ZHCSIS3D September 2018 – June 2025 DP83869HM
PRODUCTION DATA
If an external clock oscillator is used, then the oscillator must be directly connected to XI. XO must be left floating.
The CMOS 25MHz oscillator specifications are listed in Table 8-2 . Additionally, the maximum oscillator phase noise tolerated by the PHY is shown in Figure 8-3.
| PARAMETER | TEST CONDITION | MIN | TYP | MAX | UNIT |
|---|---|---|---|---|---|
| Frequency | 25 | MHz | |||
| Frequency Tolerance | Operational Temperature, 1 Year Aging | ±100 | ppm | ||
| Rise / Fall Time | 20% - 80% | 5 | ns | ||
| Symmetry | Duty Cycle | 40% | 60% | ||
|
Jitter RMS |
Integration Band: 12kHz to 5MHz |
11 |
ps |
Figure 8-3 25MHz Oscillator Phase Noise