Other Parts Discussed in Thread: LMX2572
Hello,
When testing the LMX2572EVM, the integer boundary spurts vary greatly at different frequencies. The table below show the spurious suppression of deviation is 1M at fPD=100Mhz.
When the baseband output is 3200Mhz~3700Mhz, the spur suppression is poor, and the rest 3800M~6400M can suppress 65dBc。 Why?
| frequency | 3201 | 3301 | 3401 | 3501 | 3601 | 3701 | 3801 | 3901 | 4001 |
| spur | -55dBc | -48dBc | -53dBc | -50dBc | -55dBc | -46dBc | -69dBc | -65dBc | -70dBc |
Best regards
Kailyn
