November 2006
rev 1.3
ASM3P2853A
AC Electrical Characteristics
Parameter
Symbol
Conditions/ Description
Measured from 20% to 80% of the
signal level
Min
Typ
Max
Unit
Rise Time*
tr
-
2
-
nS
Measured from 80% to 20% of the
signal level
Fall Time*
tf
-
1.5
-
nS
Jitter
(Cycle to Cycle)
Jitter
tjc
tp
-
-
250
175
-
-
pS
pS
(Period)
Ratio of pulse width (as measured from
rising edge to next falling edge at
VDD/2) to one clock period
Clock Duty Cycle
td
45
50
55
%
* CL = 15 pF, Input clock frequency = 25MHz
Typical Application Schematic using ASM3P2853A Device
1
XIN
8
7
Modulated 50MHz output
50MHz
USB Clock
SSONB
25MHz
27pF
fundamental
Crystal
2
3
XOUT
Un-modulated 48MHz output
27pF
6
5
VDD
VSS
4
PWDNB
+2.5V
0.1uF
ASM3P2853A
Peak EMI Reducing Solution
5 of 8
Notice: The information in this document is subject to change without notice.
PULSECORE [ PulseCore Semiconductor ]
