ZHCSDE3I February 2015 – January 2025 DP83867CR , DP83867IR
PRODUCTION DATA
請參考 PDF 數據表獲取器件具體的封裝圖。
A 25MHz, parallel, 18pF load crystal resonator can be used if a crystal source is desired. Table 7-35 shows a typical connection for a crystal resonator circuit. The load capacitor values vary with the crystal vendors; check with the vendor for the recommended loads.
Figure 8-5 Crystal Oscillator CircuitAs a starting point for evaluating an oscillator circuit, if the requirements for the crystal are not known, CL1 and CL2 can be set at 27pF, and R1 can be set at 0Ω.
Specification for 25MHz crystal are listed in Table 8-3.
| PARAMETER | TEST CONDITION | MIN | TYP | MAX | UNIT |
|---|---|---|---|---|---|
| Frequency | 25 | MHz | |||
| Frequency Tolerance | Operational Temperature | ±50 | ppm | ||
| Frequency Stability | 1 year aging | ±50 | ppm |