Elecbee ADF4351 PLL RF Frequency Synthesizer Development Board 35MHz-4.4GHz 3-Wire Serial Control SMA Female

Elecbee ADF4351 PLL RF Frequency Synthesizer Development Board

The Elecbee ADF4351 PLL RF frequency synthesizer development board provides programmable RF output from 35MHz to 4.4GHz. Designed for RF signal-source development, wireless communication experiments, local oscillator circuits and laboratory testing, the board combines an integrated PLL and VCO with a three-wire serial control interface and SMA female RF output.

Technical Specifications

• Synthesizer IC: ADF4351
• Output Frequency Range: 35MHz–4.4GHz
• Fundamental VCO Range: 2.2GHz–4.4GHz
• RF Output Dividers: Divide-by-1, 2, 4, 8, 16, 32 or 64
• Control Interface: Three-wire serial interface using CLK, DATA and LE
• Status Monitoring: Lock-detect output
• Reference Oscillator: Board-specified 25MHz active oscillator
• Nominal Oscillator Tolerance: Board-specified ±50ppm
• Board Input Voltage: 4–9V DC according to the board specification; 5V recommended
• Power Connector: DC002
• RF Output Connector: SMA female
• Board Dimensions: Approximately 48.48 × 36.5mm

Programmable Frequency Control

The ADF4351 registers are programmed through the board’s CLK, DATA and LE control lines. When connected to suitable external programming hardware and software, the module can be configured for fixed-frequency generation, programmable frequency sweeps and frequency-hopping applications. The lock-detect output allows the host controller to monitor PLL locking status.

Wideband RF Output

The integrated ADF4351 VCO operates from 2.2GHz to 4.4GHz. Lower output frequencies are generated using programmable divide-by-2, 4, 8, 16, 32 or 64 settings, extending the nominal output range down to 35MHz. The resulting RF signal is not specified as a laboratory-grade pure sine wave and can contain harmonics.

Frequency Resolution

Frequency resolution is determined by the reference frequency, phase-frequency detector frequency, fractional modulus and selected RF output divider. Fine frequency steps may be possible with suitable register settings, but a fixed 1kHz or 0.1kHz resolution is not guaranteed across the full 35MHz–4.4GHz range.

Applications

This ADF4351 frequency synthesizer module is suitable for programmable RF signal sources, local oscillator development, wireless communication prototypes, RF circuit evaluation, clock-generation experiments, externally controlled frequency sweep systems and educational electronics projects.

Integration Notes

This development board requires an external controller and suitable software; it is not a standalone signal generator with onboard user controls. According to the supplied board information, the DC002 input accepts 4–9V DC, with 5V recommended. Confirm the onboard regulator, connector polarity and supply requirements before applying power. Actual RF performance depends on the board layout, output matching, power quality and register configuration.

Package Contents

1 × Elecbee ADF4351 PLL RF Frequency Synthesizer Development Board

Note: Confirm the model, supply voltage, polarity, frequency range and connector requirements before ordering.

,,