SM843001-106 Datasheet, PDF (4/7 Pages) Micrel Semiconductor – ClockWorks™ Fibre Channel, 106.25MHz, Ultra-Low Jitter LVPECL Clock Frequency Synthesizer

Micrel, Inc.
SM843001-106
AC Electrical Characteristics⁽⁵⁾
V_DD = V_DDA = 2.5V ±5% or 3.3V ±5%, T_A = –40°C to +85°C, unless noted.
Symbol Parameter
Condition
Min. Typ. Max. Units
F_OUT
Output Frequency
26.5625MHz Crystal
106.25
MHz
t_JITTER
RMS Phase Jitter (Output =106.25MHz) Integration Range: 637kHz to 10MHz
170
fs
t_R / t_F
Output rise/fall time
20% to 80%
80
150
350
ps
O_DC
Output Duty Cycle
48
50
52
%
Note:
5. The circuit is designed to meet the AC specifications shown in the above table(s) after thermal equilibrium has been established with a transverse
airflow greater than 500 lfpm.
Crystal Characteristics
Parameter
Mode of Oscillation
Frequency
Equivalent Series Resistance (ESR)
Shunt Capacitor, C0
Correlation Drive Level
Condition
12pF Load
Min.
Typ.
Max.
Fundamental, Parallel Resonant
26.5625
50
3
7
100
300
Units
MHz
Ω
pF
uW
October 2010
4
M9999-100610-A
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