SIT3809AI-D-25SZ

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Programmable Oscillators

Programmable oscillators, also known as electronically tunable oscillators, combine the precision and stability of a crystal oscillator with the flexibility of a voltage-controlled oscillator (VCO). The term "programmable" suggests that an oscillator can be controlled through software or remote control. They are designed primarily to generate phase- or frequency-locked signals with a wide range of frequency and accuracy.

The SIT3809AI-D-25SZ is a programmable oscillator that is designed to provide the flexibility to customize frequency and rise/fall times. It provides low output characteristics with wide frequencies, ranging from 1MHz to 136MHz with a range up to 25MHz. It also has excellent rise/fall time of only 0.08ns.

The SIT3809AI-D-25SZ has two basic operating modes, the frequency-locked mode and the pulse-width modulated mode. In frequency-locked mode, the output frequency is set by the voltage applied to the control pins. This allows for greater control over the exact frequency of the output. The pulse-width modulated mode allows for the pulse width to be adjusted by the voltage applied to the control pins. This allows for finer control over the rise/fall times of the output.

The SIT3809AI-D-25SZ has a wide range of applications. It can be used in test and measurement systems, telecom networks, clock distribution and generation, synchronous/asynchronous communication, cryptography, signal conditioning and control, and aerospace applications. One of the most common applications of this device is in radio communication. Since the output frequency of the SIT3809AI-D-25SZ can be set accurately, it makes this device ideal for accurately controlling the carrier frequency of the radio signal.

The SIT3809AI-D-25SZ is also widely used in medical applications, such as monitoring vital signs, as well as medical imaging systems. The precision of the output frequency makes it suitable for accurate readings of electrocardiogram signals. Its low power consumption also makes it a popular choice for portable devices, such as heart rate monitors or devices used in home health care.

The working principle of the SIT3809AI-D-25SZ is based on a voltage-controlled oscillator (VCO). The device is programmed via a control voltage applied to one of its digital control inputs. The voltage range of this input is 2.0 V to 5.5 V. This control voltage is then used to adjust the frequency of the output signal.

The SIT3809AI-D-25SZ is an ideal choice for applications where precise, yet flexible control over the frequency of an output signal is desired. Its wide range of frequencies, low power consumption, and excellent rise/fall times make it an attractive choice for a variety of applications. It is also a popular choice for radio communication and medical applications due to its accurate output frequency and low power consumption.

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