DATASHEET SEARCH SITE | WWW.ALLDATASHEET.COM
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 2
Technical content
All specifications are subject to change without notice. PRETHE156 R ev B 0 7/13/12 SaRonix-eCera™ is a Pericom® Semiconductor company • US: +1-408-435-0800 TW: +886-3-4518888 • www .pericom.com 3.3V PECL 156.25MHz Ethernet VCXO PRETHE156 Application Specific Voltage Controlled Crystal Oscillator 7.0 x 5.0mm ASSP VCXO Package: Pin Functions: Pin Function
1 Control Voltage
2 Enable/Disable
3 Ground
4 Output
6 VCC
Recommended Land Pattern: Part Ordering Information: PRETHE156 *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. CREATED USING CADSTD LITE FREEWARE FROM WWW.CADSTD.COM. NON-COMMERCIAL USE ONLY. CREATED USING CADSTD LITE FREEWARE FROM WWW.CADSTD.COM. NON-COMMERCIAL USE ONLY. 7.0 x 5.0mm Ceramic SMD ASSP VCXO™ for Ethernet Product Features
- Very low Pk to Pk jitter - 40ps Max
- Low supply current - 70mA Max
- Low power standby mode
- RoHS Compliant Product Description This is an enhanced 3.3V , 156.25MHz with superb jitter and low operating current for providing clock references in ethernet applications.
Applications
- Ethernet (Scale: none, Dimensions are in mm) 12-0053
All specifications are subject to change without notice. PRETHE156 R ev B 0 7/13/12 SaRonix-eCera™ is a Pericom® Semiconductor company • US: +1-408-435-0800 TW: +886-3-4518888 • www .pericom.com 3.3V PECL 156.25MHz Ethernet VCXO Application Specific Voltage Controlled Crystal Oscillator 7.0 x 5.0mm PRETHE156 ASSP VCXO Electrical Performance Parameter Min. Typ. Max. Units Notes Output Frequency 156.250 MHz Supply Voltage VCC 3.135 3.3 3.465 V Supply Current, Output Enabled 70 mA Frequency Stability ±42 ppm See Note 1 below Operating Temperature Range -40 +85 °C Output Logic 0, VOL VCC - 1.62 V Output Logic 1, VOH VCC - 1.025 V Output Load 50 ohms From outputs VCC - 2VDC Duty Cycle 45 55 % Measured 50% VCC Rise and Fall Time 0.8 ns Measured 20/80% of waveform Jitter, Phase RMS(1- s) 1 ps 12kHz~20MHz Frequency Band Jitter, Peak to Peak (Pk-Pk) 40 ps 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: 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. 2. For specifications other than those listed, please contact sales. Voltage Control Function Parameter Min. Typ. Max. Units Notes Absolute Pull Range (APR) ±50 ppm See 1 below Control Voltage Range 0.3 3.0 V As rated Center Control Voltage 1.65 V For RMT Nominal Frequency Monotonic Linearity 10 % Positive Transfer Slope Input Impedance 130 kΩ Control Voltage Pin 1. 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. Units Notes Input Voltage (pin 2), Output Enable VOH V or open Input Voltage (pin 2), Output Disable (low power standby) VOL V 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/crystals-and-crystal-oscillators/assp-xo/?part=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 12-0053