CY22381SXI-181

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The CY22381SXI-181 is a clock generator and phase-locked loop (PLL) frequency synthesizer, widely used in telecommunications, data communications, and consumer electronics applications. It is designed with fully synthesized and programmable features for frequency generation. It is integrated with a low power, high performance voltage-controlled oscillator (VCO) and can generate frequencies from below 1 kHz up to 225 MHz with a frequency resolution of 25 kHz. It also provides an external reference input and an external clock reference output.

The CY22381SXI-181 has two main components: the PLL and the VCO. The PLL has two parts: the voltage-controlled oscillator (VCO) and the phase-locked loop (PLL). The VCO generates a signal by applying a voltage to an external tuning capacitor. The output of the VCO is then used to frequency-lock the PLL. Once the PLL is locked, the VCO will maintain a frequency that is proportional to the input voltage. The PLL also provides a reference input and an external clock output.

In applications, the CY22381SXI-181 can be used to generate signals for communications systems, such as Ethernet and cable television, as it is able to provide a high accuracy and low jitter signal. It also can be used to generate clock signals in embedded systems and to generate frequency-modulated signals used in wireless communication systems. It can also be used in frequency synthesis, pulse width modulation (PWM), or signal modulation applications.

The CY22381SXI-181 provides several configurable features such as phase-locked loop parameters (e.g., phase error detection, frequency detection, and phase-locked loop bandwidth), power down modes, and clock / data communication interface. It also provides a fully programmable start-up time for configurable control bits. The CY22381SXI-181 also has a maximum jitter performance, frequency generation range, and a programmable output frequencies through an internal or external source.

The CY22381SXI-181 is designed with a wide frequency range and resolution for easy customization and time-saving features. Its design has been simplified to a few simple steps; first the desired frequency is entered, then the necessary parameters are configured, and finally, it is tested and compared with the desired frequency. The frequency accuracy, low noise performance and minimal jitter makes this device suitable for a variety of applications, such as in clock generation, synchronization, data communication and frequency synthesis.

The CY22381SXI-181 has a few important peripherals: a reference clock pin, VCO startup circuit, a low jitter Config register, and a programmed frequency barrier selector. The reference clock pin is used to provide the PLL with a reference signal and the VCO startup circuit is used to reduce start-up time for the PLL. The low jitter Config register is used to write the programmed frequency of the CY22381SXI-181. The programmed frequency barrier selector is used to enable or disable the PLL from entering a certain frequency range.

The CY22381SXI-181 is suitable for applications in communications, video, audio, and timing system products. It is designed with a low noise performance and good frequency accuracy, making it ideal for use in high accuracy and low jitter clock generation applications. The flexibility, frequency range, and resolution make this device ideal for a wide range of applications.

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