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PDF EG-2121CA-L Data sheet ( Hoja de datos )
| Número de pieza | EG-2121CA-L | |
| Descripción | 2.5V operation LVDS SAW Oscillator | |
| Fabricantes | Epson Company | |
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2.5V operation 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, Infini Band, PCI-express, Rapid IO, Hyper Transport, Memory clock, CPU clock
♦ Absolute Maximum Ratings
Item
Supply Voltage
Storage temperature
Solder heat resistance
Symbol
VCC
Tstg
Tsol
Unit MIN. TYP.
V -0.5
°C -40
Max. 240°C x Max. 10s x 2 times
MAX.
+4.0
+100
Condition
VCC – GND
Stored as bare product
♦ Operating range
Item
Supply voltage
Operating temperature
Output load
Symbol
VCC
Topr
RL
Unit
V
°C
Ω
MIN.
2.375
0
-5
TYP.
2.5
100
MAX.
2.625
+70
+85
Condition
P version
R version
Differential resistor
♦ Frequency characteristics
Item
Symbol
Unit
MIN.
TYP.
(VCC=2.375 to 2.625,GND=0.0V,Load=100Ω)
MAX.
Condition
Output frequency Range
Frequency Stability
fosc
MHz
53.125
df/f0 ppm -100
-50
700
+100
+50
H version, *1
G version, *1
*1 This includes initial frequency tolerance, temperature, supply voltage variation and loading variation. Please refer to Part Numbering Guide (page3).
♦ Electrical characteristics
Item
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 VOD
Offset Voltage
Change to VOS
Duty
at outputs crossing point
Symbol
Tosc
IOP
VIH
VIL
IIH
IIL
VOD
dVOD
VOS
dVOS
tw/t
Unit
ms
mA
V
V
uA
uA
mV
mV
V
mV
%
Output Rise time
Output Fall time
Phase Jitter *2
Offset =12KHz to 20MHz
tTLH
tTHL
TPJ
Period Jitter *3
n=50000 samples
Accumulated Jitter *3
n=2 to 50000 cycles
tRJ
tp-p
tacc
*2 Measured by SSB phase noise test equipment.
*3 Measured by Time interval analyzer or oscilloscope.
ps
ps
UI
ps
ps
ps
ps
MIN.
0.7VCC
-100
247
1.125
48
45
40
TYP.
20
25
350
1.25
0.044x10-3
0.29
3
25
4
(VCC=2.375 to 2.625,GND=0.0V,Load=100Ω)
MAX.
Condition
10 t=0 at VCC=2.375V
30 fosc<=500MHz
35 fosc>500MHz
0.3VCC
1
-10
454
50
1.375
150
52
55
60
400
400
1
4
40
5
OE= VCC
OE=GND
VOD1 ,VOD2
dVOD=VOD1 - VOD2
VOS1 ,VOS2
dVOS=VOS1 - VOS2
V version: <=175MHz
53.125M to 350MHz
>350M
20-80% of VOD
80-20% of VOD
53.125 to 700MHz
@156.25MHz
σ of Random Jitter
Peak to Peak of jitter distribution
σ of Total jitter distribution
EPSON ELECTRONICS AMERICA, INC.
www.eea.epson.com
EG2121 LVDS Rev 1.4 35D
1 page | ||
| Páginas | Total 3 Páginas | |
| PDF Descargar | [ Datasheet EG-2121CA-L.PDF ] | |
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