Introducing the SG-SM4400-B High-Quality PLL Frequency Synthesizer Development Board by Vista RF, a meticulously designed tool for electronics enthusiasts and educational purposes. This development board is a testament to precision engineering, combining a well-organized layout with stable performance, making it an ideal choice for ham radio hobbyists and educational settings in science and technology.

Key Features:

• Versatile Frequency Range: The board offers an output frequency range from 35 MHz to 4.4 GHz, catering to a wide array of applications.
• Flexible Power Supply: It operates efficiently on a supply voltage of 4-9V, ideally at 5VDC.
• Diverse Output Signals: The board generates a 2.2 GHz to 4.4 GHz sine wave for fundamental frequencies and a 35 MHz to 2.2 GHz square wave for fundamental division frequencies.
• Strong and Programmable Signal Output: It features a wideband output with a signal strength of +5dBm, which is programmable for various needs.
• High-Quality RF Connector: Equipped with an SMA female connector, ensuring reliable and high-quality connections.
• User-Friendly Control Interface: The board includes a three-wire Serial Peripheral Interface Bus for easy control and programming.
• Accurate Reference Clock: Comes with a default 10.000 MHz reference clock, which can be externally connected through an SMA interface for enhanced precision.
• Lightweight Design: Weighing just 16g, this synthesizer board is both portable and convenient for various setups.
• Signal Output Connector: SMA femaleSize: 49 x 37 x 12mm / 1.93″ x 1.45″ x 0.47″

The SG-SM4400-B from Vista RF is more than just a development board; it’s a gateway to exploring the vast world of frequency synthesis, perfect for DIY projects and educational exploration in electronics.

Specifications:
Output frequency range: 35M-4.4GHz
Supply voltage: 4-9V (5VDC)
Output signal:
2.2GHZ–4.4GHz sine wave (fundamental)
137MHZ–2.2GHz squarewave (fundamental division)
Output signal: wideband output, signal strength: + 5dBm (programmable)
RF connector: SMA female head
Control Interface: Three-wire Serial Peripheral Interface Bus
Reference Clock: 10.000MHZ (default), through the interface to an external SMA
Weight: 16g
Connection:
The module can pin microcontroller LCD1602 / LCD12864 module connection (can be plugged directly Backward), convenient software debugging, both lock indicator (Lock). Pin correspond to the following:
GND ————————- GND
VDD (5V) ——————- VCC
VO ————————– NC (empty)
RS ————————– NC (empty)
R / W ————————- MUXOUT
EN ————————– CLK
DB0 ————————- DATA
DB1 ————————- LE
DB2 ————————- CE (has 10K pullup)
DB3 ————————- GND (do not take)

Reference Clock:
10.000MHZ default reference clock signal is active clock or an external reference clock signal, you need to modify the three-way connection with a soldering iron, connect EXT_REF external reference signal.

Package Included:
1 x SG-SM4400-B RF Signal Source Frequency Synthesizer Development Board