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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. LDGPON155 R ev E 7/13/12 2.5V LVDS Low Jitter 155.52MHz GPON XO LDGPON155 Application Specific Crystal Oscillator 5.0 x 3.2mm TM Product Features

  • Very low phase jitter
  • Thicker crystal for improved reliability
  • Pb-free & RoHS compliant
  • Industrial temperature range Product Description The LD series 2.5V , 155.52MHz crystal clock oscillator achieves superb jitter for GPON applications. The output clock signal, generated internally with a custom oscillator design, is compatible with LVDS logic levels. The device, available on tape and reel, is contained in a 5.0 x 3.2mm surface-mount ceramic package.

Applications

  • GPON Optical Network Unit (ONU)
  • GPON Optical Line Termination (OLT)
  • GPON Gateway Package: Recommended Land Pattern: Part Ordering Information: LDGPON155 *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. ASSP XO™ for Networking Pin Functions: Pin Function

1 OE Function

2 N/C

3 VEE

4 OUT

5 OUT

6 VCC

CREATED USING CADSTD LITE FREEWARE FROM WWW.CADSTD.COM. NON-COMMERCIAL USE ONLY. 5.0 x 3.2mm Ceramic SMD CREATED USING CADSTD LITE FREEWARE FROM WWW.CADSTD.COM. NON-COMMERCIAL USE ONLY. (Scale: none, Dimensions are in mm) 12-0053

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. LDGPON155 R ev E 7/13/12 2.5V LVDS Low Jitter 155.52 MHz GPON XO Application Specific Crystal Oscillator 5.0 x 3.2mm LDGPON155 TM Electrical Performance Parameter Min. Typ. Max. Units Notes Output Frequency 155.52 MHz Supply Voltage 2.25 2.50 2.75 V Supply Current, Output Enabled 80 mA Supply Current, Output Disabled 30 mA Frequency Stability ±50 ppm See Note 1 below Operating Temperature Range -20 +70 °C Output Logic 0, VOL 0.90 1.10 V Output Logic 1, VOH 1.43 1.60 V Output Load 100Ω & 5pF output requires termination Duty Cycle 45 55 % Measured 50% waveform Rise and Fall Time 1.0 ns Measured 10/90% of waveform Jitter, Phase RMS (1-σ) 1.0 ps 12 kHz to 20 MHz frequency band Jitter, pk–pk 40 ps 100,000 random periods Notes: Stability includes all combinations of operating temperature, load changes, rated input (supply) voltage changes, initial calibration tolerance (25°C), aging (5 year at 40°C average ef fective ambient temperature), shock and vibration. For specifications 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/crystals-and-crystal-oscillators/assp-xo/?part=LDGPON155 For test circuit go to : http://www.pericom.com/pdf/sre/tc_lvds.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_5032_xo.pdf Output Enable / Disable Function Parameter Min. Typ. Max. Units Notes Input Voltage (pin 1), Output Enable 0.7* VCC V or open Input Voltage (pin 1), Output Disable (low power standby) 0.3* VCC V Outputs disabled to Hi-Z Output Disable Delay 200 ns Output Enable Delay 2 ms Internal Pull Up Resistance 50 kΩ 12-0053