1 precision edge SY89321L micrel, inc. m9999-060208 hbwhelp@micrel.com or (408) 955-1690 description 3.3v power supply 1.9ns typical propagation delay 275mhz f max differential lvpecl/cml/lvds inputs 24ma lvttl outputs flow-through pinouts internal input resistors: pulldown on in, pulldown and pullup on /in q output will default low with inputs open v bb output available in ultra-small 8-pin mlf (2mm x 2mm) package features precision edge SY89321L rev.: d amendment: /0 issue date: june 2008 the SY89321L is a differential lvpecl/cml/lvds- to-lvttl translator requiring only a single +3.3v power. the SY89321L is functionally equivalent to the sy100ept21l, but in an ultra-small 8-pin mlf package that features a 70% smaller footprint. this ultra-small package and low skew single gate design make the SY89321L ideal for applications that require the translation of a clock or data signal where minimal space, low power and low cost are critical. v bb allows a differential, single-ended, or ac-coupled interface to the device. if used, the v bb output should be bypassed to v cc with 0.01 f capacitor. under open input conditions, the /in will be biased at a v cc /2 voltage level and the in input will be pulled to ground. this condition will force the q output low to provide added stability. the SY89321L is com patible with positive ecl 100k logic levels. precision edge precision edge is a registered trademark of micrel, inc. micro leadframe and mlf are registered trademarks of amkor technology, inc. 3.3v differential lvpecl/cml/lvds-to-lvttl translator block diagram lvpecl/ cml/lvds in /in q lvttl
2 precision edge SY89321L micrel, inc. m9999-060208 hbwhelp@micrel.com or (408) 955-1690 pin description pin number pin name type pin function 1,6 nc no connection. 2 in 100k lvpecl/ differential pecl/cml/lvds input: internal 75k ? pull-down resistor. if left cml/lvds open, pin defaults low. q output will be low. see input interface input applications section for cml, lvds and single-ended inputs. 3 /in 100k lvpecl/ differential pecl/cml/lvds input: internal 75k ? pull-up and pull-down cml/lvds resistors. if left floating, pin defaults to v cc /2. when not used, this input can input be left open. see input interface applications section for cml, lvds and single-ended inputs. 4 vbb reference bias reference voltage: v cc 1.3v. used as reference voltage for single- voltage output ended inputs or ac-coupling to the in, /in inputs. limit sink / source 0.5ma. 5 gnd, ground gnd and exposed pad must be tied to ground plane. exposed pad 7 q lvttl output single-ended lvttl output: defaults to low if in inputs left open. 8 vcc positive positive power supply: bypass with 0.1 f//0.01 f low esr capacitors. power supply package/ordering information nc in /in lvttl vbb vcc q nc lvpecl/cml/lvds gnd 1 2 3 4 8 7 6 5 8-pin mlf ultra-small outline (2mm x 2mm) ordering information package operating package lead part number type range marking finish SY89321Lmitr mlf-8 industrial 321 sn-pb SY89321Lmgtr (1) mlf-8 industrial 321 with pb-free pb-free bar-line indicator nipdau note: 1. pb-free package is recommended for new designs.
