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#1
May 11th 04, 04:16 PM
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calculate RF choke?
I'm sure this is in the handbook, but darned if I can find it.
I'm using a MAR-6 after a DDS and filtered output for a little gain into a passive mixer, the DDS will be used for 1-30 MHz or so, how do I calculate the value of the RF choke at the DC supply side? I hope this question is at least coherent... Tim ka8ddz |
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#2
May 11th 04, 06:36 PM
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"Tim" wrote in message
... I'm sure this is in the handbook, but darned if I can find it. I'm using a MAR-6 after a DDS and filtered output for a little gain into a passive mixer, the DDS will be used for 1-30 MHz or so, how do I calculate the value of the RF choke at the DC supply side? I hope this question is at least coherent... It's optional, especially at such low frequencies. I wouldn't bother with it, just use the resistor mentioned in the data sheet. 73, Leon -- Leon Heller, G1HSM http://www.geocities.com/leon_heller |
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#3
May 11th 04, 10:53 PM
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On Tue, 11 May 2004 11:16:12 -0400, "Tim" wrote:
I'm sure this is in the handbook, but darned if I can find it. I'm using a MAR-6 after a DDS and filtered output for a little gain into a passive mixer, the DDS will be used for 1-30 MHz or so, how do I calculate the value of the RF choke at the DC supply side? I hope this question is at least coherent... Tim ka8ddz Read their appnote on biasing mmic amps... http://www.minicircuits.com/appnote/an60010.pdf Remove "HeadFromButt", before replying by email. |
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#4
May 12th 04, 01:50 AM
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"Tim" wrote in message ...
I'm sure this is in the handbook, but darned if I can find it. I'm using a MAR-6 after a DDS and filtered output for a little gain into a passive mixer, the DDS will be used for 1-30 MHz or so, how do I calculate the value of the RF choke at the DC supply side? I hope this question is at least coherent... Leon's response is a quick, practical solution for you, but if you'd like more details go to the source. Minicircuits has applications info online. See for example http://www.minicircuits.com/appnote/an60010.pdf Cheers, Tom |
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#5
May 11th 04, 06:36 PM
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"Tim" wrote in message
... I'm sure this is in the handbook, but darned if I can find it. I'm using a MAR-6 after a DDS and filtered output for a little gain into a passive mixer, the DDS will be used for 1-30 MHz or so, how do I calculate the value of the RF choke at the DC supply side? I hope this question is at least coherent... It's optional, especially at such low frequencies. I wouldn't bother with it, just use the resistor mentioned in the data sheet. 73, Leon -- Leon Heller, G1HSM http://www.geocities.com/leon_heller |
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#6
May 11th 04, 10:53 PM
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On Tue, 11 May 2004 11:16:12 -0400, "Tim" wrote:
I'm sure this is in the handbook, but darned if I can find it. I'm using a MAR-6 after a DDS and filtered output for a little gain into a passive mixer, the DDS will be used for 1-30 MHz or so, how do I calculate the value of the RF choke at the DC supply side? I hope this question is at least coherent... Tim ka8ddz Read their appnote on biasing mmic amps... http://www.minicircuits.com/appnote/an60010.pdf Remove "HeadFromButt", before replying by email. |
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#7
May 12th 04, 01:50 AM
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"Tim" wrote in message ...
I'm sure this is in the handbook, but darned if I can find it. I'm using a MAR-6 after a DDS and filtered output for a little gain into a passive mixer, the DDS will be used for 1-30 MHz or so, how do I calculate the value of the RF choke at the DC supply side? I hope this question is at least coherent... Leon's response is a quick, practical solution for you, but if you'd like more details go to the source. Minicircuits has applications info online. See for example http://www.minicircuits.com/appnote/an60010.pdf Cheers, Tom |
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