CY2308SXC-3T

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The CY2308SXC-3T is an advanced clock generator, Phase Locked Loop (PLL) and frequency synthesizer designed to provide easy to use, low skew, low jitter solutions for clock generation and clock distribution applications. It is a highly integrated frequency synthesis device that can generate 8 different frequencies derived from a single, main reference clock input. The eight derivative outputs can be programmed to any frequency up to 200MHz, higher than the main reference clock frequency. The device also includes jitter attenuating PLLs, a spread spectrum modulator, and an OE pin for selection of an output divider.

The CY2308SXC-3T is ideal for a wide variety of applications that require the generation of low jitter and low skew clocks. It is well suited for use in networking (e.g. Ethernet and Fibre Channel), high speed memory system, embedded system, and mixed-signal design applications such as data acquisition and sensing. Additionally, the CY2308SXC-3T can be used in video applications like PC video displays and digital video broadcasting.

The working principle of the CY2308SXC-3T is based on frequency synthesis. Frequency synthesis is the process of generating multiple output frequencies from a single high-frequency reference input clock. The device utilizes an Analog Devices (ADI) Digital Frequency Lock Loop (DFLL) architecture, which is a combination of a high-quality analog phase-locked loop (PLL) with an embedded digital control loop. The digital control loop is responsible for adjusting the output divider ratios necessary to generate the desired output frequencies, while the analog PLL is responsible for locking the PLL and thus providing the required precise frequency.

The device includes 8 output clocks, each associated with a programmable output divider and a spread spectrum modulator. The output dividers are programmable over a wide range, allowing the user to generate output frequencies up to 200MHz. The spread spectrum modulator can be programmed to generate a sine/cosine modulation on an output. The device also includes phase adjustments for programming the phase relationships between outputs. All these features allow for easy adaptation of the CY2308SXC-3T for a wide variety of applications.

The CE2308SXC-3T also includes a Fail-Safe option that prevents the outputs from shifting due to a power supply or mechanical failure. The device is RoHS compliant and operates over the commercial temperature range of 0°C to 70°C. The CY2308SXC-3T is available in a 28-Terminal TQFN package.

Overall, the CY2308SXC-3T is a highly integrated clock generator, PLL and frequency synthesizer ideal for a wide variety of applications. It offers excellent clock accuracy, low jitter and low skew outputs, making it a great choice for systems requiring low phase noise clock signals. The potential applications for this device range from general-purpose clock generation and clock distribution to high-speed memory systems, embedded systems and mixed-signal designs.

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