( preliminary ) pl 5 8 6 - 1 5/ - 1 8 low phase noise, lvpecl vcxo ( for 75 m hz to 1 25 m hz fundamental crystals) micrel inc. ? 2180 fortune drive ? san jose, ca 95131 ? u sa ? tel +1(408) 944 - 0800 ? fax +1(408) 474 - 1000 ? www.micrel.com rev 2/ 21 / 1 2 page 1 features ? advanced non multiplier vcxo design for high performance crystal oscillators ? input/ output r ange: 75 mhz to 1 25 mhz ? very low phase noise: < - 150dbc at 100khz ? very low phase jitter: 1 2 0fs rms at 125mhz ? high pull range: 1 25 ppm ? linearity: < 5% ? integrate d variable capacitors ? complementary lvpecl outputs ? power supply: 3. 3v 10% ? available in d ie or wafer form description the pl 586 - 1 5/ - 1 8 is a non - multiplier vcxo ic specifically designed to pull fundamental mode crystals fro m 75 mhz to 1 25 mhz . this ic achiev es a typical pull range of 125 ppm with 5% linearity. the ph ase noise performance, with <1 2 0fs phase jitter, make s this an ideal solution f or all high end clocking application s such as sonet, wimax, cpri, obsai, fiber channel, and any application where per formance and quality are required. die specifications name value size 952 micron x 952 m icron reverse side gnd pad dimensions 80 micron x 80 micron thickness 8 mil die configuration output enable logic pl586 - 1 5 oe state (pad 4 ) output buff er s state 0 outputs tri - state d 1 (default) outputs enabled * internal 6 0 k ? pull - up resistor output enable logic pl586 - 1 8 oe state (pad 4 ) output buffers state 0 (default) outputs enabled 1 outputs tri - state d * internal 6 0k ? pull - down resistor bl ock diagram varicap xtal osc xin q oe vcon xout qb ( 0 , 0 ) 0 . 952 mm q vss v d d xin oe vcon 0 . 9 5 2 m m die id 7 8 1 2 3 4 5 6 q b xout free datasheet http://
( preliminary ) pl 5 8 6 - 1 5/ - 1 8 low phase noise, lvpecl vcxo ( for 75 m hz to 1 25 m hz fundamental crystals) micrel inc. ? 2180 fortune drive ? san jose, ca 95131 ? u sa ? tel +1(408) 944 - 0800 ? fax +1(408) 474 - 1000 ? www.micrel.com rev 2/ 21 / 1 2 page 2 pad assignment pad # name x ( ? m) * y ( ? m) * description 1 vcon - 194 - 365 voltage control input 2 xout - 372 - 190 crystal output connection 3 xin - 372 158 crystal input connection 4 vdd - 117 329 v dd connection 5 qb 140 315 complementary lvpecl output 6 q 315 75 lvpecl output 7 vss 373 - 127 gnd connection 8 oe 373 - 373 output enable pin. internal pull up ( - 1 5) or pull down ( - 1 8). * note: referenced to center of the die. electrical specifica tions 1. absolute maximum ratings parameters symbol min. max. units supply voltage v dd 4.6 v input voltage, dc v i v ss - 0.5 v dd +0.5 v output voltage, dc v o v ss - 0.5 v dd +0.5 v storage temperature t s - 65 150 ? c ambient operating temperature t a - 40 85 ? c hbm esd protection 2,000 v exposure of t he device under conditions beyond the limits specified by maximum ratings for extended periods may cause permanent damage to the device and affect product reliability. these conditions represent a stress rating only, and functional operations of the dev ic e at these or any other co n ditions above the operational limits noted in this specification is not implied. *operating temperature is guaranteed by design. parts are tested to commercial grade only. free datasheet http://
( preliminary ) pl 5 8 6 - 1 5/ - 1 8 low phase noise, lvpecl vcxo ( for 75 m hz to 1 25 m hz fundamental crystals) micrel inc. ? 2180 fortune drive ? san jose, ca 95131 ? u sa ? tel +1(408) 944 - 0800 ? fax +1(408) 474 - 1000 ? www.micrel.com rev 2/ 21 / 1 2 page 3 2. voltage control crystal oscillator parameters symb ol conditions min. typ. max. units vcxo stabilization time * t vcxostb from power valid 10 ms vcxo pullability * xtal c 1 = 6.6ff , c 0 /c 1 = 260 0v ? vcon ? v dd (at 25 ? c) ? 110 ppm xtal c 1 = 8.0 , c 0 /c 1 = 250 0v ? vcon ? v dd (at 25 ? c) ? 125 ppm var i cap control range * vcon = 0 to v dd 0 3.3 v linearity * 0.0 v ? vcon ? 3. 3v 4 % 0.3v ? vcon ? 