3 precision edge SY89321L micrel, inc. m9999-060208 hbwhelp@micrel.com or (408) 955-1690 absolute maximum ratings (note 1) supply voltage (v cc ) .................................. 0.5v to +3.8v input voltage (v in ) ......................................... 0.5v to v cc lvtt output current (i out ) continuous ............................................................. 50ma surge .................................................................... 100ma current (v bb ) source or sink current on v bb , note 3 ................ 1.5ma lead temperature (soldering, 20 sec.) ................... +260 c storage temperature (t s ) ....................... 65 c to +150 c operating ratings (note 2) supply voltage (v cc ) ...................................... 3.0v to 3.6v ambient temperature (t a ) ......................... 40 c to +85 c package thermal resistance, note 4 mlf ( ja ) still-air ................................................................. 93 c/w 500lfpm ............................................................... 87 c/w mlf ( jb ) junction-to-board ................................................ 60 c/w v cc = +3.3v 10% symbol parameter condition min typ max units i os output short circuit current v out = 0v, note 5 80 275 ma i cc power supply current 14 20 ma v oh output high voltage i oh = 3.0ma 2.0 v v ol output low voltage i ol = 24ma 0.5 v lvttl dc electrical characteristics v cc = +3.3v 10%; t a = 40 c to +85 c unless otherwise noted. symbol parameter condition min typ max units v ih_lvpecl input high voltage v cc 1.165 v cc 0.880 v v il_lvpecl input low voltage v cc 1.810 v cc 1.475 v v bb bias voltage v cc 1.38 v cc 1.32 v cc 1.26 v v ih_cml input high voltage v cc 0.400 v cc v v il_cml input low voltage v cc 0.800 v ih 0.400 v v ih_lvds input high voltage 1.4 1.5 v v il_lvds input low voltage 1.1 1.2 v i ih input high current 150 a i il input low current in 0.5 a input low current /in 300 a note 1. permanent device damage may occur if absolute maximum ratings are exceeded. this is a stress rating only and functional operati on is not implied at conditions other than those detailed in the operational sections of this data sheet. exposure to absolute maximum ra tlng conditions for extended periods may affect device reliability. note 2. the data sheet limits are not guaranteed if the device is operated beyond the operating ratings. note 3. due to the limited drive capability use for input of the same package only. note 4. package thermal resistance assumes exposed pad is soldered (or equivalent) to the devices most negative potential (gnd) on the pcb. note 5. max. limit only applicable for short durations, not for continuous operation! lvpecl/cml/lvds dc electrical characteristics
4 precision edge SY89321L micrel, inc. m9999-060208 hbwhelp@micrel.com or (408) 955-1690 v cc = +3.3v 10%; c l = 20pf, t a = 40 c to +85 c unless otherwise noted. symbol parameter condition min typ max units f max maximum input frequency note 6 275 mhz t pd propagation delay 1.5 1.9 2.5 ns t skpp part-to-part skew v in 100mv, note 7 0.5 ns v cmr common mode range 1.2 v cc v v pp minimum peak-to-peak input note 8 100 mv t r output rise/fall time 0.5 1.0 ns t f (1.0v to 2.0v) t jitter cycle-to-cycle (rms) note 9 2ps rms total jitter (pk-pk) note 10 15 ps pp note 6. the f max value is specified as the minimum guaranteed maximum frequency (while maintaining ttl swing of 0.8v to 2.0v). actual opera- tional maximum frequency may be greater. note 7. part-to-part skew considering high-to-high transitions at common v cc level. note 8. v pp (min) is the minimum input swing for which ac parameters are guaranteed. note 9. cycle-to-cycle jitter definition: the variation of periods between adjacent cycles, t n t n 1 ,where t is the time between rising edges of the output signal. note 10. total jitter definition: with an ideal clock input of frequency f max , no more than one output edge in 10 12 output edge will deviate by more than the specified peak-to-peak jitter value. ac electrical characteristics input interface applications in v cc /in SY89321L vbb 0.01 f single-ended input (terminating unused input) in 3.3v /in SY89321L 100 ? cml cml input in v cc /in SY89321L 100 ? lvds lvds input
5 precision edge SY89321L micrel, inc. m9999-060208 hbwhelp@micrel.com or (408) 955-1690 micrel, inc. 2180 fortune drive san jose, ca 95131 usa tel + 1 (408) 944-0800 fax + 1 (408) 474-1000 web http://www.micrel.com the information furnished by micrel in this datasheet is believed to be accurate and reliable. however, no responsibility is as sumed by micrel for its use. micrel reserves the right to change circuitry and specifications at any time without notification to the customer. micrel products are not designed or authorized for use as components in life support appliances, devices or systems where malfu nction of a product can reasonably be expected to result in personal injury. life support devices or systems are devices or systems that (a) are intend ed for surgical implant into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant inj ury to the user. a purchaser s use or sale of micrel products for use in life support appliances, devices or systems is at purchaser s own risk and purchaser agrees to fully indemnify micrel for any damages resulting from such use or sale. ? 2006 micrel, incorporated. 8 lead ultra-small epad- micro leadframe (mlf-8) package ep- exposed pad die compside island heat dissipation heavy copper plane heavy copper plane v ee v ee heat dissipation pcb thermal consideration for 8-pin mlf package package notes: note 1. package meets level 2 qualification. note 2. all parts are dry-packaged before shipment. note 3. exposed pads must be soldered to a ground for proper thermal management.
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