pt7a4408 Pericom Technology Inc, pt7a4408 Datasheet - Page 25

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pt7a4408

Manufacturer Part Number
pt7a4408
Description
T1/e1/oc3 System Synchronizer
Manufacturer
Pericom Technology Inc
Datasheet
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Test Conditions:
1.
2.
3. Normal State selected.
4.
5. Free-Run State selected.
6. 8kHz frequency source selected.
7. 1.544MHz frequency source selected.
8. 2.048MHz frequency source selected.
9. Master clock input OSCi at 20MHz ±0ppm.
10. Master clock input OSCi at 20MHz ±32ppm.
11. Master clock input OSCi at 20MHz ±100ppm.
12. Selected reference input at ±0ppm.
13. Selected reference input at ±32ppm.
14. Selected reference input at ±100ppm.
15. For Free-Run State of ±0ppm.
16. For Free-Run State of ±32ppm.
17. For Free-Run State of ±100ppm.
18. For capture range of ±230ppm.
19. For capture range of ±198ppm.
20. For capture range of ±130ppm.
21. 25pF capacitive load.
PT0106(09/02)
Notes:
1. Voltages are with respect to ground (GND) unless otherwise stated.
2. Supply voltage and operation temperature are as per Recommended Operating Conditions.
3. Timing parameters are as per AC Electrical Characteristics - Voltage Levels for Timing Parameter Measurement.
25
22. OSCi Master Clock Jitter is less than 2ns p-p, or 0.04UI
23. Jitter on reference input is less than 7ns p-p.
24. Applied jitter is sinusoidal.
25. Minimum applied input jitter magnitude to regain syn-
26. Loss of synchronization is obtained at slightly higher in-
27. Within 10ms of the state, reference or input change.
28. 1UIpp = 125 s for 8kHz signals.
29. 1UIpp = 648ns for 1.544MHz signals.
30. 1UIpp = 488ns for 2.048MHz signals.
31. 1UIpp = 324ns for 3.088MHz signals.
32. 1UIpp = 244ns for 4.096MHz signals.
33. 1UIpp = 122ns for 8.192MHz signals.
34. 1UIpp = 61ns for 16.384MHz signals.
35. No filter.
36. 40Hz to 100kHz bandpass filter.
37. With respect to reference input signal frequency.
38. After a RST
39. Master clock duty cycle 40% to 60%.
40. In Normal State and phase locked.
41. 1UIpp = 162ns for 6.312MHz signals.
42. 1UIpp = 51ns for 19.44MHz signals.
p-p where 1UI p-p = 1/20MHz.
chronization.
put jitter amplitudes.
T1/E1/OC3 System Synchronizer
PT7A4408/4408L
Data Sheet
Ver:0

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