• AD608: FM detection

    In the past, I found AD608 which is working very well on 455kHz and 10,7MHz.
    There is problem with demodulator. I was using XR215. This PLL demodulator had
    good behavior only for 455kHz. On 10,7MHz it was unfit for low frequency
    stability…
  • AD608 - Input Offset Auto nulling method?

    AD608 - What method is used for input offset auto nulling? Is the offset nulling loop a periodically updated (i.e. sampled) control loop or is it a continuous time control loop? If it is sampled, what is the approximate sampling rate

  • AD608 RSSI PERFORMANCE at supply voltage 5V

    Hi, anyone


     

    We want to know AD608 RSSI PERFORMANCE at supply voltage 5V.
    Could you please provide us a specification of RSSI PERFORMANCE at supply voltage 5V?


     

    Below is the specification at Supply Voltage 3V.

    We want to know a value for each…

  • FAQ: Disabling the AD608's Mixer/Amplifier and operating just the Log Amp/Limiter

    Q.

    I want to use just the AD608's log/limiting amplifier and want to disable the mixer and amplifier. How should I tie off the mixer and amplifier pins?

    -----------------------------------------------------------------------------------------…

  • 中频接收机芯片AD608的应用!小虾米请教

    小虾米最近对通信系统中的一些东西比较感兴趣,想借鉴接收机中的部分概念,进行一些高频信号的检测。通过资料查阅,确定了一个基于中频接收

    芯片AD608的思路,但苦于没有通信系统方面的硬件应用经验,故在此求教。本人方案如下:                                                                                                      方案框图

    AD608

    问题的主要部分集中在混频级的本振输入这一块。

    问题:(1)请教大家一下,一般通信系统中混频级的本振输入,通常情况下是否需要恒定功率水平,或者幅值恒定?

              (2)AD608集成混频器对于本振的输入要求,在datasheet里有这样一句描述:An on…

  • AD7725: FSK modulator

    Do you have a solution for a simple FSK modulator/demodulateur (f1 25 Hz and
    f2"25 Hz at 300 bauds) using AD7725 ?

     

    The AD7725 cannot be used to directly demodulate. It samples the input and
    provides a programmable digital filter…
  • RE: Selction issues - looking to build a sweep marker generator

    Hmmm, this sounds like an amateur radio project -- I recognize some of the IFs as being used in my Boatanchor collection.

    (My HQ-170 used a third IF of 60 kHz. )

    There was a scalar network analyzer design in QEX (www.arrl.org) using the AD8302 and…

  • TAGS LIST: Data Converters

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