1. Adjustable output power,
2.25 ~ 6000 MHZ frequency output,
3. The output audio range AM,
4. The output audio range FM,
5. Have frequency sweep function,
Above are some of the project function, failed to give details about, still hope forgive me a lot,
Below to introduce one of the main components of HMC833, manual inside some data, there is no longer wordy, hope to communicate with you and share more dry,
Hardware design:
Manual data: 1. The website (https://www.analog.com/cn/products/hmc833.html#product-overview
2. The website information, principle and the PCB design can get twice the result with half the effort, pure hardware hobbyists HMC833 can refer to the datasheet layout, such not only can avoid some mistakes, also can improve the performance of the board, remember well block, protect your high frequency signal, played more holes and join the shield,
3. For the board material is also very important, especially in the high frequency part (more than 3 GHZ), the general rigid PCB like FR4 material when it is difficult to meet the high frequency power attenuation, don't have other conditions can use flexible copper clad, have obvious effect to the promotion of power,
Software design:
1. HMC833 has two kinds of control mode, is a kind of HMC mode: single from the machine control, another is the open mode: (up to 8) from the machine control, as long as more than the latter advantage HMC833 used a set of SPI bus can, need not every HMC833 using a set of SPI bus, save IO
2. HMC833 when switched on, if it is enabled, the obvious fever, under 6.4 V voltage, the current is controlled in 0.3 A, if the control is not enabled HMC833 boot and the VCO subsystem, at around 0.1 A current, no fever, at the time of control HMC833 close attention should be paid to control order, first close the VCO subsystem, close HMC833 can make again, open the order on the contrary, the first open HMC833 can make, and open the VCO subsystem, this understandable, as A result of using SPI control
3. HMC833 is can also save an IO, the software can make, save the switch control circuit and an IO pin,
more details design can add WeChat ID: Science - Technology or qq: 2692377302 exchange
Here are in haste test HMC833 spectrum diagram, please appreciate
CodePudding user response:
The building Lord, I would like to ask about regulating which register values can adjust the intensity of the output power of HMC833 chip? Our company is HMC821 and, 822,CodePudding user response:
Phase noise is not so good ah see spectrum, what's your reference?CodePudding user response: