TQP3M9018 bill of material for 50MHz

RF Solutions RF Low Noise Amplifiers
1

Hello,

I have a question regarding the bill of material for the TQP3M9018.
There is a reference design on page 3 of the datasheet, but which manufacturer is the L2@50MHz version?
The CoilCraft 0603CS series does not include a 470nH version.

Best regards,

2

Fitted on the eval boards are 68nH (CoilCraft 0603CS-68NXJL) for the RF version, and 330nH (CoilCraft 0603CS-R33XJL) for the IF version. If you wanted to use a larger value inductor like 470nH to extend the low frequency operation you could either use a different Coilcraft 0603 series (like 0603DC and 0603HL) or go to a larger size like 0805. The inductor needs to be rated for at least 100mA DC current. You may also be able to find a suitable part from other inductor suppliers. When selecting choke inductor value then you need to consider the upper and lower frequencies you need the amplifier to operate over.

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