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1 rating value units power sup ply and all in put/out put pins -0.3 to +4.0 v non-operating case tem per a ture -50 to +100 o c sol dering tem per a ture (10 sec onds) 250 o c characteristic sym notes minimum typical maximum units op er ating fre quency range f o 403.35 403.65 mhz fre quency drift, -10 to 45 o c, 2.2 to 3.7 vdc 100 ppm mod u la tion type ook/ask ook data rate 30 kbps ask data rate 115.2 kbps re ceiver per for mance, high sen si tiv ity mode sen si tiv ity, 2.4 kbps, 10-3 ber, am test method 1 -109 dbm sen si tiv ity, 2.4 kbps, 10-3 ber, pulse test method 1 -103 dbm cur rent, 2.4 kbps (r pr = 330 k) 2 3.0 ma sen si tiv ity, 19.2 kbps, 10-3 ber, am test method 1 -105 dbm sen si tiv ity, 19.2 kbps, 10-3 ber, pulse test method 1 -99 dbm cur rent, 19.2 kbps (r pr = 330 k) 2 3.1 ma sen si tiv ity, 115.2 kbps, 10-3 ber, am test method 1 -101 dbm sen si tiv ity, 115.2 kbps, 10-3 ber, pulse test method 1 -95 dbm cur rent, 115.2 kbps 3.8 ma re ceiver per for mance, low current mode sen si tiv ity, 2.4 kbps, 10-3 ber, am test method 1 -104 dbm sen si tiv ity, 2.4 kbps, 10-3 ber, pulse test method 1 -98 dbm cur rent, 2.4 kbps (r pr = 1100 k) 2 1.8 ma re ceiver out-of-band re jec tion, 5% f o r 5% 3 80 db elec tri cal char ac ter is tics (typ i cal val ues given for 3.0 vdc power sup ply, 25 o c) ab so lute max i mum rat ings de signed for short-range wire less med i cal data com mu ni ca tions sup ports rf data trans mis sion rates up to 115.2 kbps 3 v, low cur rent op er a tion plus sleep mode TR3005 403.50 mhz hybrid transceiver the TR3005 ul tra-miniature hy brid trans ceiver is ideal for short-range wire less med i cal data ap - pli ca tions where ro bust op er a tion, small size, low power con sump tion and low cost are re qu ired. the TR3005 em ploys rfm?s am pli fier-sequenced hy brid (ash) ar chi tec ture to achieve this unique blend of char ac teristics. all crit i cal rf func tions are con tained in the hy brid, sim pli fy ing and speed ing de sign-in. the re ceiver sec tion of the TR3005 is sen si tive and sta ble. a wide d y - namic range log de tec tor, in com bi na tion with dig i tal agc and a com pound data slicer, pro v ide ro bust per for mance in the pres ence of on-channel in ter fer ence or noise. two stages of saw fi l - ter ing pro vide ex cel lent re ceiver out-of-band re jec tion. the trans mit ter in cludes pro vi sions for both on-off keyed (ook) and amplitude-shift keyed (ask) mod u la tion. the trans mit ter em ploys saw fil ter ing to sup press out put har mon ics.
2 elec tri cal char ac ter is tics (typ i cal val ues given for 3.0 vdc power sup ply, 25 o c) 3 4 5 6 7 9 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 9 a s h t r a n s c e i v e r p i n o u t r f i o 8 2 1 0 2 0 1 1 8 l p f a d j r r e f t h l d 2 a g c c a p p k d e t b b o u t c m p i n r x d a t a t x m o d t h l d 1 p r a t e p w i d t h g n d 1 v c c 1 g n d 2 v c c 2 g n d 3 c n t r l 0 c n t r l 1 notes: 1. typ i cal sen si tiv ity data is based on a 10 -3 bit er ror rate (ber), us ing dc-balanced data. there are two test meth ods com monly used to mea sure ook/ask re ceiver sen si tiv ity, the ?100% am? test method and the ?pulse? test method. s en si tiv ity data is given for both test meth - ods. see ap pen dix 3.8 in the ash trans ceiver de signer?s guide for the de tails of each test meth od, and for sen si tiv ity curves for a 2.2 to 3.7 v sup ply voltage range at five op er at ing tem per a tures. the ap pli ca tion/test circuit a nd com po nent val ues are shown on the next page and in the de signer?s guide . 2. at low data rates it is pos si ble to ad just the ash pulse gen er a tor to trade-off some re c eiver sen si tiv ity for lower op er at ing cur rent. sen si tiv - ity data and re ceiver cur rent are given at 2.4 kbps for both high sen si tiv ity op er a tion (r pr = 330 k) and low cur rent op er a tion (r pr = 1100 k). 3. data is given with the ash ra dio matched to a 50 ohm load. matching com po nent val ues are gi ven on the next page. 4. see ta ble 1 on page 8 for ad di tional in for ma tion on ash ra dio event tim ing. characteristic sym notes minimum typical maximum units trans mit ter performance peak rf out put power, 250 a txmod current p o 3 0 dbm peak cur rent, 250 a txmod current i tp 3 7.5 ma 2 nd - 4 th har monic out put 3 -50 dbm 5 th - 10 th har monic out puts 3 -55 dbm non-harmonic spu ri ous outputs 3 -55 dbm ook turn on/turn off times t on /t off 4 12/6 s ask out put rise/fall times t tr /t tf 4 1.1/1.1 s sleep mode current i s 0.7 a power sup ply volt age range v cc 2.2 3.7 vdc power sup ply volt age ripple 10 mv p-p am bi ent op er ating tem per a ture t a -10 55 o c s m-20h p ackag e d ra w i ng c d e f g a b h di men sion mm inches min nom max min nom max a 9.881 10.033 10.135 .389 .395 .400 b 6.731 6.858 6.985 .265 .270 .275 c 1.778 1.930 2.032 .070 .076 .080 d 1.651 1.778 1.905 .065 .070 .075 e 0.381 0.508 0.635 .015 .020 .025 f 0.889 1.016 1.143 .035 .040 .045 g 3.175 3.302 3.429 .0125 .130 .135 h 1.397 1.524 1.651 .055 .060 .065
