SM8721AB Datasheet, PDF (7/8 Pages) Nippon Precision Circuits Inc – 3-PLL Multi-Output Clock Generator

SM8721AB
Output Clock Frequency
The SM8721AB generates 3 output clocks with frequency 14.318182/17.734450MHz (REF_CLK),
71.877274/90.314686/96.016044/114.54546MHz (CLK1), and 48.008022/96.016044MHz (CLK2), derived
from the master clock.
A list of the supported clock frequency and control settings is shown in table 1.
Table 1. Output clock frequency
14.318182MHz master clock frequency: XTAL_SEL = LOW
28.636363MHz master clock frequency: XTAL_SEL = HIGH
FS1
(Pin 10)
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
FS2
(Pin 9)
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
FS3
(pin 8)
HIGH
LOW
HIGH
LOW
CLK2ON
(pin 12)
HIGH
LOW
Output clock frequency [MHz]
REF_CLK
(Pin 19)
CLK1
(Pin 11)
CLK2
(Pin 16)
14.318182
17.734450
96.016044
14.318182
17.734450
90.314686
48.008022
14.318182
17.734450
71.877274
14.318182
17.734450
114.54546
96.016044
14.318182
17.734450
96.016044
14.318182
17.734450
14.318182
17.734450
90.314686
71.877274
Fixed LOW
14.318182
17.734450
114.54546
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