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pcs3p73u00a usb 2.0 peak emi reduction ic ?2010 scillc. all rights reserved. publication order number: january 2010 ? rev. 1 pcs3p73u00/d general features ? 1x peak emi reduction ic ? input frequency: 10mhz - 60mhz @ 2.5v 10mhz - 70mhz @ 3.3v ? output frequency: 10mhz - 60mhz @ 2.5v 10mhz - 70mhz @ 3.3v ? supply voltage: 2.5v0.2v 3.3v 0.3v ? analog spread selection up to 0.5% ? modrate selection option ? commercial temperature range ? 8-pin tssop, soic and tdfn (2mmx2mm) package ? conforms to usb2.0 compliance standards ? the first true drop-in solution product description pcs3p73u00a is a versatile, 3.3v / 2.5v peak emi reduction ic. pcs3p73u00a accepts an input clock either from a crystal or from an external reference (ac or dc coupled to xin / clkin) and locks on to it delivering a 1x modulated clock output. pcs3p73u00a has a frequency selection (fs) control that fa cilitates selecting one of the two frequency ranges within the operating frequency range. refer to the frequency selection table for details . pcs3p73u00a has an ssextr pin to select different deviations depending upon the value of an external resistor connected between ssextr and gnd. modulation rate (mr) control selects two different modulation rates. pcs3p73u00a operates from a 3.3v / 2.5v supply and is available in an 8-pin tssop, soic, and tdfn (2mmx2mm) packages, over commercial temperature range. application pcs3p73u00a is targeted for usb applications. refer to ssextr resistance table for usb2.0 compliance for commonly used frequencies. block diagram vdd ssextr fs gnd modout pll crystal oscillato r xin / clkin xout mr
pcs3p73u00a rev. 1 | page 2 of 12 | www.onsemi.com pin configuration fs 1 2 3 4 5 6 7 8 modout n / clkin ssextr vdd gnd mr pcs3p73u00a xout xi pin description pin # pin name pin type description 1 xin / clkin i crystal connection or external reference clock input. 2 xout o crystal connection. if using an external reference, this pin should be left open. 3 fs i frequency select.pull low to select low frequency range. selects high frequency range when pulled high. has an internal pull-up resistor ( see frequency selection table for details). 4 gnd p ground. 5 modout o buffered modulated clock output. 6 mr i modulation rate select. when low selects low modulation rate. selects high modulation rate when pulled high. has an internal pull-down resistor. 7 ssextr i analog spread selection through external resistor to gnd. 8 vdd p 3.3v / 2.5v supply voltage frequency selection table vdd(v) fs frequency (mhz) 0 10-20 2.5v 1 20-60 0 10-27 3.3v 1 20-70
pcs3p73u00a rev. 1 | page 3 of 12 | www.onsemi.com absolute maximum rating symbol parameter rating unit v dd voltage on any pin with respect to ground -0.5 to +4.6 v t stg storage temperature -65 to +125 c t s max. soldering temperature (10 sec) 260 c t j junction temperature 150 c t dv static discharge voltage (as per jedec std22- a114-b) 2 kv note: these are stress ratings only and are not implied for functional use. exposure to absolute maximum ratings for prolonged periods of time may affect device reliability. operating conditions parameter description min max unit v dd(3.3v) supply voltage 3.0 3.6 v v dd(2.5v) supply voltage 2.3 2.7 v t a operating temperature (amb ient temperature) 0 +70 c c l load capacitance 10 pf c in input capacitance 7 pf electrical characteristics for 3.3v supply voltage parameter description test conditions min typ max unit v dd supply voltage 3.0 3.3 3.6 v v il input low voltage 0.8 v v ih input high voltage 2.0 v i il input low current v in = 0v -50 a i ih input high current v in = v dd 50 a v ol output low voltage i ol = 8ma 0.4 v v oh output high voltage i oh = -8ma 2.4 v i cc static supply current xin / clkin pulled to gnd 750 a fs=0; @ 12mhz 8 i dd dynamic supply current unloaded outputs fs=1; @ 48mhz 12 ma z o output impedance 30
pcs3p73u00a rev. 1 | page 4 of 12 | www.onsemi.com switching characteristics for 3.3 supply voltage parameter test conditions min typ max unit fs=0 10 12 27 input frequency fs=1 20 48 70 fs=0 10 12 27 modout fs=1 20 48 70 mhz duty cycle 1,2 measured at v dd /2 45 50 55 % rise time 1,2 measured between 20% to 80% 1.1 ns fall time 1,2 measured between 80% to 20% 0.7 ns cycle-to-cycle jitter 1,2 loaded outputs 150 ps pll lock time 2 stable power supply, valid clock presented on xin / clkin pin 3 ms notes: 1. all parameters are specified with 10pf loaded outputs. 2. parameter is guaranteed by des ign and characterization. not 100% tested in production. electrical characteristics for 2.5v supply voltage parameter description test conditions min typ max unit v dd supply voltage 2.3 2.5 2.7 v v il input low voltage 0.7 v v ih input high voltage 1.7 v i il input low current v in = 0v -50 a i ih input high current v in = v dd 50 a v ol output low voltage i ol = 8ma 0.6 v v oh output high voltage i oh = -8ma 1.8 v i cc static supply current xin / clkin pulled to gnd 500 a fs=0; @ 12mhz 5 i dd dynamic supply current unloaded outputs fs=1; @ 48mhz 8 ma z o output impedance 40 switching characteristics for 2.5v supply voltage parameter test conditions min typ max unit fs=0 10 12 20 input frequency fs=1 20 48 60 fs=0 10 12 20 modout fs=1 20 48 60 mhz duty cycle 1,2 measured at v dd /2 45 50 55 % rise time 1,2 measured between 20% to 80% 1.6 ns fall time 1,2 measured between 80% to 20% 0.8 ns cycle-cycle jitter 1,2 loaded outputs 200 ps pll lock time 2 stable power supply, valid clock presented on xin / clkin pin 3 ms notes: 1. all parameters are specified with 10pf loaded outputs. 2. parameter is guaranteed by des ign and characterization. not 100% tested in production.
