Slide 1 Slide 2 Slide 3 Slide 4 Slide 5 Slide 6 Slide 7 Slide 8 Slide 9 Slide 10 Slide 11 Slide 12 Slide 13 Slide 14 Slide 15 Slide 16 Slide 17 Slide 18 Slide 19 Slide 20 Slide 21 Slide 22 Slide 23 Slide 24 Slide 25 Slide 26 Slide 27 Slide 28 Slide 29 Slide 30 Slide 31 Slide 32 Slide 33 Slide 34 Slide 35 Slide 36 Slide 37 Slide 38 Slide 39 Slide 40 Slide 41 Slide 42 Slide 43 Slide 44 Slide 45 Slide 46 Product List
MAX2870-Slide20

A practical example is given to further illustrate reciprocal mixing and emphasize the importance of low spurious and low phase noise performance. Here a desired signal resides at 915MHz carrier frequency and the unwanted blocker is at 910MHz. The desired IF is 240MHz so the LO is set at 675MHz. LO spurs or phase noise at 670MHz will mix with the unwanted blocker and down convert to the same 240MHz fixed IF, potentially swamping the desired signal and elevating the noise floor.

PTM Published on: 2014-02-13