pl600 - 27t low power 3 output xo micrel inc. ? 2180 fortune drive ? san jose, ca 95131 ? usa ? tel +1(408) 944 - 0800 ? fax +1(408) 474 - 1000 ? www.micrel.com rev 6 / 24 / 1 0 page 1 features ? 3 lv cmos outputs with oe tri - state co n trol ? low current consumption: o <4.5ma @ 27mhz, 3.3v ? 10 to 52mhz fundamental crystal i n put ? 1 to 100mhz reference clock input ? accepts both lv cmos and sine wave inputs ? low phase noise ( - 130 dbc @ 10khz of f set) ? low ji tter (rms): 2.5ps period jitter ? 12ma drive cap a bility at ttl output ? 1. 8v to 3. 3v operation ? available in green / rohs 8 - pin so p and 6 - pin sot23 packages description the pl600 - 27t is a low cost xo ic , designed to r e- place multiple xo solutions saving the cos t and board space of clock distribution buffers. in addition, it provide s among the lowest current on the market for the 10mhz to 52mhz range. the pl600 - 27t a c- cept s crys tal and clock inputs from 10 to 52mhz (fundamental res o nant mode crystal ) and provide s low phase noise (< - 130dbc at 10khz offset at 30mhz), and very low jitter (2.5 ps rms period jitter) outputs. pin assignment block diagram xtal osc xin / fin xout clk 0 oe clk 1 clk 2 p l 6 0 0 - 2 7 t 1 2 3 4 5 6 clk 1 gnd fin clk 2 clk 0 vdd sot 23 - 6 l p l 6 0 0 - 2 7 t 1 2 3 4 5 6 7 8 x i n / f i n o e ^ c l k 1 g n d x o u t v d d c l k 2 c l k 0 ^ : d e n o t e s i n t e r n a l p u l l - u p s o p - 8 l
pl600 - 27t low power 3 output xo micrel inc. ? 2180 fortune drive ? san jose, ca 95131 ? usa ? tel +1(408) 944 - 0800 ? fax +1(408) 474 - 1000 ? www.micrel.com rev 6 / 24 / 1 0 page 2 pin description name package pin number type description sop - 8l sot23 - 6l xin/fin 1 3 (fin onl y) i crystal input (10mhz to 52mhz) or ref clock input (1mhz to 100mhz) oe 2 - i output enable input. this pin has inte r nal pull - up resistor. all outputs will be tri - stated when low. clk1 3 1 o output clock. gnd 4 2 p ground. clk2 5 6 o output clock. vdd 6 5 p power supply. clk0 7 4 o output clock. xout 8 - i crystal output. electrical specifica tions 1. absolute maximum ratings parameters symbol min. max. units supply voltage v dd 4.6 v input voltage, dc v i - 0.5 v dd +0.5 v output voltage, dc v o - 0.5 v dd +0.5 v storage temperature t s - 65 150 ? c ambient operating temper a ture* t a - 40 85 ? c junction temperature t j 125 ? c lead temperature (soldering, 10s) 260 ? c esd protection, human body model 2 kv exposure of the 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 ice 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 comme r cial grade only.
