LMX2594: Recommended Configuration

Hello,

Could you provide me with the best LMX2594 settings and register values to satisfy the target performance for the given conditions?

Target performance

• Phase noise at RFoutA (6210 MHz)
  • -95 dBc/Hz or less at offset frequency of 10 kHz
  • -107 dBc/Hz or less at offset frequency of 100 kHz
  • -120 dBc/Hz or less at offset frequency of 1 MHz
  • -145 dBc/Hz or less at offset frequency of 10 MHz

Conditions

• OSCin frequency: around 250 MHz (adjustable)
  • Phase noise characteristics of the input signal
    
• f_PD: Any frequency is acceptable
• RFoutA frequency: 6210 MHz (fixed)
• Phase margin: around 60° or more (target)
• Loop bandwidth: around 200 to 300 kHz (target)
• Loop filter: 2nd order
• I_CPout: 15 mA

Best regards,
Shinichi Yokota