ASSP VCXO Application Specific Voltage Controlled Crystal Oscillator 7.0 x 5.0mm PRETHE156 3.3V PECL 156.25MHz Ethernet VCXO ASSP VCXO™ 7.0 x 5.0mm Ceramic SMD for Ethernet Package: Product Features Recommended Land Pattern: • Very low Pk to Pk jitter - 50ps Max • Low supply current - 70mA Max • Low power standby mode • RoHS Compliant Product Description CREATED USING CADSTD LITE FREEWARE FROM WWW.CADSTD.COM. NON-COMMERCIAL USE ONLY. This is an enhanced 3.3V, 156.25MHz with superb jitter and low operating current for providing clock references in ethernet applications. Pin Functions: Applications • Ethernet Pin Function 1 Voltage Control 2 Enable/Disable 3 Ground 4 Output 5 Output 6 VCC 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: PRETHE156 SaRonix-eCera™ is a Pericom® Semiconductor company • US: +1-408-435-0800 TW: +886-3-4518888 • www.pericom.com 11-0008 All specifications are subject to change without notice. PRETHE156 Rev 04 02/28/11 1 3.3V PECL 156.25MHz Ethernet VCXO PRETHE156 ASSP VCXO Application Specific Voltage Controlled Crystal Oscillator 7.0 x 5.0mm Electrical Performance Parameter Min. Typ. Output Frequency Max. Units 156.250 Supply Voltage VCC 3.135 3.3 3.465 V Supply Current, Output Enabled 70 mA Frequency Stability ±42 ppm +85 °C Operating Temperature Range -40 VCC - 1.62 Output Logic 0, VOL V Output Load 50 Duty Cycle See Note 1 below V VCC - 1.025 Output Logic 1, VOH Notes MHz From outputs VCC - 2V DC ohms 45 55 Rise and Fall Time Measured 50% VCC % 0.8 ns Measured 20/80% of waveform Jitter, Phase 1 ps, RMS(1-s) 12kHz~20MHz Frequency Band Jitter, Peak to Peak 40 ps, Pk-Pk 100.000 Random Periods Phase Noise -50 dBc/Hz at 10Hz offset Phase Noise -85 dBc/Hz at 100Hz offset Phase Noise -115 dBc/Hz at 1kHz offset Phase Noise -130 dBc/Hz at 10kHz offset Phase Noise -140 dBc/Hz at 100kHz offset Notes: 1. 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 effective ambient temperature), shock and vibration. 2. For specifications other than those listed, please contact sales. Voltage Control Function Parameter Min. Absolute Pull Range (APR) ±50 Control Voltage Range 0.3 Typ. Max. 1.65 Monotonic Linearity 10 Input Impedance Notes ppm 3.0 Center Control Voltage 1. Units 130 See 1 below V As rated V For RMT Nominal Frequency % Positive Transfer Slope kΩ Control Voltage Pin APR is relative to the nominal output frequency; APR is inclusive of frequency deviation due to stability. Output Enable / Disable Function Parameter Min. Typ. Max. VOH Input Voltage (pin 2), Output Enable VOL Input Voltage (pin 2), Output Disable (low power standby) Units Notes V or open V Output is Hi-Z 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/PRETHE156/ For test circuit go to: http://www.pericom.com/pdf/sre/tc_vc_pecl.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_7050_xo.pd SaRonix-eCera™ is a Pericom® Semiconductor company • US: +1-408-435-0800 TW: +886-3-4518888 • www.pericom.com 11-0008 All specifications are subject to change without notice. PRETHE156 Rev 04 02/28/11 2