p a w3502 a l l righ ts st ri ct l y res e rv ed an y p o r ti on in thi s p a p e r sh al l no t b e r e pr od uce d , c o p i e d o r tra n sf orm e d to a n y ot her f o rm s w ith ou t p e r m i s s i on . 1 p ix art ima g in g in c . PAW3502 usb opti cal mouse single chip general description th e paw 3502 is a cmo s pro cess op tical m o u s e sen s o r sin g l e ch ip w ith u s b i n terf ace th at serv es as a no n- mechanical m o tion estim ation engine f o r i m pl em ent i ng a c o m put er m ouse. features ? usb interface ? single p o wer supply ? optic a l mo tio n estim a ti on t echnol o g y ? com p lete 2 - d mo tion sens o r ? accur a te moti on es timation over a wide r a n g e of surfaces ? high speed m o ti on detec t ion up to 28 inc h es/sec ? power savin g mo d e durin g t i m e s o f n o movement ? supp orts thre e bu ttons (r, m, l) and thr ee axes (x , y, z) output ? z - axis su pp or t mec hanical input (z /2) ? usb s p ec. ? com p lete univers al serial bus spec s v 1 . 1 co mpa t ibility ? co mplete usb hid specs v1.1 compa t i b ility ? inte g rated usb transceive r and 1.5mbps usb serial inter f ac e engine key speci fi c a t i on power s uppl y wide operatin g su pply range 4. 25 v ~ 5. 5v inter f a c e u s b optic a l lens 1: 1 sys t em cl oc k 24 .0 0 0 mhz s p e e d 2 8 inches/sec a c c e l e r a t i o n 2 0 g resol u ti o n 4 0 0/ 8 0 0 / 1 00 0/ 12 0 0 c p i frame rate 3000 frame s /sec operating current 10ma @mouse moving (norma l) 5ma @mouse not moving (sleep) 480ua @usb suspend (suspend) pack a g e s h r u n k dip 1 4 ordering i n formation part number cpi paw 350 2d l 8 0 0 paw 350 2d l-td 4 0 0 paw 350 2d l-tk 1 200 e -ma il: fae _ se rvice@ pix a rt.c om .tw v0.2 d ec. 2006
pixart imag ing inc. PAW3502 usb optical mouse sensor single chip 1. pin configuration 2 1.1 pin description pin # nam e type definiti on 1 oscin in oscillato r i n put, con n ect ed t o reson a tor o r resisto r 2 bl i n bu tto n lef t k e y in pu t, no r m al p u ll-h i gh ( 50k ), pr ess conn ect to low 3 l e d o u t led c o n t r o l 4 v d d q bypa s s i/o v o ltage re f e r e n c e 5 v s s gn d chip gr o u n d 6 v dd5 v pw r ch ip po w e r vd d, 5 . 0 v 7 vd d a b y pa ss anal og v o l t a ge refe re nce 8 d + i / o usb d + 9 d - i / o usb d - 1 0 br in bu tto n righ t k e y in pu t, n o rm al pu ll-h i g h (5 0k), p r ess co nn ect to low 11 b m in b u t t o n m i ddl e key i n put , n o r m a l pul l - hi gh ( 5 0 k ) , pre ss c o n n ect t o l o w 12 z2 in z axis, s u pport m echanical scroller i n put 13 z1 in z axis, s u pport m echanical scroller i n put 1 4 oscout out oscillato r o u t pu t, co nn ected t o reson a tor 1.2 pin assignment lb rb + x + y 1 2 3 4 5 6 9 10 11 12 13 14 1 8 7 14 8 7 figur e 1. t o p v i ew pinout fi gur e 2. t o p v i ew of m o use a l l righ ts st ri ct l y res e rv ed an y p o r ti on in thi s p a p e r sh al l no t b e r e pr od uce d , c o p i e d o r tra n sf orm e d to a n y ot her f o rm s w ith ou t p e r m i s s i on . p ix art ima g in g in c . e -ma il: fae _ se rvice@ pix a rt.c om .tw v0.2 dec. 2006
