SaRonix-eCera™ is a Pericom® Semiconductor company • US: +1-408-435-0800 TW: +886-3-4518888 • www.pericom.com
All specifications are subject to change without notice. SXGPON155 Rev C 06/18/10
3.3V CMOS Low-Jitter 155.52 MHz GPON XO SXGPON155
Application Specic Crystal Oscillator 7.0 x 5.0mm
TM
Product Features
• Very low phase jitter - 0.5ps RMS
• Thicker crystal for improved reliability
• Low output current - 20mA max.
• Industrial Temperature Range
•Pb-free & RoHS compliant
Product Description
This is an enhanced high-frequency 3.3V,
155.52MHz crystal clock oscillator with
superb jitter and low operating current for
Gigabit Passive Optical Network (GPON)
applications.
The output clock signal, generated internally
with a patented oscillator design, is
compatible with LVCMOS logic levels.
Applications
• GPON Optical Network Unit (ONU)
• GPON Optical Line Termination (OLT)
• GPON Gateway
Package:
Pin Functions:
Pin Function
1 OE Function
2 Ground
3 Clock Output
4 VDD
Recommended Land Pattern:
Part Ordering Information:
SXGPON155
*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.
7.0 x 5.0mm Ceramic SMD ASSP XO™ for Networking
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SaRonix-eCera™ is a Pericom® Semiconductor company • US: +1-408-435-0800 TW: +886-3-4518888 • www.pericom.com
All specifications are subject to change without notice. SXGPON155 Rev C 06/18/10
3.3V CMOS Low-Jitter 155.52 MHz GPON XO
Application Specic Crystal Oscillator 7.0 x 5.0mm
SXGPON155
TM
Output Enable / Disable Function
Parameter Min. Typ. Max. Units Notes
Input Voltage (pin 1), Output Enable 2.2 V or open
Input Voltage (pin 1), Output Disable (low power standby) 0.8 V Output is Hi-Z
Internal Pullup Resistance 50 kΩ
Output Disable Delay 100 ns
Output Enable Delay 1 ms
Electrical Performance
Parameter Min. Typ. Max. Units Notes
Output Frequency 155.52 MHz
Supply Voltage 2.97 3.3 3.63 V
Supply Current, Output Enabled 20 mA
Supply Current, Output Disabled 10 mA Output Hi-Z
Frequency Stability ±50 ppm See Note 1 below
Operating Temperature Range -40 +85 °C Industrial
Output Logic 0, VOL 10% VDD V
Output Logic 1, VOH 90% VDD V
Output Load 15 pF
Duty Cycle 45 55 % Measured 50% VDD
Rise and Fall Time 2 ns Measured 20/80% of waveform
Jitter, Phase RMS (1-σ) 0.25 0.5 ps 12kHz to 20 MHz frequency band
Jitter, pk-pk 30 40 ps 100.000 random periods
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 specications othere than those listed, please contact sales.
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/SXGPON155/
For test circuit go to: http://www.pericom.com/pdf/sre/tc_hcmos.pdf
For soldering reow prole and reliability test ratings go to: http://www.pericom.com/pdf/sre/reflow.pdf
For typical phase noise go to: http://www.pericom.com/pdf/sre/pn_SXGPON155.pdf
For tape and reel information go to: http://www.pericom.com/pdf/sre/tr_7050_xo.pdf
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