_____________________________________________________________________________________________________________________________ _________________ dsc1102 | dsc1122 page 1 mk - q - b - p - d - 1104 10 - 02 - 6 low - jitter precision lvpecl oscillator dsc110 2 dsc11 22 general description the dsc 11 0 2 & dsc112 2 series of high performance oscillators utilizes a proven silicon mems technology to provide excellent jitter and stability over a wide range of supply voltages and temperatures. by eliminating the need for quartz or saw technology , mems oscillator s significantly enhance reliability and acc elerate product development , while meeting stringent cloc k performance criteria for a variety of communications, storage, and networking applications. dsc110 2 has a standby feature allowing it to completely power - down when en pin is pulled low; whereas for dsc112 2 , only the outputs are disabled when en is low. both oscillators are a vailable in industry standard packages, including the small 3.2x2.5 mm 2 , and are drop - in r eplacement s for standard 6 - pin lvpecl quartz crystal oscillator s . block diagram output enable modes en pin dsc110 2 dsc112 2 high outputs active outputs active nc outputs active outputs active low standby outputs disabled features ? low rms phase jitter: <1 ps (typ) ? high stability: 10 , 25, 50 ppm ? wide temp erature range o industrial: - 40 to 85 c o ext. commercial: - 20 to 70 c ? high supply noise rejection: - 50 dbc ? short lead time: 2 weeks ? wide freq. range: 2.3 to 4 60 mhz ? small industry standard footprint s o 2.5x2.0, 3.2x2.5, 5.0x3.2, & 7.0x5.0 mm ? excellent shock & vibration immunity o qualified to mil - std - 883 ? high reliability o 20x better mtf than quartz oscillators ? low current consumption ? supply range of 2.25 to 3.6 v ? standby & output enable function ? lead free & rohs compliant ? lvds & hcsl versions available applications ? storage area networks o sata, sas , fibre channel ? passive optical networks o epon, 10g - epon, gpon, 10g - pon ? ethernet o 1g, 10gbase - t/kr/lr/sr, and fcoe ? hd/sd/sdi video & surveillance ? pc i express: gen 1 & gen 2 ? displayport
_____________________________________________________________________________________________________________________________ _________________ dsc1102 | dsc1122 page 2 mk - q - b - p - d - 1104 10 - 02 - 6 dsc 1102 low - jitter precision lvpecl oscillator dsc 1122 absolute maximum ratings item min max unit condition supply voltage - 0.3 +4.0 v input voltage - 0.3 v dd +0.3 v junction temp - +150 c storage temp - 55 +150 c soldering temp - +260 c 40 sec max. esd hbm mm cdm - 4000 400 1500 v ordering code note: 1000+ years of data retention on internal mem ory specifications notes: 1. pin 6 v dd should be filtered with 0. 1uf capacitor . 2. t su is time to 100ppm of output frequency after v dd is applied and outputs are enabled. 3. output waveform and test ci rcuit figures below define the parameters. 