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CD74HCT7046A: Can this IC be used to detect/lock a frequency of 107 kHz.

Arvind Kukreti
Prodigy 10 points
Part Number: CD74HCT7046A
Other Parts Discussed in Thread: CD74HC7046A

Date Sheet of CD74HC7046A/CD74HCT7046A mentions minimum center frequency of 12MHz. It also mentions "For a frequency range of 100kHz to 10MHz, the lock detector capacitor should be 1000pF to 10pF, respectively." So can I use this IC to detect a signal of 107kHz ?

  • 0
    TI__Guru* 97046 points

    Hello,

    Yes, you can do that.

    I think you're referring to the minimum center frequency from this table:

    Please take note of the specific conditions under which 12MHz is the minimum frequency. This is not the absolute minimum frequency that the device supports - but is showing you the range of frequencies you may get from the selected conditions.