Description
Overview
The RF Mando Si5351A I2C Clock Generator Breakout Board 3V-5V CJMCU-5351 is a precision I²C programmable clock generator covering 8 kHz to 160 MHz. Ideal as a reference oscillator for SDR receivers, RF test rigs, and frequency-counter calibration — also widely used by locksmiths pairing RF Mando TY-series cloners.
Key Features
- Si5351A CMOS clock generator — 3 independent outputs
- Frequency range: 8 kHz to 160 MHz (multi-synth)
- I²C interface — only 2 pins for full control
- 3.3V tolerant; module accepts 3V–5V supply
- Onboard crystal reference for high stability
Technical Specifications
| Input Voltage | DC 3V – 5V |
|---|---|
| Interface | I²C (address 0x60 / 0x61) |
| Outputs | 3 × CLK (CMOS) |
| Frequency Range | 8 kHz – 160 MHz |
| Jitter | < 50 ps RMS |
Wiring & Application Guide
- Connect VCC to 3.3V or 5V, GND to ground.
- Pull SDA / SCL to MCU I²C lines (use 4.7 kΩ pull-ups).
- Drive via Adafruit_Si5351 library or direct I²C commands.
Typical uses: SDR local oscillator, RF signal generator front-end, frequency reference for RF Mando cloners, and MCU clock distribution.
📦 Wholesale & Bulk Orders
Important: All prices EXW Xiamen (China) and do NOT include shipping, duties, or taxes. For B2B wholesale quotes, MOQ negotiations, or OEM/ODM customization, contact Joanna Chen directly.
- 📱 WhatsApp / Telegram: +86 189 6031 3731
- 📧 Email: Joanna@rfmando.com
- 🌐 Website: www.rfmando.com
Compatible with RF Mando TY-series remote cloners and frequency generators for professional locksmiths and access-control installers.
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