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SM802111UMG Fiches technique(PDF) 4 Page - Micrel Semiconductor

No de pièce SM802111UMG
Description  ClockWork GbE Dual 125MHz Ultra-Low Jitter, LVPECL Frequency Synthesizer
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Fabricant  MICREL [Micrel Semiconductor]
Site Internet  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

SM802111UMG Fiches technique(HTML) 4 Page - Micrel Semiconductor

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Micrel, Inc.
SM802111
April 2011
4
M9999-041111-A
hbwhelp@micrel.com or (408) 955-1690
Ref_IN DC Electrical Characteristics
(4)
VDD = 3.3V ±5% or 2.5V ±5%, TA = –40°C to +85°C.
Symbol
Parameter
Condition
Min.
Typ.
Max.
Units
VIH
Input High Voltage
1.1
VDD + 0.3
V
VIL
Input Low Voltage
−0.3
0.6
V
IIN
Input Current
VDD = 3.465V, VIN = 0V to VDD
−5
5
μA
AC Electrical Characteristics
(4, 5)
VDD = VDDO = 3.3V ±5% or 2.5V ±5%
VDD = 3.3V ±5%, VDDO = 3.3V ±5% or 2.5V ±5%
TA = −40°C to +85°C; RL = 50Ω to VDDO − 2V
Symbol
Parameter
Condition
Min.
Typ.
Max.
Units
FOUT
Output Frequency
125
MHz
FREF
Reference Input Frequency
15
MHz
TR/TF
LVPECL Output Rise/Fall Time
20% – 80%
80
175
350
ps
ODC
Output Duty Cycle
48
50
52
%
TSKEW
Output-to-Output Skew
Note 6
45
ps
TLOCK
PLL Lock Time
20
ms
Tjit(∅)
RMS Phase Jitter
(7)
Output = 125MHz Integration
Range (1.875MHz – 20MHz)
85
fs
Spurious Noise Components
5MHz
-73
dBc
Notes:
5.
All phase-noise measurements were taken with an Agilent 5052B phase-noise system.
6.
Defined as skew between outputs at the same supply voltage and with equal load conditions; Measured at the output differential crossing points.
7.
Ref_IN driven with a low-noise source ClockWorks SM802001 programmed for a 15MHz CMOS output. Phase noise will track the input phase
noise up to about 1MHz offset frequency.


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