Si5351A 클럭 생성 모듈 -8Khz ~ 160Mhz
(Adafruit Si5351A Clock Generator with STEMMA QT
- 8KHz to 160MHz)
개요
- 본 제품은 Si5351A 클럭 생성 모듈 -8Khz ~ 160Mhz 입니다.
- 25MHz 크리스탈 리퍼런스와 내부 PLL/디바이더를 가지고 있어 8Khz에서 150Mhz 사이의 주파수를 만들어 낼 수 있습니다.
- I2C 인터페이스를 가지고 있으며, 3V/5V 시스템과 사용이 가능합니다.
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특징
- Datasheets, PCB CAD files, and Fritzing objects available in tutorial
- Si5351 specifications:
- Generates up to 3 non-integer-related frequencies from 8 kHz to 160 MHz
I2C user definable configuration Exact frequency synthesis at each output (0 ppm error) - Highly linear VCXO
- Low output period jitter: 100 ps pp
- Configurable spread spectrum selectable at each output
- Operates from a low-cost, fixed frequency crystal: 25 MHz on board
- Supports static phase offset
- Programmable rise/fall time control
- Glitchless frequency changes
- Excellent PSRR eliminates external power supply filtering
- Very low power consumption
- Adjustable output-output dela
- PCIE Gen 1 compliant
- Supports HCSL compatible swing
- Product Dimensions: 25.3mm x 17.7mm x 4.7mm / 1.0" x 0.7" x 0.2"
- Product Weight: 1.7g / 0.1oz
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Never hunt around for another crystal again, with the Si5351A clock generator breakout from Adafruit! 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 edge-launch SMA connector for output #1. (If you need SMA-connector outputs for all three ports, check out the non-QT breakout here)
To get you going fast, we spun up a custom-made PCB in the STEMMA QT form factor, making it easy to interface with. The STEMMA QT connectors on either side are compatible with the SparkFun Qwiic I2C connectors. This allows you to make solderless connections between your development board and the Si5351 or to chain it with a wide range of other sensors and accessories using a compatible cable. Onboard 3.3V LDO and level shifters means its ready for use with 3V or 5V power and logic!