pcs3p73u00a rev. 1 | page 5 of 12 | www.onsemi.com r r1 = 510 ? cr y stal c1 = 27 p f c2 = 27 pf fig. 1: typical crystal interface circuit note: for ac coupled interface refer to application brief: ct100801. typical crystal specifications fundamental at cut parallel resonant crystal nominal frequency 48mhz frequency tolerance 50ppm or better at 25c operating temperature range -25c to +85c storage temperature -40c to +85c load capacitance 18pf shunt capacitance 7pf maximum esr 25 : r compliance the value of the compliance resistor, r compliance sets the usb2.0 signaling rate (frequency) deviation to 1000ppm peak-to-peak (+/-500ppm). it causes a -4db peak power emi reduction at the 480mhz fundamental usb2.0 frequency. higher harmonics are reduced more. if the r compliance is set to a lower valu e than its compliance limit, it will set the usb2.0 signaling rate (frequency) deviation to above 1000ppm peak-to-peak. for settings above 1000ppm the usb2.0 compliance pass/fail becomes gradually intermittent. usb2.0 functionality is maintained upto 3000ppm peak-to-peak signaling rate (frequency) deviation. the emi tradeoff in the system is attenuation/compliance. while fully functional (and compliant intermittent) the 2000ppm frequency deviation can provide -7db of emi attenuation at the 480mhz fundamental.
pcs3p73u00a rev. 1 | page 6 of 12 | www.onsemi.com deviation vs resistance (mr=0) 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 0 5 10 15 20 25 30 35 40 resistance (kohms) pk-pk deviation (ppm) 12mhz_fs=0 15mhz_fs=0 24mhz_fs=0 24mhz_fs=1 25mhz_fs=0 25mhz_fs=1 30mhz_fs=1 48mhz_fs=1 usb 2.0 compliance 480mhz fundamental frequency attenuation[db ] -4db -7db -2db deviation vs resistance (mr=1) 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 0 102030405060708090100 resistance (kohms) pk-pk deviation (ppm) 12mhz_fs=0 15mhz_fs=0 24mhz_fs=0 24mhz_fs=1 25mhz_fs=0 25mhz_fs=1 30mhz_fs=1 48mhz_fs=1 usb compliance 480mhz fundamental frequency attenuation[db ] -4db -7db -2db ssextr resistance table for usb2.0 compliance (r compliance ) vdd = 3.3v; mr = 0 frequency (mhz) fs (mhz) ssextr 1 resistance (k ? ) 12 0 10 15 0 8.87 0 6.81 24 1 13.7 0 6.98 25 1 13.7 30 1 12.1 48 1 10 vdd = 3.3v; mr = 1 frequency (mhz) fs (mhz) ssextr 1 resistance (k ? ) 12 0 17.8 15 0 13 0 6.49 24 1 39.2 0 6.49 25 1 35.7 30 1 29.4 48 1 19.1 vdd = 2.5v; mr = 0 frequency (mhz) fs (mhz) ssextr 1 resistance (k ? ) 12 0 10 15 0 8.87 24 1 13.7 25 1 13.7 30 1 12.1 48 1 10 vdd = 2.5v; mr = 1 frequency (mhz) fs (mhz) ssextr 1 resistance (k ? ) 12 0 17.8 15 0 13 24 1 39.2 25 1 35.7 30 1 29.4 48 1 19.1 fig. 3: deviation vs resistance for usb 2.0 com fig. 2: deviation vs resistance for usb 2.0 com p liance ( mr=1 ) p liance ( mr=0 ) note: 1. standard 1% tolerance resistors. device to device variation of deviation is 10%.