3.0 v 3 % vcon input impedance * dc input resistance 10 m vcon modulation bw * 0v ? vcon ? v dd , - 3db 30 khz note: parameters denoted with an a sterisk (*) represent nominal characterization data and are not production tested to any specific limits. 3 . crystal specifications parameters symbol conditions min. typ. max. units crystal resonator frequency f xin fundamental mode , at cut 75 1 25 mhz c rystal loading rating c l (x ta l) vcon = 1.65v 8 pf shunt capacitance c 0 3.0 pf recommended esr r e c 0 ? 3.0 pf , up to 10 5 mhz 25 c 0 ? 2.0 pf 25 c 0 ? 1.5 pf 30 4. general electrical specifications parameters symbol conditions min. typ. max. units supply current i dd standard lv pecl loading (see lvpecl levels test circuit, page 4) 5 0 ma operating voltage v dd 2.97 3 .3 3.63 v output clock duty cycle @ v dd C 1.3v (see lvpecl transition time waveform, page 4) 45 50 55 % short circuit current ? 50 ma free datasheet http://
( preliminary ) pl 5 8 6 - 1 5/ - 1 8 low phase noise, lvpecl vcxo ( for 75 m hz to 1 25 m hz fundamental crystals) micrel inc. ? 2180 fortune drive ? san jose, ca 95131 ? u sa ? tel +1(408) 944 - 0800 ? fax +1(408) 474 - 1000 ? www.micrel.com rev 2/ 21 / 1 2 page 4 5. jitter s pecifications parameters conditions min. typ. max. units period j itter rms at 77.76 mhz, wi th capaciti ve decoupling b e tween v dd and gnd. over 10,000 cycles 2.5 ps period j itter pk - to - pk 20 integrated j itter rms at 77.76 m hz integrated 12 khz to 20 mhz 2 0 0 f s integrated j itter rms at 125 m hz integrated 12 khz to 20 mhz 120 fs 6. phase n oise s pecifications parameters frequency @10hz @100hz @1khz @10khz @100khz @1 m hz @1 0m hz units phase noise, relative to carrier 77.76 mhz - 69 - 99 - 126 - 147 - 155 - 156 - 157 dbc/hz note: phase noise measured at vcon = 0 .3 v to 3.0 v . 7 . lv pecl electrical characteri stics parameters symbol conditions min. typ. max. units output high voltage v oh r l = 50 to (v dd C 2v) (see figure) v dd C 1.025 v dd C 0.950 v dd C 0.880 v output low voltage v ol v dd C 1.810 v dd C 1.700 v dd C 1.620 v 8 . lv pecl switching characteristics parameters symbol conditions min. typ. max. units clock rise time t r @20/80% of output waveform 3 00 p s clock fall time t f @80/20% of output waveform 3 00 p s out out 50 ? 50 ? lvpecl levels test circuit lvpecl transistion time waveform out out 20 % 80 % t r t f vdd duty cycle 45 - 55 % 55 - 45 % 2 . 0 v 50 % free datasheet http://
( preliminary ) pl 5 8 6 - 1 5/ - 1 8 low phase noise, lvpecl vcxo ( for 75 m hz to 1 25 m hz fundamental crystals) micrel inc. ? 2180 fortune drive ? san jose, ca 95131 ? u sa ? tel +1(408) 944 - 0800 ? fax +1(408) 474 - 1000 ? www.micrel.com rev 2/ 21 / 1 2 page 5 ordering inform ation micrel inc., reserves the right to make changes in its products or specifications, or both at any time without notice. the in formation furnished by micre l is believed to be accurate and reliable. however, micrel makes no guarantee or warranty concerning the accuracy of s aid information and shall not be responsible for any loss or damage of whatever nature resulting from the use of, or reliance upon this product. life support policy : micrels products are not authorized for use as critical components in life support device s or systems without the express written approval of the president of micrel inc. for part ordering, please contac t our sales department: 2 1 80 fortune drive , san jose, ca 95131 , usa tel: (408) 944 - 0800 fax: (408) 474 - 1 000 part number the order number for this device is a combination of the following: part number, package type and operating temperature range order number packaging pl 586 - 1 5 dc pl586 - 1 8dc die C waffle pack pl 586 - 1 5 wc pl586 - 1 8wc wafer p l 5 8 6 - 1 x x x p a r t n u m b e r p a c k a g i n g o p t i o n d = d i e w = w a f e r t e m p e r a t u r e r a n g e c = c o m m e r c i a l ( 0 c t o 7 0 c ) free datasheet http://
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