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[FAQ] SRC4192: Differences between the SRC4192 and the SRC4193?

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Part Number: SRC4192

What are the differences between the SRC4192 and the SRC4193?

Regards,
Collin Wells
Precision ADC Applications

  • Here is a table breakdown of the differences between the SRC4192 and the SRC4193.

    Features

    SRC4192

    SRC4193

    Device control

    Hardware controlled

    Software controlled

    Programmable Digital Output Attenuation

    NOT supported

    Supported; Digital attenuation control is adjustable from 0 dB to –127.5 dB in 0.5-dB steps.

    Direct Downsampling option for Decimation filter

    NOT supported

    Supported; This can be used in cases when aliasing is not an issue (ex: when output fs is equal or greater than input fs).

    Advantage: Significant reduction is group delay associated w Decimation filter, allowing lower latency SRC.

    RATIO output

    NOT supported

    Supported; This can be used as an indicator or flag output for host device.

    Reset and Power-down Operation

    Using RST pin; With external clock source active, assert RST low for min 500ns

    Using RST pin; BUT we need to wait at least 500uS after RST rising edge due to internal logic requirements;

    SRC4193 also supports power-down mode [Using PDN bit of Control Register 1]

    Regards,
    Collin Wells
    Precision ADC Applications

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