? semiconductor components industries, llc, 2011 august, 2011 ? rev. 3 1 publication order number: p1707a/d p1707a notebook lcd panel emi reduction ic description the p1707a is a versatile spread spectrum frequency modulator designed specifically for input clock frequencies. the p1707a reduces electromagnetic interference (emi) at the clock source, allowing system wide reduction of emi of down stream clock and data dependent signals. the p1707a allows significant system cost savings by reducing the number of circuit board layers, ferrite beads, shielding, and other passive components that are traditionally required to pass emi regulations. the p1707a modulates the output of a single pll in order to ?spread? the bandwidth of a synthesized clock, and more importantly, decreases the peak amplitudes of its harmonics. this results in significantly lower system emi compared to the typical narrow band signal produced by oscillators an d most frequency generators. lowering emi by increasing a signal?s bandwidth is called ?spread spectrum clock generation.? the p1707a uses the most efficient and optimized modulation profile approved by the fcc and is implemented in a proprietary all digital method. applications the p1707a is targeted towards notebook lcd displays, and other displays using an lvds interface, pc peripheral devices, and embedded systems. features ? fcc approved method of emi attenuation ? generates a low emi spread spectrum clock of the input frequency ? optimized for frequency range from 40 mhz to 175 mhz ? internal loop filter minimizes external components and board space ? four selectable spread ranges ? low inherent cycle ? to ? cycle jitter ? 3.3 v operating voltage ? ultra ? low power cmos design ? 14.85 ma @ 3.3 v, 140 mhz ? 16.69 ma @ 3.3 v, 162 mhz ? 17.78 ma @ 3.3 v, 175 mhz ? supports notebook vga and other lcd timing controller applications ? pinout compatible to ics mk1707 and cypress cy25561 / cy25560 ? sson / sbm pin for spread spectrum on/off and standby mode controls ? available in 8 ? pin soic and tssop packages ? these are pb ? free devices http://onsemi.com soic ? 8 s suffix case 751bd pin configuration (top view) see detailed ordering and shipping information in the package dimensions section on page 6 of this data sheet. ordering information nc sr0 sr1 sson/sbm vdd vss clkin 1 modout tssop ? 8 t suffix case 948al
p1707a http://onsemi.com 2 figure 1. block diagram vss vdd pll clkin modout vco loop filter phase detector sr0 sr1 sson / sbm modulation feedback divider frequency divider output divider table 1. pin description pin# pin name type description 1 clkin i connect to externally generated clock signal. to put the part into standby mode, disable the input clock signal to this pin and pull sson/sbm (pin 5) low. refer to standby mode selection table . 2 vdd p connect to +3.3 v. (place a decoupling 0.1 f close to pin and ground.) 3 vss p ground connection. connect to system ground. 4 modout o spread spectrum clock output. 5 sson / sbm i spread spectrum on/off and standby mode control. refer to standby mode selection table. this pin has an internal pull ? up resistor. 6 sr1 i digital logic input used to select spreading range. refer to spread spectrum selection table. this pin has an internal pull ? up resistor. 7 sr0 i digital logic input used to select spreading range. refer to spread spectrum selection table. this pin has an internal pull ? up resistor. 8 nc ? no connect. table 2. standby mode selection clkin sson / sbm spread spectrum modout pll mode disabled 0 n/a disabled disabled standby disabled 1 n/a disabled free running free running enabled 0 off reference disabled buffer out enabled 1 on normal normal normal table 3. spread range selection sr1 sr0 spreading range modulation rate 0 0 1.50% (f in /80) * 34.72 khz 0 1 2.50% (f in /80) * 34.72 khz 1 0 0.50% (f in /80) * 34.72 khz 1 1 1.00% (f in /80) * 34.72 khz
