ZHCSIG4A July 2018 – June 2019 DLPC3434
The DLPC3434 requires an external reference clock to feed its internal PLL. A crystal or oscillator can supply this reference. For flexibility, the DLPC3434 accepts either of two reference clock frequencies (see Table 10), but both must have a maximum frequency variation of ±200 ppm (including aging, temperature, and trim component variation). When a crystal is used, several discrete components are also required as shown in Figure 24.