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Original question:

SN74LVC1G3157: PCN of SN74LVC1G3157

SN74LVC1G3157: Reasons for updating test conditions (THD)

cafain
Mastermind 6755 points
Part Number: SN74LVC1G3157

Tool/software:

HI, Staff

Why did you update the THD test conditions?

SCES424M Datasheet

THD TEST CONDITIONS

VI=0.5Vpp, RL=600Ω, fin=600Hz to 20kHz.

SCES424O Datasheet

THD TEST CONDITIONS (DBV, DCK)

VI=1.4Vpp, Vbias=Vcc/2, RL=600Ω, fin=600Hz to 20kHz

Did you set more stringent test conditions?

Or were the test conditions similar to those for other analog switch products?

regards

cafain

  • +1
    Guru 316690 points

    In revision M, Vbias was not specified. But Vcc/2 is the only reasonable value, so I guess it has not changed.

    In both revisions M and O, VI values are specified in figure 7-9/6-9. I guess the VI value in the table was not correct in revision M, and there are no actual changes.