Crystal oscillator
Epson Toyocom
Product Number (please contact us)
EG-2121CA:X1M000101xxxx00
EG-2102CA:X1M000091xxxx00
CRYSTAL OSCILLATOR
LOW-JITTER SAW OSCILLATOR
EG - 2121
/
2102CA
series
•Frequency
range
•Supply
voltage
:
100 MHz to 350 MHz
:
2.5 V (EG-2121CA)
:
3.3 V (EG-2102CA)
•Output
:
HCSL
•Function
:
Output enable(OE)
•External
dimensions
:
7.0 × 5.0 × 1.4 t (mm)
TM
•Application
:
PCI Express 2.0, FB-DIMM
•Very
low jitter and low phase noise by SAW unit.
Actual size
EG-2121CA
EG-2102CA
Specifications (characteristics)
Item
Output frequency range
Supply voltage
Storage
Temperature temperature
range
Operating
temperature
Frequency tolerance
*1
Current consumption
Disable current
Symmetry
High output voltage
Low output Voltage
Output load condition
Output enable input voltage
Output disable input voltage
Rise time / Fall time
Start-up time
Symbol
EG-2121CA
HCSL
100 MHz to 350 MHz
2.5 V
±0.125
V
-40
°C
to +125
°C
P:0
°C
to +70
°C
,R:-5
°C
to +85
°C
,S:-20
°C
to +70
°C
G:
±
50
×
10
-6
,H:
±100 ×
10
-6
80 mA Max.
20 mA Max.
45 % to 55 %
0.75 V Typ.
-0.3 V Typ.
50
Ω
70 % V
CC
Min.
30 % V
CC
Max.
500 ps Max.
10 ms Max.
0.2 ps Typ.
3 ps Typ.
3 ps Typ.
25 ps Typ.
4 ps Typ.
1 ps Max.
-6
EG-2102CA
Remarks
Please contact us for inquiries regarding
available frequencies.
f
0
V
CC
T_stg
3.3 V
±0.3
V
Store as bare product after unpacking
T_use
f_tol
I
CC
I_dis
SYM
V
OH
V
OL
L_HCSL
V
IH
V
IL
85 mA Max.
35 mA Max
OE=V
CC
,L_HCSL=50
Ω
OE=GND
at outputs crossing point
DC characteristics
Terminated to GND
OE terminal
OE terminal
Between 0.175 V and 0.525 V of output
Time at minimum supply voltage to be 0 s
Deterministic Jitter
Random Jitter
σ
(RMS of total distribution)
Peak to Peak
Accumulated Jitter(σ) n=2 to 50000 cycles
Offset frequency: 12 kHz to 20 MHz
t
r
/
t
f
t_str
t
DJ
t
RJ
Jitter
*2
t
RMS
t
p-p
t
acc
Phase Jitter
t
PJ
±
10
×
10 / year Max.
Frequency aging
f_aging
+25
°C,First
year,V
CC
=2.5 V,3.3 V
*1
This includes initial frequency tolerance, temperature variation, supply voltage variation, and reflow drift(except aging).
*2
Based on SIA-3100C signal integrity analyzer made from WAVECREST.
External dimensions
#6
#5
#4
#4
(Unit:mm)
#5
#6
Footprint (Recommended)
1.6
(Unit:mm)
#1
#2
#3
7.0
±0.2
#3
2.54
#2
#1
5.08
1.4 Max.
Note.
OE pin = HIGH : Specified frequency output.
OE pin = LOW : Output is high impedance, oscillation stops.
#3 is connected to the cover.
5.08
Pin map
Pin
1
2
3
4
5
6
3.9
E EG-2121
250.000H
GPA 282A
5.0
±0.2
1.1
1.4
2.6
Connection
2.54
5.08
To maintain stable operation, provide by-pass capacitor
with more than 0.1
μF
at a location as near as possible to
the power source terminal of the crystal products
(between V
CC
- GND).
OE
N.C.
GND
OUT
OUT
V
CC
http://www.epsontoyocom.co.jp
1.5
Analog electronics
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