CY2305SXC-1HT Integrated Circuits (ICs)

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CY2305SXC-1HT is an integrated phase-locked loop (PLL) based clock generator. It works by locking an output frequency to an external frequency reference. It has a wide range of application fields, especially in wireless communications, broadcast and multimedia and portable mobile devices.

The CY2305SXC-1HT can generate a frequency up to 600MHz from 0.005MHz reference frequency. It has an integrated crystal oscillator, which gives it good accuracy, resolution and stability. The device is designed to provide very low jitter and excellent phase noise performance. It also features an adjustable voltage-controlled oscillator (VCO) range with programmable outputs.

The working principle of the CY2305SXC-1HT is very simple. The input frequency reference (0.005MHz to 600MHz range) is fed into the Integrated Voltage Controlled Oscillator (VCO). This provides an output frequency in the range of 0.01MHz up to 600MHz. The VCO output is then fed back to the input of the PLL loop and compared to the input frequency reference. Any difference in the two signals is used to adjust the VCO output frequency.

The CY2305SXC-1HT then uses a voltage-controlled analog multiplier (VCM) to multiply the reference frequency by a programmable divider. This divider is set to a programmable value depending on the application. The output of the VCM then provides an output frequency that is an exact or approximate multiple of the reference frequency. The output frequency accuracy is controlled by the VCO output frequency accuracy and the accuracy of the multiplication process.

The CY2305SXC-1HT also features an adjustable rise and fall time and a configurable output blanking and polarity. This allows designers to tailor their output clock waveform for specific applications, such as Ethernet interfaces. Additionally, the device features adjustable slew rate and spread spectrum clocking, which reduce EMI emissions. with configurable output enable, output voltage and spread percentage.

In summary, the CY2305SXC-1HT is an integrated PLL based clock generator which is designed to provide a wide range of clock frequencies from a 0.005MHz reference frequency up to 600MHz. It has integrated crystal oscillator for good accuracy, resolution and stability. The device also has adjustable rise and fall time, adjustable slew rate and spread spectrum clocking, configurable output enable, output voltage and spread percentage, making it suitable for a wide range of wireless communication and multimedia applications.

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