pl600 - 27t low power 3 output xo micrel inc. ? 2180 fortune drive ? san jose, ca 95131 ? usa ? tel +1(408) 944 - 0800 ? fax +1(408) 474 - 1000 ? www.micrel.com rev 6 / 24 / 1 0 page 3 2. ac electrical specifications parameters conditions min. typ. max. units input crystal fr e quency 10 52 mhz input (fin) fr e quency lv cmos or sine wave input 1 100 mhz input (fin) signal amplitude internally ac coupled (high fr e quency) 0. 5 v dd vpp input (fin) signal amplitude internally ac coupled (low fr e quency) 3.3v < 50mhz, 2.5v < 40mhz, 1.8v < 15mhz 0.1 v dd vpp settling time at power - up ( v dd < 1.62v) 10 ms output clock rise/fall time 0.8v ~ 2.0v with 10 pf load 1.15 ns 0.3v ~ 3.0v with 15 pf load 2.4 vdd sensitivity frequency vs. v dd +/ - 10% 0.8 0.8 ppm output clock duty cycle measured @ 50% v dd 45 50 55 % short circuit cu r rent ? 50 ma 3. jitter and phase noise specif i cations parameters conditions min. typ. max. units rms period jitter (1 sigma C 1000 samples) with capacitive decoupling b e- tween v dd and gnd . 2.1 2.5 ps phase noise rel a tive to carrier 30mhz @100hz offset - 80 dbc/hz phase noise rel a tive to carrier 30mhz @1khz offset - 110 dbc/hz phase noise rel a tive to carrier 30mhz @10khz offset - 130 dbc/hz phase noise rel a tive to carrier 30mhz @100 khz offset - 138 dbc/hz phase noise rel a tive to carrier 30mhz @1mhz offset - 145 dbc/hz 4. dc specifications param e ters sy m bol cond i tions min. typ. max. units supply current, d y namic, with loaded outputs (at vdd = 3.3v) i dd at 10mhz, cload=15pf 2.0 2 .5 ma at 27mhz, cload=15pf 4.0 4.5 at 48mhz, cload=15pf 7.0 7.5 supply cu r rent in t ri - s tate i dd output di s abled 520 ? a operating voltage v dd 1.62 3.63 v output high voltage v oh i oh = - 12ma (3.3v) 2.4 v output low voltage v ol i ol = 12ma (3.3v) 0.4 v output high voltage v ohc i oh = - 4ma v dd C 0.4 v output d rive c urrent at ttl level (3.3v) 12 ma
pl600 - 27t low power 3 output xo micrel inc. ? 2180 fortune drive ? san jose, ca 95131 ? usa ? tel +1(408) 944 - 0800 ? fax +1(408) 474 - 1000 ? www.micrel.com rev 6 / 24 / 1 0 page 4 5. crystal specifications parameters symbol min. typ. max. units crystal resonator fr e quency f xin 10 52 mhz crystal loading ra t ing c l (x ta l) 8.5 pf maximum sustainable drive level 200 ? w operating drive level 50 ? w ? c0 (for frequencies below 30mhz) 5 pf ? c0 (for frequencies above 30mhz) 4 pf ? esr r s 30 ? ?
pl600 - 27t low power 3 output xo micrel inc. ? 2180 fortune drive ? san jose, ca 95131 ? usa ? tel +1(408) 944 - 0800 ? fax +1(408) 474 - 1000 ? www.micrel.com rev 6 / 24 / 1 0 page 5 layout recommendations the following guidelines are to assist you with a pe r formance optimized pcb design: signal integ rity and termination co n siderations - keep traces short! - trace = inductor. with a capacitive load this equals ringing! - long trace = transmission line. without proper te r- mination this will cause refle c tions ( looks like ringing ). - design long tra ces (> 1 inch) as striplines or micr o strips with defined impe d ance. - match trace at one side to avoid reflections boun c ing back and forth. decoupling and power supply consi d erations - place decoupling capacitors as close as po s sible to the vdd pin(s) to limit noise from the power supply - multiple vdd pins should be decoupled separately for best performance. - addition of a ferrite bead in series with vdd can help prevent noise from other board sources - value of decoupling