• AD9837

    When using the MSB out feature/function, what is the amplitude of the output pulse?  Is it CMOS levels?

    Thanks,

    Tim

  • dual ad9837 and phase shifting

    I wanna control dual ad9837 by Atmel at32uc microprocessor. Write a random frequency number to both ad9837, for example, in a range of 20 - 30 KHz, but do not sweep the frequency. One of ad9837 generates the square wave with 0 degree phase shift, but…

  • AD9837  How to generate the sine wave (0~15V adj 0~5kHz adj)

    Hello, i need a sine wave (0~15V adj , 0~5kHz adj, > 30mA). I found AD9837 several days ago,but i don't know if AD9837 is suitable.  Can ADI provide the solution? Thanks.

  • RE: ad9837输出不正常

    您好,论坛中有关ad9837的帖子及解答您可以先浏览一下。

    https://ezchina.analog.com/content?query=AD9837

  • RE: EVAL-AD9837

    Hi,

    The AD9837 will lose the data stored in the registers after power cycle. Unfortunately, we do not have any DDS that can retain its settings after power down because the memory used for them are volatile. But the AD9837 offers a sleep function wherein…

  • RE: How to do Lock-in measurement with external signal,"sine wave," to act as a reference by using ADA2200.

    Hello,

    One way of synchronizing an external sinewave to the ADA2200 would be to generate the sinewave using a device like the AD9837.  By sourcing the MCLK of the AD9837 and the CLKIN of the ADA2200 from the same clock, the sinewave output and the ADA2200…

  • AD9837 labview issue

    Dear All,

    When I opened the AD9837's software (didn't connect to the EVB)and it shown as below pic .

    How could I  solve this problem?

    My environment informaion as below:

    a. My OS is Win 7 32 Bit

    b. The software which is" AD9837 Evaluation…

  • RE: 关于DDS芯片选型

    AD9833,AD9837/9838比较合适

  • RE: 有关DDS芯片AD9837的功耗问题

    各位,单纯只给AD9837片选和时钟高电平倒是没有那么大的功耗,但是AD9837的电源引脚自己会倒灌出2.2V的电压,加上给AD9837供电的LDO芯片时,功耗就上去了。而此原因竟是AD9837倒灌出2.2V的电压给LDO芯片,此电压结果被拉低到0.5V。初始化时明明只给片选和时钟信号高电平,为什么AD9837的电源引脚自己会倒灌出2.2V的电压呢??这是芯片的自有特性么?为什么呢?各位工程师,帮帮忙

  • Time limit t8(SCLK falling edge to FSYNC rising edge time) of AD9837

    Dear Sir/Madam,

    I have a question for your good AD9837 Programmable Waveform Generator.
    As for your time limit t8(SCLK falling edge to FSYNC rising edge time) on your fig-3 Serial Timing Chart AD9837 datasheet ,it shows "10ns min / (t4-5)ns max".…