ADF/4351 development board reference to the official circuit principle design, the output frequency range: 35M-4.4G (ADF4351)

Technical parameter:

1. output frequency range: 

35MHz--4.4GHz (ADF4351)

2. power supply voltage: 4-9V (5VDC)

3. output signal: 2.2GHZ--4.4GHz sine wave (Ji Bo)

137MHz--2.2GHz (ADF4350) Fang Bo (fundamental frequency division)

35MHZ---2.2GHz (ADF4351) Fang Bo (fundamental frequency division)

4. output signal: output is broadband, signal strength: +5dBm (programmable setting)

5. RF connector: SMA header

6. control interface: three line SPI

7. reference clock: 10.000MHZ (default), can be connected through the SMA interface

8. weight: 15g

Wiring method:

The module can be connected with the pins of the LCD1602/LCD12864 module (which can be directly inserted), which is convenient for software debugging and has the locking indication (Lock). The pins correspond as follows:

LCD1602/LCD12864 ADF4350/ADF4351

1.GND-------------------------GND

2.VDD (5V) -------------------VCC

3.VO--------------------------NC (empty)

4.RS--------------------------NC (empty)

5.R/W-------------------------MUXOUT

6.EN--------------------------CLK

7.DB0-------------------------DATA

8.DB1-------------------------LE

9.DB2-------------------------CE (pulled on 10K)

10.DB3-------------------------GND (not connected)

Reference clock:

The default reference clock signal is the 10.000MHZ active clock, and the external reference clock signal can also be used. The three link connection method needs to be modified by the iron, and the EXT_REF is connected as an external reference signal.

RF output:

For the convenience of use, the default is broadband output, the output is two differential signals, one can be used for output, and the other can be used to monitor the output.