• I would like to use ADRF6703 to design a BPSK modem, can you suggest a baseband processor with integrated DACs and digital filter which I can use with ADRF6703 for my BPSK Modem? thanks

    I would like to use ADRF6703 to design a BPSK modem in 1-3GHz frequency range to support >1Mbps data rate, can you suggest a baseband processor with integrated DACs and programmable digital&analog filters which I can use with ADRF6703 for my BPSK Modem…

  • Lock Detect Condition of ADRF6703

    Hello,

    I received a question form our customer. The customer would like to know a condition of lock detect.  We can find like that information from the datasheet in case of ADF4531. It is ahown in "Lock Detect Precision (LDP)" in page 19 of the datasheet…

  • RE: 项目停滞很久了，零中频上变频使用ADRF6703，谐波很大，专家给看看

    经查为图一为基带信号，图二为基带信号经过ADRF6703正交调制后，ADL5240再放大后的频谱，经检测是ADL5240产生的失真，根据datasheetADL5240要求输入小于-11dbm，ADRF6703输出的频谱为-17dbm，产生的非线性为什么呢？

  • ADRF6703 Lo input level

    Hi,

    I have a question.

    Q: According to the data sheet, Lo input level = 0dB typ

        Is it possible to present the Min value?

       

    Lo input source is another ADRF6703 for synchronization.

    Because it is Typ 0.1 dBm as the spec of LO out, it attenuates by 

    …

  • RE: ADRF6703:internal SW

    I checked the switch isolation at RF=2140MHz and I observed 68dB change in output power when ENOP was toggled.

    Regarding the switching time, this was difficult to measure because it is so fast. I would estimate the on and off power settling time is on…

  • RE: ADRF6703 Reference Input

    Hi Sergey,

    • Absolute maximum ratings are in terms of DC (no ac-coupling) and are not intended for typical use. They are the maximum temporary stress limits.
    • A square-wave would provide the best phase noise due to the higher slew rate compared to…

  • adrf6703IQ调制频谱图，请问专家如何去除谐波

    基波为0.5VPP的IQ信号，经过了ADRF6510放大了6个 dB左右，测量0.9V  vpp，adrf6703使用内部PLL，直流工作点0.5V,二次和三次谐波很大，如何解决？

    • 9d460fb9jw1e8wp8j1gr1j218g0p1aeh.jpg
    • View

  • IQ调制器，ADRF6703本振抑制度较差，只有20dBc?单边带的信号抑制却能达到40dBc请问原因？

    在做IQ调制器，使用ADRF6703发现本振抑制度只有20dBc，使用内部锁相产生本振2200MHz；IQ信号使用信号源，IQ信号频率10MHz（连续波）峰峰值0.5V，经过差分放大器ADA4903-2（输出共模电压0.5v，增益1）进行单端变双端后进入ADRF6703，输出信号2210MHz功率在4dBm左右，这样得到的信号的本振抑制度不好，只有-18dBm，而单边带的信号抑制却能达到40dBc以上，不知道是什么原因？还有PDF中说的载频馈通调零（nulling）不知道是啥意思？怎么调零？

    …

  • 调制器adrf6703的载频馈通调零问题

    PDF中给出的载频馈通调零后曲线和不调零的载频馈通曲线相差较大，实际应用中需要调零吗？怎样调零？

  • RE: Mod/Demod IQ Selection

    Here are some options that will cover the 2.4 GHz band

    IQ Mod: ADL5375

    IQ Demod: ADL5380 or ADL5382

    PLL to drive LO Ports: ADF4351

    IQ Mod with integrated PLL: ADRF6703

    IQ Demod with integrated PLL: ADRF6820

    Integrated Transceiver: AD9361