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Create music (UM66T)

2016-09-17 23:34  
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This article introduces the Melody and Music tone generator (UM3491). The principle is very simple, very practical. The circuit components can help you understand better grasp this principle. For example, in this circuit, you can go to find and buy these components: UM66T.

In the circuit basically usability base ICUM66Tuse sound of music sweet-sounding origin and be usable easily. It use just integrated one circuit and a loudspeaker , piezo buzzer , the small-sized , and have power supply 3V only. The detail is other of integrated number this circuit.
The UM66T series are CMOS LSI designed for using in door bell, telephone and toy
application. It is an on-chip ROM programmed for musical performance. Produced by CMOS
technology, the device results in very low power consumption. Since the UTC UM66TXXL Melody generator IC series include oscillation circuits a compact melody module can be constructed with only a few additional components.


The music sound with UM66T

Most circuits, we find that the IC number UM66T common because the smaller ICI power consumption of culture is not very easy. Choose music that has many songs together.
Operation of the circuit when the power supply circuit are currents flowing through LED1 LED1 light and the electricity flowing into pin 2 of IC1 IC1 make music production work.

Create music with ic UM66T

The output from pin 3 to C1 through the bias of the legs B Q1 Q1, which will force the amplifier to drive speakers then.

Easy create music by UM66T

Operation of the circuit. When the circuit to the power supply. Is current flowing through R1 and LED1 LED1 light of the C1 will serve to filter noise ground. Voltage drop across LED1 is to be paid to voltage signal generator IC1 out of three legs then the amplifier Q1, Q2 connected together in adarlington transistor. In order to drive speakers with R1, R2 in Limited current circuit will flow through each device to prevent equipment damage.


Buzzer sound with ic UM66T

This is a simple musical doorbell sound or Buzzer sound circuit.When I switch to musical voice out of small speakers. Period of time.This size range power supply 3V,IC number UM66T audio production functions of various Toy Gallery, And increase the delay circuit includes a transistor and capacitor.
Operation of the circuit be When the switch S1, capacitor C1 will charge as fast as a result, Q1, Q2 the bias.Make a strong drop across R3 is a current flowing into pin 2 of IC1. Made IC1 work, If the switch S1 C1 will be discharged, through R1 to Q1.As a result, the lighter music of the period ever release the audio when the switch is based on the value of C1.


Create music with hand touch

Operation of the circuit. In the normal range will not work Piezo Tweeter speakers on tap, but not the point of A Q1 Q2 will flow and the work of the bias voltage fall across R2.


And the current flowing into pin 2 of IC1 IC1 make music production work out of three legs with Piezo speakers act as signals to change music

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