CMT-13031-SMT-TR Audio Products

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Alarms, buzzers, and sirens are widespread throughout society for various applications and serve to alert or signal impending danger. The CMT-13031-SMT-TR is a prime example of a sound-producing device specifically designed for this purpose. Not only does it offer a reliable and highly alerting signal, but it also can be used in a wide variety of applications.

The CMT-13031-SMT-TR is an electronic sound-producing device that can be used for a wide range of applications. Its space-saving size of 0.18” x 0.41” x 0.31” (4.5mm x 10.3mm x 8mm) makes it ideal for use in small devices and highly-restricted spaces, and its enclosed design makes it relatively dust and weatherproof. Additionally, its long-lasting lithium battery power allows for up to three years of reliable operation.

The device’s application field encompasses a variety of uses. It can be used for safety and security applications within the home or workplace, including doorbells, alarms, and emergency sirens. With a choice of three tones, from low to high-pitched, it can be matched to individual sound levels for personal preferences or different applications. On the reverse side of the device is a built-in piezo sounder driven by a pulse-width modulation (PWM) driver, which can be triggered by a variety of voltages.

The working principle of the CMT - 13031-SMT-TR is quite simple. The device contains all the necessary components: a logic controller, sounder driver, and piezo sounder. The logic controller converts digital input signals to sounder driver on and off signals. The sounder driver then produces a voltage, which amplifies the piezo sounder, converting the small pressure waves to sound waves.

When a signal is received by the device, the logic controller is activated. This triggers the sounder driver to begin the PWM cycle, which produces a voltage proportional to the pulse width. Finally, the voltage drives the piezo sounder, causing sound to be emitted.

The logic controller also contains an on/off signal, as well as a clock signal. The on/off signal prevents the device from emitting undesirable sound when triggered by voltage changes. The clock signal synchronizes the on/off signal and input signals, making sure that sound is only emitted when the correct signal is present.

The CMT - 13031-SMT-TR is a reliable, effective sound-producing device. Its long-lasting battery power and enclosed design make it well suited to a wide range of applications, including doorbells, alarms, and emergency sirens. In addition, its powerful piezo sounder, driven by an adjustable PWM driver, can be customized to different sound levels.

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