4. output is enabled if pad is floated or not connected. parameter condition min. typ. max. unit supply voltage 1 v dd 2.25 3.6 v supply current i dd en pin low C output s are d isabled dsc1102 dsc11 2 2 20 0.095 2 2 ma frequency stability f includes frequency variations due to initial tolerance, temp. and power supply voltage 10 25 50 ppm aging f 1 year @ 25c 5 ppm startup time 2 t su t= 25c 5 ms input logic levels input logic hig h input logic low v ih v il 0.75 x v d d - - 0.25 x v dd v output disable time 3 t da 5 ns output enable time t en dsc1102 dsc1122 5 20 ms ns enable pull - up resistor 4 pull - up resistor exist 40 k lvpecl outputs supply current i dd output enabled, r l = 5 0 5 6.5 58 ma output logic levels output logic high output logic low v oh v ol r l = 5 0 v dd - 1.08 - - v dd - 1.55 v pk to pk output swing single - ended 80 0 mv output transition time 3 rise time fall time t r t f 20% to 80% r l = 50 , c l = 0 p f 250 ps frequency f 0 single frequency 2.3 4 60 mhz output duty cycle sym differential 48 52 % period jitter j per 2.5 ps rms integrated phase noise j ph 200khz to 20mhz @ 156.25mhz 100khz to 20mhz @ 156.25mhz 12khz to 20mhz @ 156.25mhz 0.25 0.38 1. 7 2 ps rms dsc11 125.0000 freq (mhz) 125.0000 0 enable modes 0: enable/standby 2: enable/disable - packing t: tape & reel : tube 2 c i 5 package a: 7.0x5.0mm b: 5.0x3.2mm c: 3.2x2.5mm d: 2.5x2.0 mm n: 7.0x5.0mm ( no center pad ) temp range e: - 20 to 70 i: - 40 to 85 l: - 40 to 105 stability 1: 50ppm 2: 25ppm 5: 10 ppm t
_____________________________________________________________________________________________________________________________ _________________ dsc1102 | dsc1122 page 3 mk - q - b - p - d - 1104 10 - 02 - 6 dsc 1102 low - jitter precision lvpecl oscillator dsc 1122 nominal performance parameters (unless specified otherwise: t=25 c, v dd =3.3 v ) power supply rejection ratio phase jitter (integrated phase noise) output waveform typical termination scheme - 80 - 70 - 60 - 50 - 40 - 30 - 20 - 10 0 0.1 1 10 100 1000 10000 rejection (dbc) supply noise frequency (khz) 50 - mv 100 - mv 0.0 0.5 1.0 1.5 2.0 2.5 0 200 400 600 800 1000 phase jitter (ps rms) low - end of integration bw: x khz to 20 mhz 156mhz - lvpecl 212mhz - lvpecl 320mhz - lvpecl 410mhz - lvpecl v il 1/ f o output enable t da t en t f t r v ih 80 % 20% 50% output 830 mv v dd 0.1uf 82 ? 130 ? 100 ? 82 ? 130 ? v dd 2 3 4 5 6
_____________________________________________________________________________________________________________________________ _________________ dsc1102 | dsc1122 page 4 mk - q - b - p - d - 1104 10 - 02 - 6 dsc 1102 low - jitter precision lvpecl oscillator dsc 1122 test circuit solder reflow profile msl 1 @ 260 c refer to jstd - 020c ramp - up rate (200 c to peak temp) 3 c/sec max. preheat time 150 c to 200 c 60 - 180 sec time maintained above 217 c 60 - 150 sec peak temperature 255 - 260 c time within 5 c of actual peak 20 - 40 sec ramp - down rate 6 c/sec max. time 25 c to peak temperature 8 min max. 0.1uf v dd 0.01uf i dd v da 6 4 5 1 3 2 lvpecl lvpecl v tt 50 50 v tt = v dd - 2.0v 60 - 150 sec 20 - 40 sec 60 - 180 sec 8 min max pre heat reflow cool time temperature ( c) 3c/sec max. 6c/sec max. 200 c 217 c 150 c 25 c 260 c 3c/sec max. 60 - 150 sec 20 - 40 sec 60 - 180 sec 8 min max pre heat reflow cool time temperature ( c) 3c/sec max. 6c/sec max. 200 c 217 c 150 c 25 c 260 c 60 - 150 sec 20 - 40 sec 60 - 180 sec 8 min max pre heat reflow cool time temperature ( c) 3c/sec max. 6c/sec max. 200 c 217 c 150 c 25 c 260 c 3c/sec max.
