843201-375 Datasheet, PDF (10/19 Pages) Integrated Device Technology – FemtoClock® Crystal-to-LVPECL 375MHz Frequency Margining Synthesizer

843201-375 DATA SHEET
APPLICATION INFORMATION
CRYSTAL INPUT INTERFACE
The 843201-375 has been characterized with 18pF
parallel resonant crystals. The capacitor values shown in
Figure 1 below were determined using a 25MHz, 18pF parallel
resonant crystal and were chosen to minimize the ppm error.
FIGURE 1. CRYSTAL INPUt INTERFACE
RECOMMENDATIONS FOR UNUSED INPUT PINS
INPUTS:
LVCMOS CONTROL PINS:
All control pins have internal pull-ups or pull-downs; additional
resistance is not required but can be added for additional protection.
A 1kΩ resistor can be used.
FEMTOCLOCK® CRYSTAL-TO-LVPECL
10
375MHZ, FREQUENCY MARGINING SYNTHESIZER
REVISION A 8/21/15