capacitor is frequency d e- pe ndant. typical values to use are 0.1 ? f for d e- signs using frequencies < 50mhz and 0.01 ? f for designs using fr e quencies > 50mhz. c r y s t a l t u n i n g c i r c u i t s e r i e s a n d p a r a l l e l c a p a c i t o r s u s e d t o f i n e t u n e t h e c r y s t a l l o a d t o t h e c i r c u i t l o a d . c s t C s e r i e s c a p a c i t o r , u s e d t o l o w e r c i r c u i t l o a d t o m a t c h c r y s t a l l o a d . r a i s e s f r e q u e n c y o f f s e t . t h i s c a n b e e l i m i n a t e d b y u s i n g a c r y s t a l w i t h a c l o a d o f e q u a l o r g r e a t e r v a l u e t h a n t h e o s c i l l a t o r . c p t C p a r a l l e l c a p a c i t o r s , u s e d t o r a i s e t h e c i r c u i t l o a d t o m a t c h t h e c r y s t a l l o a d . l o w e r s f r e q u e n c y o f f s e t . c r y s t a l x i n 1 8 x o u t c p t c p t c s t t y p i c a l l v c m o s t e r m i n a t i o n p l a c e s e r i e s r e s i s t o r a s c l o s e a s p o s s i b l e t o l v c m o s o u t p u t l v c m o s o u t p u t b u f f e r ( t y p i c a l b u f f e r i m p e d a n c e 2 0 ? ? ? t o l v c m o s i n p u t s e r i e s r e s i s t o r u s e v a l u e t o m a t c h o u t p u t b u f f e r i m p e d a n c e t o 5 0 ? t r a c e . t y p i c a l v a l u e 3 0 ? 5 0 ? l i n e
pl600 - 27t low power 3 output xo micrel inc. ? 2180 fortune drive ? san jose, ca 95131 ? usa ? tel +1(408) 944 - 0800 ? fax +1(408) 474 - 1000 ? www.micrel.com rev 6 / 24 / 1 0 page 6 package drawings ( green package com pliant) s op - 8l sot23 - 6l symbol dimension in mm min. max. a 1. 35 1.7 5 a1 0.1 0 0.25 a2 1.25 1.50 b 0.33 0.5 3 c 0.19 0.27 d 4.8 0 5.00 e 3.8 0 4.0 0 h 5.80 6.20 l 0. 40 0.89 e 1.27 bsc symbol dimension in mm min. max. a 1.05 1.35 a1 0.05 0.15 a2 1.00 1.20 b 0.30 0.50 c 0.08 0.20 d 2.80 3.00 e 1.50 1 . 70 h 2.60 3.00 l 0.35 0.55 e 0.95 bsc c l a 2 e h d a 1 e b a c l a 2 e h d a 1 e b a pin 1 dot
pl600 - 27t low power 3 output xo micrel inc. ? 2180 fortune drive ? san jose, ca 95131 ? usa ? tel +1(408) 944 - 0800 ? fax +1(408) 474 - 1000 ? www.micrel.com rev 6 / 24 / 1 0 page 7 ordering inform ation ( green package com pl i ant) micrel inc., reserves the right to make changes in its products or specifications, or both at any time without no tice. the information furnished by micrel is believed to be accurate and reliable. however, micrel makes no guarantee or warranty concerning the accuracy of sa id 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 devices or systems without the express written approval of the president of micrel inc. for part ordering, please contact 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 part / order nu m ber marking package option pl6 00 - 27ts c p600 - 27t sc lllll 8 - pin sop (tube) pl6 00 - 27ts c - r 8 - pin sop (tape and reel) pl6 00 - 27ts i p600 - 27t si lllll 8 - pin sop (tube) pl6 00 - 27ts i - r 8 - pin sop (tape and reel) pl600 - 27ttc - r a27t lll 6 - pin sot23 (tape and reel) pl600 - 27tt i - r a27t llli 6 - pin sot23 (tape and reel) ? marking notes : lll and lllll represent the production lot number p l 6 0 0 - 2 7 t x x x p a r t n u m b e r p a c k a g e t y p e s = s o p - 8 l t = s o t 2 3 - 6 l 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 ) i = i n d u s t r i a l ( - 4 0 c t o 8 5 c ) s h i p p i n g o p t i o n b l a n k = t u b e r = t a p e & r e e l
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