Ultra Low Jitter PLL Crystal Oscillator 3.2 x 2.5mm
2.5V/3.3V CMOS XO
JX321
3.2 x 2.5mm Ceramic SMD
Package:
(Scale: none; dimensions are in mm)
Product Features
• Very low phase jitter - 0.8ps RMS typical
• Thicker crystal for improved reliability
• Low supply current - 45mA max.
• Industrial Temperature Range
•
Pb-free & RoHS compliant
•
Fast lead time
Recommended Land Pattern:
CREATED USING CADSTD LITE FREEWARE FROM WWW.CADSTD.COM. NON-COMMERCIAL USE ONLY.
Product Description
The JX321 XO series is a high performance
CMOS crystal oscillator family with very
low jitter performance. It supports various
options including wider frequency range,
2.5V/3.3V voltage, and various stabilities.
It is designed to meet the clock source
specifications for communication systems,
and other high performance equipment.
*Note: pads 2 and 5 are
optional (shown as dotted lines).
XO's are designed to fit on industry
standard, 4 pad layouts.
Pin Functions:
Pin
Function
1
2
3
4
OE
Ground
Output
V
DD
Applications
• Networking systems
•
Servers and storage systems
•
Profession video equipments
• Test and measurement
• FPGA/ASIC clock generation
CREATED USING CADSTD LITE FREEWARE FROM WWW.CADSTD.COM. NON-COMMERCIAL USE ONLY.
*Extended high frequency power decoupling is recommended (see test circuit for minimum
recommendation). To ensure optimal performance, do not route RF traces beneath the
package.
Part Ordering Information:
WX 70
V
JX 321
A
B
C
I FFFF.FFFFFF
1 FFFF.FFFFFF
Stability
A = +/-20 ppm
B = +/-25 ppm
C = +/-50 ppm
D = +/-25 ppm
E = +/-50 ppm
Temp Range
-20/+70°C
-20/+70°C
-20/+70°C
-40/+85°C
-40/+85°C
Voltage:
1=+3.3V
2=+2.5V
Stability and Temp Range:
Frequency:
FFFF.FFFFFF
MHz, “4 digits/decimal/6 digits” format
SaRonix-eCera™ is a Pericom® Semiconductor company
•
US: +1-408-435-0800 TW: +886-3-4518888
•
www.pericom.com
10/25/12
1
12-0055
All specifications are subject to change without notice.
JX321
Rev A
2.5V/3.3V CMOS XO
JX321
Ultra Low Jitter PLL Crystal Oscillator 3.2 x 2.5mm
Electrical Performance
Parameter
Min.
Typ.
Max.
Units
Notes
Output Frequency
Supply Voltage
Supply Current, Output Enabled
Supply Current, Output Disabled only
Frequency Stability
Operating Temperature Range
Output Logic 0, V
OL
Output Logic 1, V
OH
Output Load
Duty Cycle
Rise and Fall Time
Jitter, Phase RMS (1-σ)
Jitter, pk-pk
Jitter, pk-pk
V
DD
= 3.3V
V
DD
= 2.5V
10
3.135
2.375
3.3
2.5
212.5
3.465
2.625
45
20
±50
MHz
V
mA
mA
ppm
°C
V
V
pF
%
ps
ps
Measured 50% V
DD
Measured 20/80% of waveform
12kHz to 20 MHz frequency band
100,000 random periods
See ordering options
See ordering options
See ordering options
-40
V
DD
-0.4
+85
0.4
15
45
800
0.8
20
40
55
1600
40
50
ps
Notes:
1. Stability includes all combinations of operating temperature, load changes, rated input (supply) voltage changes, initial calibration tolerance (25°C),
aging (1 year at 25°C average effective ambient temperature), shock and vibration.
2. For specifications othere than those listed, please contact sales.
Output Enable / Disable Function
Parameter
Min.
Typ.
Max.
Units
Notes
Input Voltage (pin 1), Output Enable
Input Voltage (pin 1), Output Disable (low power standby)
Internal Pullup Resistance
Output Disable Delay
Output Enable Delay
Start up Time
0.7 V
DD
0.3 V
DD
51
200
200
10
V
V
kΩ
ns
ns
ms
or open
Output is Hi-Z
Absolute Maximum Ratings
Parameter
Min.
Typ.
Max.
Units
Notes
Storage Temperature
-55
+125
°C
For the latest product information visit:
http://www.pericom.com/products/timing/oscillators/
For test circuit go to:
http://www.pericom.com/pdf/sre/tc_cmos2.pdf
For soldering reflow profile and reliability test ratings go to:
http://www.pericom.com/pdf/sre/reflow.pdf
For tape and reel information go to:
http://www.pericom.com/pdf/sre/tr_3225_xo.pdf
SaRonix-eCera™ is a Pericom® Semiconductor company
•
US: +1-408-435-0800 TW: +886-3-4518888
•
www.pericom.com
10/25/12
2
12-0055
All specifications are subject to change without notice.
JX321
Rev A
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