_____________________________________________________________________________________________________________________________ _________________ dsc1102 | dsc1122 page 5 mk - q - b - p - d - 1104 10 - 02 - 6 dsc 1102 low - jitter precision lvpecl oscillator dsc 1122 package dimensions 7 .0 x 5 . 0 mm plastic package 5 .0 x 3.2 mm plastic package 1 2 3 4 6 5 7 0 . 1 0 [ 0 . 2 7 6 0 . 0 0 4 ] 5 0 . 1 0 [ 0 . 1 9 7 0 . 0 0 4 ] 1 2 3 4 6 5 1 . 1 0 . 0 1 [ 0 . 4 3 0 . 0 0 4 ] 3 . 7 [ 0 . 1 4 6 ] r e f 0 . 8 5 0 . 0 5 1 . 4 [ 0 . 0 5 5 ] 2 . 6 [ 0 . 1 0 2 ] 1 2 3 4 5 2 . 5 4 [ 0 . 1 0 0 ] v i a t o p o w e r t r a c e v i a t o g r o u n d p l a n e n o . p i n t e r m i n a l 1 e n a b l e 2 n / c 3 g r o u n d 4 5 o u t - 6 v d d o u t 6 e x t e r n a l d i m e n s i o n s u n i t s : m m [ i n c h e s ] r e c o m m e n d e d s o l d e r p a d l a y o u t u n i t s : m m [ i n c h e s ] 2 . 5 4 [ 0 . 1 0 0 ] 1 . 4 0 . 1 0 [ 0 . 0 5 5 0 . 0 0 4 ] 1 . 8 [ 0 . 0 7 1 ] 2 . 8 [ 0 . 1 1 0 ] 1 . 4 [ 0 . 0 5 5 ] p a d t i e t o g n d 1 2 3 4 6 5 5 0 . 0 5 [ 0 . 1 9 7 0 . 0 0 2 ] 3 . 2 0 . 0 5 [ 0 . 1 2 6 0 . 0 0 2 ] 1 2 3 4 6 5 1 . 2 7 [ 0 . 0 5 0 ] 0 . 7 0 . 1 [ 0 . 0 7 9 0 . 0 0 2 ] 1 . 2 [ 0 . 0 4 7 ] r e f 0 . 8 5 0 . 0 5 0 . 6 4 [ 0 . 0 2 5 ] 1 . 1 [ 0 . 0 4 3 ] 1 . 2 [ 0 . 0 4 7 ] r e f 1 2 3 4 5 1 . 2 7 [ 0 . 0 5 ] v i a t o p o w e r t r a c e v i a t o g r o u n d p l a n e n o . p i n t e r m i n a l 1 e n a b l e 2 n / c 3 g r o u n d 4 5 o u t - 6 v d d o u t 6 e x t e r n a l d i m e n s i o n s u n i t s : m m [ i n c h e s ] r e c o m m e n d e d s o l d e r p a d l a y o u t u n i t s : m m [ i n c h e s ] 0 . 6 4 0 . 0 5
_____________________________________________________________________________________________________________________________ _________________ dsc1102 | dsc1122 page 6 mk - q - b - p - d - 1104 10 - 02 - 6 dsc 1102 low - jitter precision lvpecl oscillator dsc 1122 3.2 x 2.5 mm plastic package 2.5 x 2.0 mm plastic package 1 2 3 4 6 5 3 . 2 0 . 0 5 [ 0 . 1 2 6 0 . 0 0 2 ] 2 . 5 0 . 0 5 [ 0 . 0 9 8 0 . 0 0 2 ] 1 2 3 4 6 5 0 . 5 0 . 0 5 [ 0 . 1 9 8 0 . 0 0 2 ] 0 . 9 0 . 0 5 [ 0 . 0 3 5 0 . 0 0 2 ] 1 . 0 5 [ 0 . 0 4 1 ] 0 . 7 0 . 1 [ 0 . 0 7 9 0 . 0 0 2 ] 0 . 1 [ 0 . 0 0 4 ] r e f 0 . 9 [ 0 . 0 3 5 ] r e f 0 . 8 5 0 . 0 5 0 . 5 [ 0 . 1 9 7 ] 0 . 9 [ 0 . 0 3 5 ] 1 [ 0 . 0 3 9 ] 0 . 9 [ 0 . 0 3 5 ] r e f 1 2 3 4 5 0 . 3 7 5 v i a t o p o w e r t r a c e v i a t o g r o u n d p l a n e n o . p i n t e r m i n a l 1 e n a b l e 2 n / c 3 g r o u n d 4 5 o u t - 6 v d d o u t 6 e x t e r n a l d i m e n s i o n s u n i t s : m m [ i n c h e s ] r e c o m m e n d e d s o l d e r p a d l a y o u t u n i t s : m m [ i n c h e s ] 1 2 3 4 6 5 2 . 5 0 . 0 5 [ 0 . 0 9 8 0 . 0 0 2 ] 2 . 0 0 . 0 5 [ 0 . 0 7 9 0 . 0 0 2 ] 1 2 3 4 6 5 0 . 2 5 0 . 0 5 [ 0 . 0 9 9 0 . 0 0 2 ] 0 . 6 5 0 . 0 5 [ 0 . 0 2 6 0 . 0 0 2 ] 0 . 8 2 5 [ 0 . 0 3 2 ] 0 . 7 0 . 1 [ 0 . 0 7 9 0 . 0 0 2 ] 0 . 7 6 5 0 . 1 0 . 5 3 5 r e f 0 . 6 r e f 0 . 7 0 . 