sm843251-156 Micrel Semiconductor, sm843251-156 Datasheet - Page 4

• Manufacturer Part Number: sm843251-156
• Description: Clockworks 10-gigabit Ethernet, 156.25mhz, Ultra-low Jitter Lvpecl Clock Frequency Synthesizer
• Manufacturer: Micrel Semiconductor

Micrel, Inc.
AC Electrical Characteristics
V
Note:
5.
Crystal Characteristics
October 2010
Symbol
F
t
t
O
Parameter
Mode of Oscillation
Frequency
Equivalent Series Resistance (ESR)
Shunt Capacitor, C0
Correlation Drive Level
DD
JITTER
R
OUT
DC
/ t
= V
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.
F
DDA
= 2.5V ±5% or 3.3V ±5%
Parameter
Output Frequency
RMS Phase Jitter (Output = 156.25 MHz)
Output Rise/Fall Time
Output Duty Cycle
, T
A
= –40°C to +85°C, unless noted.
(5)
12pF Load
Condition
20% to 80%
Condition
25MHz Crystal
Integration Range: 1.875MHz to 20MHz
4
Min.
Fundamental, Parallel Resonant
[e-mail]
Typ.
100
25
3
Min.
80
48
Max.
300
50
7
156.25
Typ.
110
175
or [phone]
50
M9999-100110-A
SM843251-156
Max.
350
52
Units
MHz
uW
pF
Ω
Units
MHz
ps
fs
%