pixart imag ing inc. PAW3502 usb optical mouse sensor single chip 2. block diagram and operation cmos im ag e se ns or digital sig n a l proc es s o r po w e r o n re set usb mouse cont roller debu nce led driver d+ d- os ci ll a t or voltage re g u la to r and pow e r co ntr o l br bl bm le d vdda vdd 5 v os c i n usb int e r f a c e button re so n a t o r vo ltag e re fe re n c e 5v po w e r z - axi s count er z1 z2 w h eel vss vddq 24 m h z o s cout fi gure 3. b l oc k di agr am th e paw 3502 sup por ts x, y , z thr ee ax es, an d l, r, m t h ree bu tto ns u nder u s b m o d e . i t is a cmos pr o cess o p tical m o u s e sen s o r sing le ch ip with usb in terface th at se rves as a non-mechani cal m o tion estim ation engine fo r i m pl em ent i ng a c o m put er m ouse. th e paw 3502 is in a 14 -p in o p tical pack age and co m e s w ith th e r e so l u tio n of 40 0 / 8 0 0 / 1 000 /12 0 0 coun ts p e r in ch (cpi) and th e rate o f m o ti o n up t o 2 8 in ch es p e r seco nd . it in cl u d e s usb in terface so t h at no m o u s e cont roller is ne eded to i n terfa ce through usb. the pa w3502 ca n receive comm and an d ec ho status or data form at, both com p le te uni v ers a l serial bus ? sp ec v1 .1 an d usb hid sp ec v1 .1 co m p ati b ility. it is also a cost effectiv e so l u tio n to supp ort usb m o u s e. a l l righ ts st ri ct l y res e rv ed an y p o r ti on in thi s p a p e r sh al l no t b e r e pr od uce d , c o p i e d o r tra n sf orm e d to a n y ot her f o rm s w ith ou t p e r m i s s i on . p ix art ima g in g in c . e -ma il: fae _ se rvice@ pix a rt.c om .tw v0.2 dec. 2006 3
pixart imag ing inc. PAW3502 usb optical mouse sensor single chip 3. specifica tions 4 3.1 absolute maximu m ratings exp o s ure to abso lu te m a x i m u m ratin g m a y affect d e v i ce rel i ab ility. s y m b o l p a r a m e t e r min. max. u n i t n o t e s t stg s t ora g e tem p e r at u r e -4 0 8 5 c t a o p e r at i n g tem p erat u r e -1 5 5 5 c lead sol d er t e m p 260 c for 10 seconds , 1.6 mm below seating plane. e s d 2 k v al l pi n s , h u m a n bo dy m odel m i l 88 3 m e t h od 3 015 v dc dc s u p p l y v o l t a ge -0 .5 5. 5 v v in dc i n put v o l t a ge -0 .5 5. 5 v al l i/ o pi n 3.2 recommend operating condition s y m b o l p a r a m e t e r m i n . t y p. max. u n i t n o t e s t a o p e r at i n g tem p erat u r e 0 4 0 c v dd po wer su p p l y vol t a ge 4. 25 5. 0 5. 5 v v n su ppl y noi s e 10 0 m v peak t o peak w i t h i n 0 - 8 0 m h z z distance from lens refere nce pla n e to surface 2. 3 2. 4 2. 5 m m r e fer t o fi gu re 4. r r e sol u t i o n 40 0 12 0 0 c p i a a c c e l e r a t i o n 2 0 g f clk c l ock fre que n c y 2 4 m h z f r f r a m e r a t e 3000 fram e s/sec s spee d 0 28 inches/sec 28 inc h es/sec @400cpi 20 inc h es/sec @800cpi 16 inc h es/sec @1000cpi 13 inc h es/sec @1200cpi a l l righ ts st ri ct l y res e rv ed an y p o r ti on in thi s p a p e r sh al l no t b e r e pr od uce d , c o p i e d o r tra n sf orm e d to a n y ot her f o rm s w ith ou t p e r m i s s i on . p ix art ima g in g in c . e -ma il: fae _ se rvice@ pix a rt.c om .tw v0.2 dec. 2006
pixart imag ing inc. PAW3502 usb optical mouse sensor single chip 4. z and 2d assembly 5 len s p a ckage l i d o b j e ct sur f ace z figure 4. dis t ance fr om le ns re ference plane to sur face led unit : m m s u rf ac e is 0 r e f . base pl ate alig nm en t po st se n s o r pcb cl ip pl as t i c spri n g base plat e esd len s ring +y +x figure 5. 2d assembl y a l l righ ts st ri ct l y res e rv ed an y p o r ti on in thi s p a p e r sh al l no t b e r e pr od uce d , c o p i e d o r tra n sf orm e d to a n y ot her f o rm s w ith ou t p e r m i s s i on . p ix art ima g in g in c . e -ma il: fae _ se rvice@ pix a rt.c om .tw v0.2 dec. 2006
