EG-2021CA
2.5V LVCMOS Output Oscillator
♦
Features
•
Generates high frequency clock from a high stability SAW (Surface Acoustic Wave) resonator.
•
2.5V-CMOS output.
•
Very low jitter/low phase noise.
•
Small SMD in 7x5mm, Max1.4mm height, ceramic package.
♦
Applications
•
Ethernet, Fibre channel, InfiniBand, PCI-Express, RapidIO, Hypertransport, SONET etc.
♦
Absolute Maximum Ratings
Item
Supply Voltage
Storage temperature
Solder heat resistance
♦
Operating range
Item
Supply voltage
Operating temperature
Output load
♦
Frequency characteristics
Item
Output frequency Range
Frequency Stability
Preliminary
Symbol
V
CC
Tstg
Tsol
Unit
MIN.
TYP.
MAX.
+4.0
+100
Condition
V
DD
– GND
Stored as bare product.
V
-0.5
°C
-40
Max. 240°C x Max. 10s x 2 times
Symbol
V
DD
Topr
CL
Unit
V
°C
pF
MIN.
2.375
0
-5
TYP.
2.5
MAX.
2.625
+70
+85
15
P version
R version
Condition
Symbol
fosc
df/f0
Unit
MHz
ppm
MIN.
62.5
TYP.
(V
DD
=2.375 to 2.625,GND=0.0V,Load=Max,)
MAX.
Condition
170
+/-100
H stability, *1
+/-50
G stability, *1
*1 This includes initial frequency tolerance, temperature, supply voltage variation and loading variation.
♦
Electrical characteristics
Item
Start up time
Current consumption
(V
DD
=2.375 to 2.625,GND=0.0V,Load=Max)
MAX.
Condition
10
TBD
TBD
0.6
TBD
TBD
55
t=0 at V
DD
=2.375V
CL=15pF
No Load
OE=GND
20-80% of (VOH-VOL)
80-20% of (VOH-VOL)
at 50% V
DD
IOH=-8mA
IOL=8mA
OE Terminal
OE Terminal
RMS, @62.5 to 170MHz
RMS, @125MHz
σ
of Random Jitter
Peak to Peak of jitter distribution
σ
of Total jitter distribution
Symbol
Tosc
I
OP
Unit
ms
mA
mA
mA
ns
ns
MIN.
TYP.
20
15
Output disable current
I
OE
Rise time
t
TLH
1.0
Fall time
t
THL
1.0
Duty
tw/t
45
High level output voltage
V
OH
V
V
DD
-0.4
Low level output voltage
V
OL
V
0.4
High level input voltage
V
IH
V
0.7V
DD
Low level input voltage
V
IL
V
0.3V
DD
-3
Phase Jitter *2
t
PJ
UI
0.027x10
12KHz to 20MHz offset
ps
0.21
Period Jitter *3
t
RJ
ps
3
4
n=50000 samples
tp-p
ps
25
40
Accumulated Jitter *3
tacc
ps
4
5
n=2 to 50000 cycles
*2 Measured by SSB phase noise test equipment. *3 Measured by Time interval analyzer or oscilloscope.
EPSON ELECTRONICS AMERICA, INC.
www.eea.epson.com
EG2021 Rev.0.6 35I
SEIKO [ SEIKO EPSON CORPORATION ]
