Beams Document 4815-v1

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1.3 GHz 8-Channel Receiver for NML ASTA LLRF

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Edward W. Cullerton
Updated by:
Edward W. Cullerton
Document Created:
28 Apr 2015, 09:33
Contents Revised:
28 Apr 2015, 09:33
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28 Apr 2015, 09:33
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This paper describes the 1.3 GHz receiver used at Fermilab’s NML accelerator facility. The unit has 8 channels of down conversion and a single transmitter. The down-converted IF output frequency is 13 MHz, and the LO frequency is 1.313 GHz. The unit has an RF to IF conversion gain of- 4 dB, with a 1 dB compression point at the RF input of +12.5 dBm. The channel to channel isolation is better than 70 dB for any adjacent channels and better than 80 dB for all other channels. The transmitter uses modulated I and Q inputs at 13 MHz to generate a modulated RF output at the 1.3 GHz. The transmitter is capable of an RF output level of +15 dBm, and there is a TTL RF switch on the output of the transmitter. The power requirements of the unit is +6V@1.7 A and -6V@100 mA. The unit is housed in a 1U rackmount chassis.
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