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  • LM1894: How to Improve the High Frequency Gain of LM1894

    TI Thinks Resolved
    Part Number: LM1894 按照参考设计电路： 1.将R1：R2设置成800:200 的时候，C10默认电压为1.4V 动态范围较大，最高可以到3.3V（1.4V-3.3V）低频增益特性很好。但是高频增益不足。 2.为了提高高频的增益，降低R1：R2的比值为500:500。 这时高频的增益会变好。但是C10的默认的电压会变高。为2.2V。动态范围为 2.2V-3.3V,导致动态范围比较小。 这样提高了高频响应，低频特性变差。 我的需求： 1.在我降低R1：R2比值的时候，不要提高C10的默认电平…
    • Answered

  • RE: LM1894 - alternate product TLV320AIC3256

    Resolved
    J san Thank you for your reply! We don't understand the fuction single-mic noise reduction algorithm, so could you let us know it? And then, LM1894 is possible to accept followings inputs. So, is it possible to reduce followings noise using TLV320AIC3256…
    • Answered

  • TLV320AIC3256 - single-mic noise reduction algorithm

    Resolved
    Other Parts Discussed in Thread: TLV320AIC3256 , LM1894 Hi all Would you mind if we ask TLV320AIC3256? TLV320AIC3256 has single-mic noise reduction algorithm and also miniDSP. Our customer would like to use it instead of LM1894 noise reduction -10dB.…
    • Resolved

  • Bringing vintage dynamics processor to life.

    Other Parts Discussed in Thread: LM1894 Hey, I'm looking at a vintage suppressor / expander someone yanked the original chips out of it, however the original if sockets are Texas Instruments. I believe there is some kind of 16 pin compandor that belongs…

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