UM includes oscillator and selector circuits, a compact sound module can be constructed with only a few additional components. Siren Generation Using IC UM IC UM is a siren generator IC generally used in alarms and toy applications. Depending on the selection, it can. A. A brief overview of the UM IC. UM is an excellent ROM IC that can generate Multi siren tones simulating Police siren, Ambulance siren, Fire brigade .

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There is a tone generator, which is able to generate different tones using the oscillator clock and um561 to the data given by the ROM.

The UM has 8 pins, and it can intake 3 to 5V as a power um35661 and gives output range It can easily drive magnetic speaker with a help of single NPN transistor. Your email address will not be published. We need only a few additional components as this Integrate Circuits has built in oscillator and selector circuits.

Siren Sound generator circuit can be utilized in several applications, different siren sounds are used for many field based applications, here the following circuit can produce three different siren sounds Police siren, Im3561 engine siren, Ambulance siren.


They are also started I already said that this IC can generate 4 different sirens.

As these signals are very weak to drive a speaker, we need an amplifier. It is a low uk3561 and low power IC which can work down to 2.

Here BC transistor is used as an amplifier. Contents1 Follow Manufacturer Specific Datasheet1. In order to post comments, please make sure JavaScript and Cookies are enabled, and reload the page. This website uses cookies to improve your experience.

By applying these bias to the SEL pins we can get different siren sound effect. Each data stored in the ROM corresponds to each tone and it can be selected by using the address of the data location.

UM3561 Siren Sound Generator COM22

When there is no switch is pressed then police siren will generate at output pin. A transistor is a very important electronic device which is used to amplify and switch electronic signals.

Click here for instructions on how to enable JavaScript in your browser. It will help your sound based or alarm based electronic project. By using single IC UM we can build three siren sound generator circuit.


Contents1 Components Required2 Circuit Diagram2. Microsoft Surface is a multi-touch surface computing platform that responds to natural hand gestures and real objects. These 4 sirens require 4 different sequence of tone generation, that means 4 different sequence of address counting. It has inbuilt oscillator and sound selector circuit, It requires few components to produce output. OrCad is a highly developed and complex software that provides affordable and Currently you have JavaScript disabled.

UM Sound Generator IC Pinout, Circuit & Datasheet

D Flip Flop is primarily meant to provide delay as the output of this Flip Flop is same as Select line 1,2 are connected with three push to ON switch and oscillator pin 7, 8 are connected with variable Resistor VR1 and R1 to maintain oscillation. We’ll assume you’re ok with this, but you can opt-out if you wish.

Add a Comment Cancel reply Your email address will not be published. Basic blocks of IC Uum3561 are shown in the above block diagram.

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