mm Chip-on-Board PCB contains a standard alarm siren as used in personal alarms, drivers for piezo horn sirens, cars & toys.
- It has a wide power supply of between 2V to 5V. (However, one factory does use it with a 9V battery in a personal alarm with no apparent failures.) It has automatic power down & a standby current is less than 2 uA.
- Component or Part
Internal Hard Drives
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