pixart imag ing inc. PAW3502 usb optical mouse sensor single chip 5. usb interface 6 5.1 usb command set description ( usb descriptor ) the usb h o s t det ect s usb m ouse de vi ce pl u g -i n a n d ass i gns a new u n i que ad d r ess t o t h e u s b m ous e de vi ce, t h en a s ki ng u s b m ouse de vi ce f o r i n f o rm at ion ab o u t t h e de vi ce de scri pt i o n, c o nfi g u r at i o n descri pt i o n , a n d assi gni ng a c o nfi g u r at i o n v a l u e fo r usb m ouse de vi ce d u ri ng en um erat i on peri od . aft e r en um erat i on, t h e usb m o u s e d e v i ce is ab le t o tran sfer m o tio n an d b u tton v a lue to th e usb ho st. descripto r t y p e by te by te by te by te by te by t e b y t e b y te 1 2 0 1 1 0 0 1 0 0 0 0 0 0 0 8 3 a 0 9 1 0 2 5 0 0 0 1 0 1 0 2 devi ce desc ri pt o r ( 1 8 by t e s) 0 0 0 1 0 9 0 2 2 2 0 0 0 1 0 1 0 4 a 0 co nf igu r ation d e scr i p t or (9 bytes) 32 0 9 0 4 0 0 0 0 0 1 0 3 0 1 0 2 interface desc riptor (9 bytes) 0 0 0 9 2 1 1 0 0 1 0 0 0 1 2 2 3 e hum a n interfa ce de vice de s c riptor (9 by tes) 0 0 en dp oi nt desc ri pt o r (7 by t e s) 07 05 81 03 04 00 0a 0 5 0 1 0 9 0 2 a 1 0 1 0 5 0 9 1 9 0 1 2 9 0 3 1 5 0 0 2 5 0 1 9 5 0 3 7 5 0 1 8 1 0 2 9 5 0 1 7 5 0 5 8 1 0 3 0 5 0 1 0 9 0 1 a 1 0 0 0 9 3 0 0 9 3 1 1 5 8 1 2 5 7 f 7 5 0 8 9 5 0 2 8 1 0 6 c 0 0 9 3 8 1 5 8 1 2 5 7 f 7 5 hum a n interfa ce de vice report descri pt o r ( 6 2 by t e s, 3d 3b ) 0 8 9 5 0 1 8 1 0 6 c 0 a l l righ ts st ri ct l y res e rv ed an y p o r ti on in thi s p a p e r sh al l no t b e r e pr od uce d , c o p i e d o r tra n sf orm e d to a n y ot her f o rm s w ith ou t p e r m i s s i on . p ix art ima g in g in c . e -ma il: fae _ se rvice@ pix a rt.c om .tw v0.2 dec. 2006
pixart imag ing inc. PAW3502 usb optical mouse sensor single chip 5.2 usb data report format 7 the usb re po r t has t w o dat a f o rm at s, depe n d i ng o n bo ot or rep o rt p r ot ocol i s sel ect ed. o n e ki n d o f dat a f o rm at i s t h e bo ot pr ot ocol use d i n l e gacy en vi r o nm ent as 5. 2. 1. t h e ot he r ki n d o f dat a f o rm at i s usb re po rt pr ot oc ol fo rm at whi c h i n cl u d es z - whe e l m ovem e nt d a t a i n t h e f o u r t h by t e as 5. 2. 2. the z- w h eel i s m oved fo r w a r d t h e fo urt h by t e dat a i s 0 1 h , t h e z - w h eel i s m ove d back wa rd t h e fo urth b y te d a t a is ffh, and t h e z-wh eel is i d le th e fo urt h by t e dat a i s 0 0 h . 5.2.1 usb boot pr otocol for legacy operation b y t e b i t symb o l descripti o n 0 b l 1 = left but t o n p r esse d 1 b r 1 = r i ght b u t t o n press e d 2 b m 1 = m i ddl e b u t t on p r esse d 1 3 ~ 7 nc r e serve d 2 0 - 7 x0 ~ x 7 x d a ta (d0 - d7 ). a po sitiv e v a lu e i n d i cates m o tio n to t h e righ t; a n e g a tive v a lu e in d i cates m o tio n to th e left. bi t 0 = lsb. 3 0 - 7 y0 ~ y 7 y d a ta (d0 - d7 ). a po sitiv e v a lu e i n d i cates d e v i ce m o tio n up ward ; a n e gativ e val u e i ndi cat es m o t i on d o w n war d . b i t 0 = lsb . 5.2.2 usb report pr otocol b y t e b i t symb ol descripti o n 0 b l 1 = left but t o n p r esse d 1 b r 1 = r i ght b u t t o n press e d 2 b m 1 = m i ddl e b u t t on p r esse d 3 b 4 reserv ed 4 b 5 reserv ed 1 5 ~ 7 nc r e serve d 2 0 - 7 x0 ~ x 7 x d a ta (d0 - d7 ). a po sitiv e v a lu e i n d i cates m o tio n to t h e righ t; a n e g a tive v a lu e in d i cates m o tio n to th e left. bi t 0 = lsb. 3 0 - 7 y0 ~ y 7 y d a ta (d0 - d7 ). a po sitiv e v a lu e i n d i cates d e v i ce m o tio n up ward ; a n e gativ e val u e i ndi cat es m o t i on d o w n war d . b i t 0 = lsb . 