CY2305SXC-1H

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CY2305SXC-1H is a clock synthesizer and frequency generator that is used to generate a low-cost, low-jitter, single-frequency crystal clock output. This has wide applications in different industry-standard clock and data systems, such as telecommunications, telemetry, automotive, industrial control, medical, and avionics. The device has a very small form factor and consumes less than 300mW of power.

The CY2305SXC-1H is available in 25MHz, 50MHz and 100MHz versions, designed for multiple frequency applications. It features a wide range of frequency synthesis, ranging from 6kHz ~ 200MHz. The internal PLL supports up to 11 inputs, which enables simultaneous frequency switchover for low-frequency, medium-frequency and high-frequency applications. It is also suitable for applications such as jitter attenuation, clock and data recovery, frequency translation and frequency derivation.

The CY2305SXC-1H\'s working principle is based on phase-locked loop (PLL) technology, incorporating an integrated VCO. The input reference clock is processed through a phase detector circuit and the output VCO frequency can be adjusted based on the reference input according to the control logic. This helps the CY2305SXC-1H to achieve precise frequency conversion and waveform stabilization.

In the CY2305SXC-1H, the VCO feedback is not clock based, but derived from the same reference input. This is why the integrated VCO has a higher output frequency than the input reference. With its integrated high-stability VCO, high frequency output and low jitter, the CY2305SXC-1H is ideal for applications such as frequency multiplication and serial data clocking. It can be used in systems to regenerate serial data streams.

The low phase noise and jitter make the CY2305SXC-1H suitable for distributed clock systems. These systems typically use digitally programmable crystals, much like quartz crystals, to produce high-frequency reference oscillations. With its integrated VCO, the CY2305SXC-1H can be used to drive several clock outputs directly, instead of only one oscillator being sufficient for all the required clock speeds. This means that it would be possible to use distributed clocks effectively, rather than using a single central oscillator.

The CY2305SXC-1H also features an integrated voltage regulator which, when enabled, provides a stable supply voltage for the output clock signals. This eliminates the drift and variation problems associated with environmental conditions and also helps in long-term stability of the output frequency and low-noise operation. The device also features a temperature-compensated reference oscillator (TCXO) for improved frequency stability.

The integrated digital control interface allows for full integration of the device into most system designs. The CY2305SXC-1H offers programmable clock output levels, frequency switchover, skew management, synchronization and noise reduction. Additionally, thanks to the integrated PLL, it can accept multiple input reference frequencies and independently generate and control output clocks.

The CY2305SXC-1H is a highly versatile PLL that provides a low-cost solution for producing stable, low-jitter clock and data signals. With its wide range of frequency synthesizing capabilities, it is suitable for numerous applications such as telecommunications, telemetry, automotive, industrial control, medical and avionics.

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