CJMCU-5351 Si5351A Si5351 I2C Clock Generator Breakout Board Module Signal Generator Clock 8KHz-160MHz For Arduino DC 3V Description: Never hunt around for another crystal again, with the Si5351A clock generator breakout ! This chip has a precision 25MHz crystal reference and internal PLL and dividers so it can generate just about any frequency, from <8KHz up to 150+ MHz. The Si5351A clock generator is an I2C controller clock generator. It uses the onboard precision clock to drive multiple PLL's and clock dividers using I2C instructions. By setting up the PLL and dividers you can create precise and arbitrary frequencies. There are three independent outputs, and each one can have a different frequency. Outputs are 3Vpp, either through a breadboard-friendly header or, for RF work, an optional SMA connector. We put this handy little chip onto it's own breakout board PCB, with a 3.3V LDO regulator so it can be powered from 3-5VDC. We also put level shifting circuitry on the I2C lines so you can use this chip safely with 3V or 5V logic.

Features:

1. Generates up to 3 non-integer-related frequencies from 8 kHz to 160 MHz

2. I2C user definable configuration

3. Exact frequency synthesis at each output (0 ppm error)

4. Highly linear VCXO

5. Optional clock input (CLKIN)

6. Low output period jitter: 100 ps pp

7. Configurable spread spectrum selectable

8. Operates from a low-cost, fixed frequency crystal: 25 or 27 MHz

9. Supports static phase offset

10. Programmable rise/fall time control

11. Glitchless frequency changes

12. Separate voltage supply pins:

- Core VDD: 2.5 or 3.3 V

- Output VDDO: 1.8, 2.5, or 3.3 V

13. Excellent PSRR eliminates external power supply filtering

14. Very low power consumption

15. Adjustable output-output delay

16. Available in 3 packages types:

- 10-MSOP: 3 outputs

- 24-QSOP: 8 outputs

- 20-QFN (4x4 mm): 8 outputs

17. PCIE Gen 1 compliant

18. Supports HCSL compatible swing

Description:

The Si5351 is an I2C configurable clock generator that is ideally suited for replacing crystals, crystal oscillators, VCXOs, phase-locked loops (PLLs), and fanout buffers in cost-sensitive applications. Based on a PLL/VCXO + high resolution MultiSynth fractional divider architecture, the Si5351 can generate any frequency up to 160 MHz on each of its outputs with 0 ppm error. Three versions of the Si5351 are available to meet a wide variety of applications. The Si5351A generates up to 8 free-running clocks using an internal oscillator for replacing crystals and crystal oscillators. The Si5351B adds an internal VCXO and provides the flexibility to replace both free-running clocks and synchronous clocks. The Si5351B eliminates the need for higher cost, custom pullable crystals while providing reliable operation over a wide tuning range. The Si5351C offers the same flexibility but synchronizes to an external reference clock (CLKIN).

Applications:

HDTV, DVD/Blu-ray, set-top box

Audio/video equipment, gaming

Printers, scanners, projectors

Residential gateways

Networking/communication

Servers, storage

XO replacement

Package includes:

1 x CJMCU-5351B Si5351B Clock Signal Generator