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The Designer's Guide Community Forum › Design › RF Design › linearity and DC_lo
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linearity and DC_lo (Read 1788 times)
microwaver118
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linearity and DC_lo
Dec 24th, 2009, 11:41pm  
Hi guys:
When I design a current driven passive mixer, a problem came to me. because passive switch, the DC bias of lo has a strong relationship with linarity,an optimum point can get at one state but it changes to another with Temp& Process varys.
HOW TO SET THE DC_lo WHEN WANT GOOD LINEARITY?
any suggestion would be welcome! thankyou!
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nxing
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Re: linearity and DC_lo
Reply #1 - Feb 17th, 2010, 3:38pm  
why do you think that the DC bias will affect the linearity of a passive mixer? the switches will go through a full swing. So, it should not matter for where do you bias it
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