1 [ 0 . 0 7 9 0 . 0 0 2 ] 0 . 8 5 0 . 0 5 0 . 2 5 0 . 0 5 [ 0 . 0 9 9 0 . 0 0 2 ] 0 . 6 5 0 . 0 5 [ 0 . 0 2 6 0 . 0 0 2 ] 0 . 8 5 0 . 7 r e f 1 2 3 4 5 6 0 . 3 7 5 v i a t o p o w e r t r a c e v i a t o g r o u n d p l a n e n o . p i n t e r m i n a l 1 e n a b l e 2 n / c 3 g r o u n d 4 5 o u t - 6 v d d o u t e x t e r n a l d i m e n s i o n s u n i t s : m m [ i n c h e s ] r e c o m m e n d e d s o l d e r p a d l a y o u t u n i t s : m m [ i n c h e s ]
_____________________________________________________________________________________________________________________________ _________________ dsc1102 | dsc1122 page 7 mk - q - b - p - d - 1104 10 - 02 - 6 dsc 1102 low - jitter precision lvpecl oscillator dsc 1122 7.0 x 5.0 mm plastic package disclaimer: micrel makes no representations or warranties with respect to the accuracy or completeness of the information furnished in th is data sheet. this information is not intended as a warranty and micrel does not assume responsibility for its use. micrel reserves the right to change circuitry, specifications and descriptions at any time without notice. no license, whether express, implied, arising by estoppel or otherwise, to any intellectual property r ights is granted by this document. except as provided in micrels terms and conditions of sale for such products, micrel assumes no liability whatsoever, and micrel disclaims any express or implied warranty relating to the sale and/or use of micrel produc ts including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyrig ht or other intellectual property right. micrel products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product can reasonably be expected to result in personal injury. life support devices or systems are devices or systems that (a) are intended for surgical implant into the body or (b) support o r sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. a purchasers use or sale of mic rel products for use in life support appliances, devices or systems is a purchasers own risk and purchas er agrees to fully indemnify micrel for any damages resulting from such use or sale. micrel , inc. 2180 fortune drive , san jose, california 95131 usa phone: +1 (408) 944 - 0800 fax: +1 (408) 474 - 1000 email: hbwhelp @ micrel .com www.micrel.com 1 2 3 4 6 5 7 0 . 1 0 [ 0 . 2 7 6 0 . 0 0 4 ] 5 0 . 1 0 [ 0 . 1 9 7 0 . 0 0 4 ] 1 2 3 4 6 5 1 . 1 0 . 0 1 [ 0 . 4 3 0 . 0 0 4 ] 3 . 7 [ 0 . 1 4 6 ] r e f 0 . 8 5 0 . 0 5 1 . 4 [ 0 . 0 5 5 ] 2 . 6 [ 0 . 1 0 2 ] 1 2 3 4 5 2 . 5 4 [ 0 . 1 0 0 ] v i a t o p o w e r t r a c e v i a t o g r o u n d p l a n e n o . p i n t e r m i n a l 1 e n a b l e 2 n / c 3 g r o u n d 4 5 o u t - 6 v d d o u t 6 e x t e r n a l d i m e n s i o n s u n i t s : m m [ i n c h e s ] r e c o m m e n d e d s o l d e r p a d l a y o u t u n i t s : m m [ i n c h e s ] 2 . 5 4 [ 0 . 1 0 0 ] 1 . 4 0 . 1 0 [ 0 . 0 5 5 0 . 0 0 4 ] 1 . 4 [ 0 . 0 5 5 ]
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