Frequency range in component LTC6946IUFD-1

avivf3 on Sep 16, 2021

I wanted to ask if the LTC6946IUFD-1 component is capable of output frequencies of 2 GHz to 2.2 GHz since it is listed as having a range of 0.373 to 3.740 GHz but according to the datasheet this range is not continuous

I would love to know what the answer is

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ChrisPearson
Sep 23, 2021 +1 verified
That is correct, there is a frequency gap in all LTC6946 and LTC6948 /1 and /2 output divider states. To achieve 2G to 2.2G you will need to look at the -2, -3 or -4 version. By the way, the LTC6946 has…

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+1 ChrisPearson

on Sep 23, 2021 3:39 PM
That is correct, there is a frequency gap in all LTC6946 and LTC6948 /1 and /2 output divider states. To achieve 2G to 2.2G you will need to look at the -2, -3 or -4 version. By the way, the LTC6946 has recently been placed on the Not Recommended for New Designs list. I would strongly recommend moving to the LTC6948, or one of the other ADI PLL/VCOs that supports your frequency range.
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+1 ChrisPearson

on Sep 23, 2021 3:39 PM
That is correct, there is a frequency gap in all LTC6946 and LTC6948 /1 and /2 output divider states. To achieve 2G to 2.2G you will need to look at the -2, -3 or -4 version. By the way, the LTC6946 has recently been placed on the Not Recommended for New Designs list. I would strongly recommend moving to the LTC6948, or one of the other ADI PLL/VCOs that supports your frequency range.
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