SNAA416A April   2025  – June 2025 LMK3C0105-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Test Setup
    1. 2.1 Board Variation Summary Table
    2. 2.2 Schematics
    3. 2.3 Layouts
    4. 2.4 Stack-Up
  6. 3CISPR-25
    1. 3.1 CISPR-25 Summary
    2. 3.2 CISPR-25 Results
      1. 3.2.1 Monopole
      2. 3.2.2 Bi-Conical
      3. 3.2.3 Log-Periodic
      4. 3.2.4 Horn
  7. 4CISPR-32
    1. 4.1 CISPR-32 Summary
    2. 4.2 CISPR-32 Results
  8. 5Summary
  9. 6References
  10. 7Revision History

3.2.4 Horn

Table 3-9 Board Variation Summary Table
Board Variant Device Trace Routing Shielding Vias Clock Layer Trace Length
1 LMK3C0105-Q1 Immediate Termination No L1 66mil
2 LMK3C0105-Q1 Immediate Branch Out Yes (400mil spaced array) L6 9 - 12in
3 LMK3C0105-Q1 Immediate Branch Out No L6 9 - 12in
4 Competitor Oscillator Immediate Termination No L1 66mil

Variant 2 LMK3C0105-Q1 3.3V Spectrum Overview - Horn

Figure 3-20 Variant 2 LMK3C0105-Q1 3.3V Spectrum Overview - Horn

Variant 2 LMK3C0105-Q1 3.3V with -0.5% SSC Spectrum Overview - Horn

Figure 3-21 Variant 2 LMK3C0105-Q1 3.3V with -0.5% SSC Spectrum Overview - Horn

Variant 3 LMK3C0105-Q1 3.3V Spectrum Overview - Horn

Figure 3-22 Variant 3 LMK3C0105-Q1 3.3V Spectrum Overview - Horn

Variant 3 LMK3C0105-Q1 3.3V with -0.5% Spectrum Overview - Horn

Figure 3-23 Variant 3 LMK3C0105-Q1 3.3V with -0.5% Spectrum Overview - Horn

Variant 4 Competitor Oscillator 3.3V Spectrum Overview - Horn

Note: The 1.5GHz to 1.6GHz band did not have the proper measurement settings in the above capture. See following for corrected measurement of this band.
Figure 3-24 Variant 4 Competitor Oscillator 3.3V Spectrum Overview - Horn

Variant 4 Competitor Oscillator 3.3V 1.5GHz to 1.6GHz Band Spectrum Overview - Horn

Figure 3-25 Variant 4 Competitor Oscillator 3.3V 1.5GHz to 1.6GHz Band Spectrum Overview - Horn

Variant 3 LMK3C0105-Q1 1.8V with -0.5% SSC Spectrum Overview - Horn

Figure 3-26 Variant 3 LMK3C0105-Q1 1.8V with -0.5% SSC Spectrum Overview - Horn

Variant 4 Competitor Oscillator 1.8V Spectrum Overview - Horn

Figure 3-27 Variant 4 Competitor Oscillator 1.8V Spectrum Overview - Horn