TM Application Specific Crystal Oscillator 7.0 x 5.0mm FNEPON125 3.3V CMOS Low-Jitter 125MHz EPON XO ASSP XO™ for Networking 7.0 x 5.0mm Ceramic SMD Package: Recommended Land Pattern: Product Features • Very low phase jitter - 0.5ps RMS • Thicker crystal for improved reliability • Low output current - 20mA max. • Low power stand by mode • Industrial Temperature Range • Pb-free & RoHS compliant Product Description This is an enhanced high-frequency 3.3V, 125MHz crystal clock oscillator with superb jitter and low operating current for Ethernet Passive Optical Network (EPON) applications. Pin Functions: The output clock signal, generated internally with a patented oscillator design, is compatible with LVCMOS logic levels. Pin Function 1 OE Function 2 Ground 3 Clock Output 4 V DD Applications • EPON Optical Network Unit (ONU) • EPON Optical Line Termination (OLT) • EPON Gateway *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: FNEPON125 SaRonix-eCera™ is a Pericom® Semiconductor company • US: +1-408-435-0800 TW: +886-3-4518888 • www.pericom.com 10-0020 All specifications are subject to change without notice. FNEPON125 Rev C 04/09/10 1 3.3V CMOS Low-Jitter 125MHz EPON XO FNEPON125 TM Application Specific Crystal Oscillator 7.0 x 5.0mm Electrical Performance Parameter Min. Typ. Output Frequency Max. Units 125 Supply Voltage 2.97 MHz 3.63 V Supply Current, Output Enabled 20 mA Supply Current, Output Disabled 10 µA 3.3 Frequency Stability Operating Temperature Range ±50 ppm +70 °C 10% V DD V -20 Output Logic 0, VOL Output Logic 1, VOH 90% V DD 15 45 Rise and Fall Time Jitter, Phase RMS (1-σ) See Note 1 below V Output Load Duty Cycle Notes 0.25 Jitter, pk-pk pF 55 % Measured 50% V DD 3 ns Measured 20/80% of waveform 0.5 ps 12kHz to 20 MHz frequency band 30 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 specifications othere than those listed, please contact sales. Output Enable / Disable Function Parameter Min. Input Voltage (pin 1), Output Enable Typ. Max. Units 0.7 V DD Input Voltage (pin 1), Output Disable (low power standby) 0.3 V DD Internal Pullup Resistance 30 Notes V or open V Output is Hi-Z kΩ Output Disable Delay 200 ns Output Enable Delay 2 ms Absolute Maximum Ratings Parameter Storage Temperature Min. Typ. -55 Max. Units +125 °C Notes For the latest product information visit: http://www.pericom.com/products/timing/oscillators/FNEPON125/ For test circuit go to: http://www.pericom.com/pdf/sre/tc_hcmos.pdf For soldering reflow profile 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_FNEPON125.pdf For tape and reel information go to: http://www.pericom.com/pdf/sre/tr_7050.pdf SaRonix-eCera™ is a Pericom® Semiconductor company • US: +1-408-435-0800 TW: +886-3-4518888 • www.pericom.com 10-0020 All specifications are subject to change without notice. FNEPON125 Rev C 04/09/10 2