SNAA345 December   2020 LMK5C33216

 

  1.   Trademarks
  2. 1 Introduction
  3. 2 Wander Generation
    1. 2.1 Wander Generation MTIE Option 1, G.8262 EEC Option 1
    2. 2.2 Wander Generation TDEV G.8262 EEC Option 1
    3. 2.3 Wander Generation MTIE Stratum ITU-T G.8262 EEC Option 2
    4. 2.4 Wander Generation TDEV G.8262 EEC Option 2
  4. 3 Wander Transfer
    1. 3.1 Transfer Function of the PLL for Option 1 and Option 2
    2. 3.2 Wander Transfer TDEV G.8262 Option 2
  5. 4 Wander Tolerance
    1. 4.1 Wander Tolerance G.8262 Option 1
    2. 4.2 Wander Tolerance G.8262 Option 2
  6. 5 Jitter Tolerance
    1. 5.1 Jitter Tolerance G.8262 Option 1 and Option 2
  7. 6 Phase Transient Generation
    1. 6.1 Short-Term Phase Transient Response G.8262 Option 1
    2. 6.2 Short-Term Phase Transient Response G.8262 Option 2
    3. 6.3 Phase Transient Generation With Signal Interruptions G.8262 EEC Option 1
    4. 6.4 Phase Discontinuity G.8262 Option 1
    5. 6.5 Phase Discontinuity G.8262 Option 2
  8. 7 Holdover
    1. 7.1 Holdover G.8262 Option 1
    2. 7.2 Holdover G.8262 Option 2
  9. 8 Free-Run Accuracy
    1. 8.1 Free-Run Accuracy G.8262 Option 1 and Option 2
  10. 9 Pull-In and Hold-In
    1. 9.1 Pull-In Range G.8262 Option 1 and Option 2
  11. 10Conclusion
  12. 11References

2.1 Wander Generation MTIE Option 1, G.8262 EEC Option 1

While the DPLL is locked to an input clock that is wander-free, it will not generate wander that exceeds the green MTIE masks shown in Figure 2-2 and Figure 2-3. These masks can be seen in Figure 1 in the G.8262 specification. There is no noise modulation applied to the input for this test. The LMK5C33216 passed the Wander Generation MTIE Option 1, G.8262 EEC Option 1 requirement as shown in Figure 2-2 and Figure 2-3.

GUID-20201210-CA0I-WRXJ-53LN-SZP5CZLK0WG1-low.svg Figure 2-2 Wander Generation MTIE Option 1, G.8262 EEC Option 1 Results, Tested at Constant Room Temperature With DPLL Bandwidth of 10 Hz
GUID-20201210-CA0I-J4PS-6C4L-P9TWKR3PN5R1-low.svg Figure 2-3 Wander Generation MTIE Option 1, G.8262 EEC Option 1 Results, Tested at Temperature of 85°C With DPLL Bandwidth of 10 Hz