The SI5350C-B04731-GT is a highly integrated clock generator from Skyworks Solutions Inc. that offers a flexible and programmable solution for generating precise clock frequencies. This device utilizes a fractional-N Phase-Locked Loop (PLL) to synthesize a wide range of output frequencies from a single crystal or reference clock. It is designed to simplify clock tree design and reduce the overall system cost in various electronic applications.

Applications

• Networking Equipment: Routers, switches, and network interface cards (NICs) requiring precise timing.
• Embedded Systems: Microcontrollers and microprocessors needing flexible clock signals.
• Consumer Electronics: Set-top boxes, audio equipment, and gaming consoles utilizing custom clock frequencies.
• Industrial Automation: Programmable logic controllers (PLCs) and motor drives requiring accurate timing.
• Test and Measurement Equipment: Frequency synthesizers and signal generators needing programmable clock sources.

Features

• Generates up to 4 independent clock outputs.
• Frequency range: 1 kHz to 200 MHz.
• Integrated fractional-N PLL for fine frequency resolution.
• I2C interface for easy programming and control.
• Low phase noise and jitter performance for high-quality clock signals.
• Small footprint package (MSOP-10).
• Output enable/disable control for power saving.

Benefits

• Simplifies clock tree design by replacing multiple fixed-frequency oscillators.
• Offers flexible frequency synthesis, allowing for customized clock frequencies.
• Improves system performance with low-jitter clocks, leading to higher data rates and lower error rates.
• Reduces bill-of-materials (BOM) cost by integrating multiple clock functions into a single IC.
• Saves valuable board space with its compact MSOP-10 package.
• Enables easy frequency adjustment and control via the I2C interface.
• Reduces power consumption through output enable/disable functionality.

Technical Specifications

The SI5350C-B04731-GT operates on a supply voltage range of 2.5V to 3.3V. It requires an external crystal or reference clock, typically in the range of 25 MHz to 27 MHz. The device features a typical phase noise performance of -114 dBc/Hz at 1 kHz offset and -140 dBc/Hz at 10 kHz offset. The output drivers are configurable for different drive strengths to optimize signal integrity. The I2C interface supports both standard and fast modes. The device also incorporates a power-down mode for minimizing power consumption during periods of inactivity. The operating temperature range is -40°C to +85°C.

In summary, the SI5350C-B04731-GT provides a versatile, efficient, and cost-effective solution for generating precise clock signals in a wide range of electronic applications. Its programmability, low jitter performance, and small size make it an excellent choice for modern system designs.