p1707a http://onsemi.com 3 table 4. absolute maximum ratings symbol parameter rating unit vdd, v in voltage on any pin with respect to ground ? 0.5 to +4.6 v t stg storage temperature ? 65 to +125 c t a operating temperature ? 40 to +85 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 stresses exceeding maximum ratings may damage the device. maximum ratings are stress ratings only. functional operation above t he recommended operating conditions is not implied. extended exposure to stresses above the recommended operating conditions may af fect device reliability. table 5. dc electrical characteristics symbol parameter min typ max unit v il input low voltage vss ? 0.3 0.8 v v ih input high voltage 2.0 vdd+0.3 v i il input low current (pull ? up resistors on inputs sr0, sr1 and sson / sbm) ? 35 a i ih input high current 35 a i xol x out output low current (v xol @ 0.4 v, vdd = 3.3 v) 3 ma i xoh x out output high current (v xoh @ 2.5 v, vdd = 3.3 v) 3 ma v ol output low voltage vdd = 3.3 v, i ol = 20 ma 0.4 v v oh output high voltage vdd = 3.3 v, i oh = 20 ma 2.5 v i cc dynamic supply current normal mode 3.3 v and 10 pf loading 8.46 12 17.78 ma i dd static supply current standby mode 0.6 ma vdd operating voltage 2.7 3.3 3.7 v t on power up time (first locked clock cycle after power up) 0.18 ms z out clock output impedance 20 table 6. ac electrical characteristics symbol parameter min typ max unit f in input frequency 40 175 mhz f out output frequency 40 175 mhz t lh (note 1) output rise time (measured from 0.8 v to 2.0 v) 0.7 0.9 1.1 ns t hl (note 1) output fall time (measured from 2.0 v to 0.8 v) 0.6 0.8 1.0 ns t jc jitter (cycle ? to ? cycle) ? ? 360 ps t d output duty cycle 45 50 55 % 1. t lh and t hl are measured into a capacitive load of 15 pf.
p1707a http://onsemi.com 4 package dimensions tssop8, 4.4x3 case 948al ? 01 issue o e1 e a2 a1 e b d c a top view side view end view 1 l1 l notes: (1) all dimensions are in millimeters. angles in degrees. (2) complies with jedec mo-153. symbol min nom max a a1 a2 b c d e e1 e l1 0o 8o l 0.05 0.80 0.19 0.09 0.50 2.90 6.30 4.30 0.65 bsc 1.00 ref 1.20 0.15 1.05 0.30 0.20 0.75 3.10 6.50 4.50 0.90 0.60 3.00 6.40 4.40
p1707a http://onsemi.com 5 package dimensions soic 8, 150 mils case 751bd ? 01 issue o e1 e a a1 h l c e b d pin # 1 identification top view side view end view notes: (1) all dimensions are in millimeters. angles in degrees. (2) complies with jedec ms-012. symbol min nom max a a1 b c d e e1 e h 0o 8o 0.10 0.33 0.19 0.25 4.80 5.80 3.80 1.27 bsc 1.75 0.25 0.51 0.25 0.50 5.00 6.20 4.00 l 0.40 1.27 1.35
p1707a http://onsemi.com 6 table 7. ordering information part number marking package type qty per reel temperature p1707af ? 08st p1707af 8 ? pin soic, tube, pb ? free commercial p1707af ? 08sr p1707af 8 ? pin soic, tape & reel, pb ? free 2500 commercial p1707af ? 08tt p1707af 8 ? pin tssop, tube, pb ? free commercial p1707af ? 08tr p1707af 8 ? pin tssop, tape and reel, pb ? free 2500 commercial p1707ag ? 08st p1707ag 8 ? pin soic, tube, green commercial p1707ag ? 08sr p1707ag 8 ? pin soic, tape & reel, green 2500 commercial p1707ag ? 08tt p1707ag 8 ? pin tssop, tube, green commercial p1707ag ? 08tr p1707ag 8 ? pin tssop, tape and reel, green 2500 commercial on semiconductor and are registered trademarks of semiconductor components industries, llc (scillc). scillc reserves the right to mak e changes without further notice to any products herein. scillc makes no warranty, representation or guarantee regarding the suitability of its products for an y particular purpose, nor does scillc assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including wi thout limitation special, consequential or incidental damages. ?typical? parameters which may be provided in scillc data sheets and/or specifications can and do vary in different application s and actual performance may vary over time. all operating parameters, including ?typicals? must be validated for each customer application by customer?s technical experts. scillc does not convey any license under its patent rights nor the rights of others. scillc products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the 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 indemnify and hold scillc and its of ficers, employees, subsidiaries, af filiates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, direct ly 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. scillc is an equal opportunity/affirmative action employer. this literature is subject to all applicable copyright laws and is not for resale in any manner. p1707a/d publication ordering information 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 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 on semiconductor website : www.onsemi.com order literature : http://www.onsemi.com/orderlit for additional information, please contact your local sales representative
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