Optimum power for a mini circuits SRA-6 mixer?
时间：04-04
整理：3721RD
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Hi,
I am using a 6.7 to 9dbm LO to drive a mini circuits SRA-6 mixer
1. Is the LO power I am using ok or will it induce intermodulation? (nominal value is 7dbm)
2. What is the max allowed RF input power without introducing intermodulation?
3. What is the max allowed IF input power (if mixer used backwards) without introducing intermodulation?
I cannot find these things in the datasheet. Anyone having experience with +7dbm mini circuits mixers might be able to answer the question.
I am using a 6.7 to 9dbm LO to drive a mini circuits SRA-6 mixer
1. Is the LO power I am using ok or will it induce intermodulation? (nominal value is 7dbm)
2. What is the max allowed RF input power without introducing intermodulation?
3. What is the max allowed IF input power (if mixer used backwards) without introducing intermodulation?
I cannot find these things in the datasheet. Anyone having experience with +7dbm mini circuits mixers might be able to answer the question.
all mixers have Intermodulation. The LO power CAN change the level of these spurious outputs, it is best to actually measure the outputs on a spectrum analyzer and see what the effect is. Also, the impedance matching at the RF and LO ports can effect spurious output levels too-If you can afford the loss, a 3 dB pad at the LO or RF port can be very useful.