pcs3p73u00a rev. 1 | page 7 of 12 | www.onsemi.com fig. 4:eye diagram example (480mhz) computed from the usb-if test pattern duri ng usb2.0 compliance verification of an existing host phy asic clocked at 48mhz by pcs3p73u00a.
pcs3p73u00a rev. 1 | page 8 of 12 | www.onsemi.com fig. 5: emi radiated emission test circuit (requires usb phy asic, not shown here) p c s 3 p xin / clkin fig. 6: typical application circuit switching waveforms duty cycle timing output rise/fall time t 3 0v output t 4 vdd 20% 80% 20% 80% t 2 t 1 v dd /2 v dd / 2 v dd / 2 output xin / clkin xtal c l c l 7 3 u 0 0 a xout modout usb asic xout
pcs3p73u00a rev. 1 | page 9 of 12 | www.onsemi.com package information 8-lead tssop (4.40-mm body) e h a a1 a2 d b c l e dimensions inches millimeters symbol min max min max a 0.043 1.10 a1 0.002 0.006 0.05 0.15 a2 0.033 0.037 0.85 0.95 b 0.008 0.012 0.19 0.30 c 0.004 0.008 0.09 0.20 d 0.114 0.122 2.90 3.10 e 0.169 0.177 4.30 4.50 e 0.026 bsc 0.65 bsc h 0.252 bsc 6.40 bsc l 0.020 0.028 0.50 0.70 0 8 0 8
pcs3p73u00a rev. 1 | page 10 of 12 | www.onsemi.com 8-pin soic d e h d a1 a2 a l c b e dimensions inches millimeters symbol min max min max a1 0.004 0.010 0.10 0.25 a 0.053 0.069 1.35 1.75 a2 0.049 0.059 1.25 1.50 b 0.012 0.020 0.31 0.51 c 0.007 0.010 0.18 0.25 d 0.193 bsc 4.90 bsc e 0.154 bsc 3.91 bsc e 0.050 bsc 1.27 bsc h 0.236 bsc 6.00 bsc l 0.016 0.050 0.41 1.27 0 8 0 8
pcs3p73u00a rev. 1 | page 11 of 12 | www.onsemi.com tdfn (2mmx2mm) 8l package outline drawing dimensions inches millimeters symbol min max min max a 0.027 0.0315 0.70 0.80 a3 0.008 bsc 0.203 bsc b 0.008 0.012 0.20 0.30 d 0.079 bsc 2.00 bsc e 0.078 bsc 2.00 bsc e 0.020 bsc 0.50 bsc l 0.020 0.024 0.50 0.60 e 0.020 bsc 0.50 bsc l 0.020 0.024 0.50 0.60
pcs3p73u00a note: many on semiconductor products are protecte d by issued patents or applications for patent. on semiconductor and are registered trademarks of semiconductor components industries , llc (scillc). scillc reserves the right to make changes without further notice to any products herein. scillc makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does scillc assume any liabilit y arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incident al damages. ?typical? parameters which may be provided in scillc data sheets and/or specifications can and do vary in different applications and act ual performance may vary over time. all operating parameters, i ncluding ?typicals? must be validated for each customer application by customer's technica l experts. scillc does not convey any license under its patent r ights nor the rights of others. scillc products are not designed, intended, or authorized for use as components in systems intended for surgical implant into t he body, or other applications intended to support or sustain life, or for any other application in which the failure of the scillc product could create a sit uation where personal injury or death may occur. should buyer purchase or use scillc products for any such unintended or unauthorized application, buyer shall indem nify and hold scillc and its officers, employees, subsidiaries, affiliates, and distri butors harmless against all clai ms, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that scillc was negligent regarding the design or manufacture of the part. sci llc is an equal opportunity/affirmative action employer. u.s patent pending; timing-safe and active bead are trademarks of pulsecore semiconductor, a wholly owned subsidiary of on semiconductor. this literature is su bject to all applicable copyright laws and is not for resale in any manner. publication ordering information literature fulfillment: literature distribution center for on semiconductor p.o. box 5163, denver, colorado 80217 usa phone: 303-675-2175 or 800-344-3860 toll free usa/canada fax: 303-675-2176 or 800-344-3867 toll free usa/canada email: orderlit@onsemi.com n. american technical support: 800-282-9855 toll free usa/canada europe, middle east and africa technical support: phone: 421 33 790 2910 japan customer focus center phone: 81-3-5773-3850 on semiconductor website: www.onsemi.com order literature: http://www.onsemi.com/orderlit for additional information, please contact your local sales representative ordering code part number marking package temperature p3p73u00ag-08sr bml 8-pin soic, tape & reel, green 0c to +70c p3p73u00ag-08st bml 8-pin soic, tube, green 0c to +70c pcp73u00ag-08tr bml 8-pin tssop, tape & reel, green 0c to +70c p3p73u00ag-08tt bml 8-pin tsso p, tube, green 0c to +70c p3p73u00ag-08cr bm 8-pin tdfn (2mmx2mm),tape & reel, green 0c to +70c

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