all specifications are subject to change without notice. FRETHE025 r ev b 0 7/12/12 saronix-ecera? is a pericom? semiconductor company ? us: +1-408-435-0800 tw: +886-3-4518888 ? www .pericom.com 3.3v cmos 25.000mhz ethernet vcxo FRETHE025 application specifc voltage controlled crystal oscillator 7.0 x 5.0mm package: pin functions: pin function 1 control voltage 2 enable/disable 3 ground 4 output 5 n/c 6 v dd recommended land pattern: part ordering information: FRETHE025 *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 - 50ps max ? low supply current - 10ma max ? low power standby mode ? rohs compliant product description this is an enhanced 3.3v, 25.000mhz with superb jitter and low operating current for providing clock references in ethernet applications. applications ? ethernet 1 (scale: none, dimensions are in mm) assp vcxo 12-0050
all specifications are subject to change without notice. FRETHE025 r ev b 0 7/12/12 saronix-ecera? is a pericom? semiconductor company ? us: +1-408-435-0800 tw: +886-3-4518888 ? www .pericom.com 3.3v cmos 25.000 mhz ethernet vcxo application specifc voltage controlled crystal oscillator 7.0 x 5.0mm FRETHE025 output enable / disable function parameter min. typ. max. units notes input voltage (pin 2), output enable 3.0 v or open input voltage (pin 2), output disable (low power standby) 0.3 v output is hi-z internal pullup resistance 20 k output disable delay 100 ns output enable delay 100 ns electrical performance parameter min. typ. max. units notes output frequency 25.000 mhz supply voltage v dd 3.135 3.3 3.465 v supply current, output enabled 10 ma supply current, output disabled 2 ma frequency stability 25 ppm see note 1 below operating temperature range -20 +70 c output logic 0, v ol 10% v dd v output logic 1, v oh 90% v dd v output load 15 pf duty cycle 45 55 % measured 50% v dd rise and fall time 4 ns measured 20/80% of waveform jitter, phase, rms(1- s) 1 ps 12khz~20mhz frequency band jitter, peak to peak (pk-pk) 50 ps 100.000 random periods notes: 1. stability includes all combinations of operating temperature, load changes, rated input (supply) voltage changes, initial calibration tolerance (25c), aging (10 years at +40c average effective ambient temperature), shock and vibration. 2. for specifcations 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=FRETHE025 for test circuit go to : http://www.pericom.com/pdf/sre/tc_vc6cmos.pdf for soldering refow profle 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.pdf 2 voltage control function parameter min. typ. max. units notes absolute pull range (apr) 100 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 5000 k control voltage pin notes: 1. apr is relative to the nominal output frequency; apr is inclusive of frequency deviation due to stability. assp vcxo 12-0050
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