4 0 - 7 z0 ~ z7 z-wh eel m o tio n d a ta (d0 - d7 ). a po sitiv e v a lu e i n d i cates d e v i ce m o tio n do w n wa rd; a n e gat i v e val u e i ndi cat es m o t i on up wa rd . t h e z0 - z 7 l i m it val u e i s 7. bit 0 = lsb. a l l righ ts st ri ct l y res e rv ed an y p o r ti on in thi s p a p e r sh al l no t b e r e pr od uce d , c o p i e d o r tra n sf orm e d to a n y ot her f o rm s w ith ou t p e r m i s s i on . p ix art ima g in g in c . e -ma il: fae _ se rvice@ pix a rt.c om .tw v0.2 dec. 2006
pixart imag ing inc. PAW3502 usb optical mouse sensor single chip 6. refer e ncing application cir c uit + c2 10uf u1 pa w3502 3 7 4 8 9 2 5 6 10 11 12 13 1 14 le d v dda v ddq d+ d- bl vs s v dd5 v br bm z2 z1 os c i n o s c ou t c7 27 pf + c3 1uf vdd_5v r5 3 3 y1 24m hz jp 1 us b c a b l e 1 2 3 4 5 r4 3 3 c6 27p f + c4 1uf bm *r 2 r1 d1 le d c1 0. 1uf note: *r2 and *r3 are reserved for future use. c5 0 . 1uf *r 3 br en sw 1 z2 z1 co m vdd_5v bl vdd_5v fig u re 6 . applica t io n c i rcui t fo r PAW3502 a l l righ ts st ri ct l y res e rv ed an y p o r ti on in thi s p a p e r sh al l no t b e r e pr od uce d , c o p i e d o r tra n sf orm e d to a n y ot her f o rm s w ith ou t p e r m i s s i on . p ix art ima g in g in c . e -ma il: fae _ se rvice@ pix a rt.c om .tw v0.2 dec. 2006 8
pixart imag ing inc. PAW3502 usb optical mouse sensor single chip 7. package information 9 7.1 package outline draw ing 9 10 11 23 4 5 6 1 3 . 208 0.52 0 0. 457 0. 018 1. 77 8 0. 07 0 5. 33 4 0. 21 0 0.8 0 0.031 5.6 0 . 220 5 . 080 0 . 200 6.604 0.260 1 234 5 6 9 10 11 12 1 4.55 0. 1 7 9 7.874 0.310 1. 42 0.056 10.16 0.400 5. 0 8 0. 20 0 1.0 2 0. 040 0. 2 5 4 0. 0 1 0 3.20 0.12 6 notes : 1. a l l d i mensi o n s i n mm/ i nch. 2. a ll d i mension s tolerance : + / - 0.10 m m 3. max m umflas h : +0.2mm 4. 06 4 0. 16 0 12 8 13 14 7 7 8 13 14 ma x . 12 14.22 +/- 0 . 2 0. 560 +/- 0 . 0 0 7 9 figure 7. pac k age outline drawing a l l righ ts st ri ct l y res e rv ed an y p o r ti on in thi s p a p e r sh al l no t b e r e pr od uce d , c o p i e d o r tra n sf orm e d to a n y ot her f o rm s w ith ou t p e r m i s s i on . p ix art ima g in g in c . e -ma il: fae _ se rvice@ pix a rt.c om .tw v0.2 dec. 2006
pixart imag ing inc. PAW3502 usb optical mouse sensor single chip 7.2 recommended pcb mechanical cutouts and spacing 9. 068 0. 357 7. 5 4 4 0. 2 9 7 10.221 0 . 402 1. 19 0. 04 7 16.942 0 . 667 6. 9 8 5 0. 2 7 5 back side 8. 8 9 0. 35 0 27 .9 4 1. 1 0 0 1 . 778 0 . 070 3. 2 5 1 0. 12 8 4. 0 4 6 0. 1 6 0 1 2 . 877 0 . 507 7 23 4 5 6 8 13 12 11 10 9 1 14 0 . 711 0 . 028 0. 71 1 0. 02 8 all d i mension : mm/ i nch figure 8. rec o mmended p c b mech anic al cutouts and spacing 8. update history versio n u p d a t e da t e v0.1 creatio n , prelimin ary 1 st ve rsi o n 1 0 / 11/ 20 0 6 v0 .2 m odi fy r e fere nci n g ap pl i cat i on c i rc ui t 12/ 28/ 20 0 6 a l l righ ts st ri ct l y res e rv ed an y p o r ti on in thi s p a p e r sh al l no t b e r e pr od uce d , c o p i e d o r tra n sf orm e d to a n y ot her f o rm s w ith ou t p e r m i s s i on . p ix art ima g in g in c . e -ma il: fae _ se rvice@ pix a rt.c om .tw v0.2 dec. 2006 10
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