843022I-02 Datasheet, PDF (7/17 Pages) Integrated Device Technology – FemtoClock® Crystal-to-3.3V, 2.5V LVPECL Clock Generator

APPLICATION INFORMATION
843022I-02 DATA SHEET
CRYSTAL INPUT INTERFACE
The 843022I-02 has been characterized with 18pF parallel
resonant crystals. The capacitor values, C1 and C2, shown in
Figure 1 below were determined using a 25MHz, 18pF parallel
resonant crystal and were chosen to minimize the ppm error.
The optimum C1 and C2 values can be slightly adjusted for
different board layouts.
FIGURE 1. CRYSTAL INPUt INTERFACE
REVISION A 11/4/15
7
FEMTOCLOCKS™ CRYSTAL-TO-3.3V, 2.5V
LVPECL CLOCK GENERATOR