SIT1602BI-72-28N-12.000000D

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Oscillators are capable of producing regularly-timed, accurately-reproducible waveforms. They come in a variety of forms, from simple, analog circuits to complex digital signal-generators. This article specifically focuses on the application field and working principle of SIT1602BI-72-28N-12.000000D, a type of oscillator.

SIT1602BI-72-28N-12.000000D, as the name implies, is an integrated oscillator employing BiCMOS technology. The device has a wide-range operating temperature from -20°C to +85°C and is supplied as a 6-pin SSOP package. SIT1602BI-72-28N-12.000000D has a specified expected frequency of 1602.5 Hz and a specified resistance of 72 kΩ, is guaranteed to operate over the voltage range of 1.8 V to 5.5 V. Such a device can be used in a variety of digital applications, such as communications, portable electronics, medical, automotive and gaming.

When it comes to the working principle of SIT1602BI-72-28N-12.000000D, the oscillator consists of an amplifier, a frequency-controlling network, and an external feedback (resistor), as well as a digital input. The integration of a flip-flop, NAND gates and transistors in the amplifier provide the necessary feedback in the oscillator circuit. A precision resistor provides a frequency control element from the voltage regulator, inside the oscillator circuit.

The external portion of the oscillator is the resistor, which provides feedback from the output of the oscillator back to the input. An external resistor can also be used to pull down the frequency of the oscillator. When using the resistor, the circuit will produce waveforms with higher frequency due to its lack of loading. Also, the internal frequency control network further helps to ensure that the output frequency of the oscillator does not drift over time.

When the device is operating, the transistor serves a dual purpose, providing a base current both to the amplifier and to the digital input. The transistor can be “enabled” by the logic voltage of the digital input, turning the oscillator “on”, or can be disabled when the digital input is “off”, returning the oscillator to its low-impedance start-state. The transistor is also responsible for providing the necessary base current to the amplifier, which in turn drives the frequency-controlling network.

In the specific oscillator of SIT1602BI-72-28N-12.000000D, the amp is powered by a 2.5V to 5.5V voltage supply and provides a stable output at 1602.5 Hz. The integrated 1.5V reference voltage helps to keep the output frequency within the specified tolerance of ±2%. This device has been designed for ease of use, eliminating the need for external components such as wave shaping circuitry, specialized components, or additional power supplies.

In conclusion, we can see that SIT1602BI-72-28N-12.000000D is a type of integrated oscillator that has been designed to provide precise, regular digital waveforms at frequencies in the 1602.5 Hz range. The device is suitable for use in a wide range of digital applications, such as communications, automotive, medical, gaming, and other portable electronics. The oscillator increases circuit stability, eliminates the need for external components and allows for easy frequency adjustment.

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