EPSON_EG-2121 Epson Company, EPSON_EG-2121 Datasheet
EPSON_EG-2121
Manufacturer Part Number
EPSON_EG-2121
Description
2.5V operation LVDS SAW Oscillator
Manufacturer
Epson Company
Datasheet
1.EPSON_EG-2121.pdf
(3 pages)
2.5V operation LVDS SAW Oscillator
EG-2121CA-L
EPSON ELECTRONICS AMERICA, INC.
www.eea.epson.com
Features
Applications
Absolute Maximum Ratings
Operating range
Frequency characteristics
Electrical characteristics
*1 This includes initial frequency tolerance, temperature, supply voltage variation and loading variation. Please refer to Part Numbering Guide (page3).
*2 Measured by SSB phase noise test equipment.
*3 Measured by Time interval analyzer or oscilloscope.
Gigabit Ethernet, Fibre channel, Infini Band, PCI-express, Rapid IO, Hyper Transport, Memory clock, CPU clock
Generates high frequency clock from a high stability SAW (surface acoustic wave) resonator.
2.5V-LVDS output.
Very low jitter/low phase noise.
Small SMD in 7x5mm, Max1.4mm height, ceramic package.
Supply Voltage
Storage temperature
Solder heat resistance
Supply voltage
Operating temperature
Output load
Output frequency Range
Frequency Stability
Start up time
Current consumption
OE High level input voltage
OE Low level input voltage
OE High level input current
OE Low level input current
Differential output voltage
Change to V
Offset Voltage
Change to V
Duty
at outputs crossing point
Output Rise time
Output Fall time
Phase Jitter *2
Period Jitter *3
Accumulated Jitter *3
Offset =12KHz to 20MHz
n=50000 samples
n=2 to 50000 cycles
OD
OS
Item
Item
Item
Item
Symbol
Symbol
Symbol
Symbol
Tosc
dV
dV
Topr
Tstg
Tsol
df/f0
fosc
V
V
V
V
tw/t
t
t
V
T
RL
I
V
t
t
t
I
TLH
THL
I
OP
p-p
acc
RJ
IH
CC
CC
IL
OD
OS
PJ
IH
IL
OD
OS
Max. 240 C x Max. 10s x 2 times
Unit
mA
mV
mV
mV
MHz
ms
ppm
uA
uA
ps
ps
UI
ps
ps
ps
ps
Unit
Unit
Unit
%
V
V
V
V
V
C
C
0.7V
1.125
MIN.
53.125
-100
247
2.375
MIN.
48
45
40
MIN.
MIN.
-100
-0.5
-40
-50
-5
0
CC
0.044x10
TYP.
TYP.
TYP.
TYP.
1.25
0.29
350
2.5
100
20
25
25
3
4
-3
(V
0.3V
CC
MAX.
1.375
MAX.
2.625
MAX.
+100
MAX.
+100
+4.0
700
+50
400
400
+70
+85
454
150
-10
(V
10
30
35
50
52
55
60
40
=2.375 to 2.625,GND=0.0V,Load=100 )
1
1
4
5
CC
CC
=2.375 to 2.625,GND=0.0V,Load=100 )
H version, *1
G version, *1
P version
R version
Differential resistor
t=0 at V
fosc<=500MHz
fosc>500MHz
OE= V
OE=GND
V
dV
V
dV
V version: <=175MHz
53.125M to 350MHz
>350M
20-80% of V
80-20% of V
53.125 to 700MHz
@156.25MHz
Peak to Peak of jitter distribution
V
Stored as bare product
OD1
OS1
of Random Jitter
of Total jitter distribution
CC
OD
OS
– GND
,V
,V
= V
= V
CC
OS2
OD2
EG2121 LVDS Rev 1.4 35D
CC
OS1
OD1
=2.375V
- V
- V
OD
OD
Condition
Condition
Condition
Condition
OS2
OD2
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EPSON_EG-2121 Summary of contents
Page 1
LVDS SAW Oscillator EG-2121CA-L Features Generates high frequency clock from a high stability SAW (surface acoustic wave) resonator. 2.5V-LVDS output. Very low jitter/low phase noise. Small SMD in 7x5mm, Max1.4mm height, ceramic package. Applications Gigabit Ethernet, Fibre channel, ...
Page 2
Test circuit By-pass capacitor 10 F Power Supply Bypass capacitor 0.01 to 0.1 F Timing chart t TLH OUT 80% Outputs crossing 20% OUT Duty=tw/t x 100 External Dimensions ( Unit : mm ) EPSON ELECTRONICS AMERICA, ...
Page 3
Part Numbering Guide EG-2121CA - 156.2500M - Available combination : xHPA, xHPN, xHRA, xHRN, xGPN For xGPA and xGRN stability, please contact Epson. xGRA is not available (Duty +/-2%) version is available under ...