SM8721AB Datasheet, PDF (6/8 Pages) Nippon Precision Circuits Inc – 3-PLL Multi-Output Clock Generator

SM8721AB
FUNCTIONAL DESCRIPTION
14.318182/28.636363MHz Master Clock
The 14.318182/28.636363MHz master clock is generated by the crystal oscillator formed by connecting a
crystal (14.318182/28.636363MHz fundamental frequency) between pins XTI (pin 4) and XTO (pin 5), as
shown in figure 3.
14.318182/
28.636363MHz
C1
XTI (Pin 4)
Oscillator
1/2
C2
XTO (Pin 5)
C1, C2 = 0 to 33pF
PLL
REF_CLK (Pin 19)
Figure 3. Crystal oscillator connection
SEIKO NPC CORPORATION —6