item sym bol ook ook ask units notes en coded data rate dr nom 2.4 19.2 115.2 kbps see pages 1 & 2 min i mum signal pulse sp min 416.67 52.08 8.68 s sin gle bit max i mum sig nal pulse sp max 1666.68 208.32 34.72 s 4 bits of same value agccap ca pac i tor c agc - - 2200 pf 10% ce ramic pkdet ca pac i tor c pkd - - 0.001 f 10% ce ramic bbout ca pac i tor c bbo 0.1 0.015 0.0027 f 10% ce ramic bbout re sis tor r bbo 12 0 0 k 5% lpfaux ca pac i tor c lpf 0.0047 - - f 5% txmod re sis tor r txm 8.2 8.2 8.2 k 5%, for 0 dbm out put lpfadj re sis tor r lpf 330 100 15 k 5% rref re sis tor r ref 100 100 100 k 1% thld2 re sis tor r th2 - - 100 k 1%, for 6 db be low peak thld1 re sis tor r th1 0 0 10 k 1%, typical values prate re sis tor r pr 330 330 160 k 5% pwidth re sis tor r pw 270 to gnd 270 to gnd 1000 to vcc k 5% dc by pass ca pac i tor c dcb 4.7 4.7 4.7 f tantalum rf by pass ca pac i tor 1 c rfb1 100 100 100 pf 5% npo rf by pass ca pac i tor 2 c rfb2 100 100 100 pf 5% npo rf by pass bead l rfb fair-rite fair-rite fair-rite vendor 2506033017yo or equivalent series tuning in duc tor l at 56 56 56 nh 50 ohm an tenna shunt tuning/esd inductor l esd 220 220 220 nh 50 ohm an tenna 3 m o d u l a t i o n i n p u t d a t a o u t p u t t o p v i e w g n d 3 c n t r l 0 c n t r l 1 p w i d t h p r a t e t h l d 1 t h l d 2 r r e f g n d 2 t x m o d r x d a t a l p f a d j c m p i n b b o u t p k d e t a g c c a p v c c 1 v c c 2 r f i o g n d 1 + 3 v d c a s h t r a n s c e i v e r a p p l i c a t i o n c i r c u i t o o k c o n f i g u r a t i o n 1 2 0 2 3 4 5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 + 3 v d c r p w r p r r t h 1 r r e f r l p f r t x m c b b o c r f b 2 c d c b l a t l e s d c r f b 1 l r f b + t / r c l p f r b b o m o d u l a t i o n i n p u t d a t a o u t p u t t o p v i e w g n d 3 c n t r l 0 c n t r l 1 p w i d t h p r a t e t h l d 1 t h l d 2 r r e f g n d 2 t x m o d r x d a t a l p f a d j c m p i n b b o u t p k d e t a g c c a p v c c 1 v c c 2 r f i o g n d 1 + 3 v d c a s h t r a n s c e i v e r a p p l i c a t i o n c i r c u i t a s k c o n f i g u r a t i o n 1 2 0 2 3 4 5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 + 3 v d c t r m o d e c o n t r o l r p w r p r r t h 1 r t h 2 r r e f r l p f r t x m c b b o c p k d c a g c c r f b 2 c d c b l a t l e s d c r f b 1 l r f b + trans ceiver set-up, 3.0 vdc, -40 to +85 0 c caution: elec tro static sen si tive de vice. ob serve pre cau tions when han dling.
4 ash transceiver theory of operation in tro duc tion rfm?s am pli fier-sequenced hy brid (ash) trans ceiver is spe cif i cally de signed for short-range wire less data com mu ni ca tion ap pli ca tions. the trans ceiver pro vides ro bust op er a tion, very small size, low power con sump tion and low im ple men ta tion cost. all crit i cal rf func tions are con tained in the hy brid, sim pli fy ing and speed ing de - sign-in. the ash trans ceiver can be readily con fig ured to sup port a wide range of data rates and pro to col re quire ments. the trans ceiver fea tures ex cel lent sup pres sion of trans mit ter har mon ics and vir tu ally no rf emis sions when re ceiv ing, mak ing it easy to cer tify to short- range (unli censed) ra dio reg u la tions. am pli fier-sequenced re ceiver op er a tion the ash trans ceiver?s unique fea ture set is made pos si ble by its sys tem ar chi tec ture. the heart of the trans ceiver is the am pli fier- sequenced re ceiver sec tion, which pro vides more than 100 db of sta ble rf and de tec tor gain with out any spe cial shield ing or de - coup ling pro vi sions. sta bil ity is achieved by dis trib ut ing the to tal rf gain over time . this is in con trast to a super het ero dyne re ceiver, which achieves sta bil ity by dis trib ut ing to tal rf gain over mul ti ple fre quen cies. fig ure 1 shows the ba sic block di a gram and tim ing cy cle for an am - pli fier-sequenced re ceiver. note that the bias to rf am pli fi ers rfa1 and rfa2 are in de pend ently con trolled by a pulse gen er a tor, and that the two am pli fi ers are cou pled by a sur face acous tic wave (saw) de lay line, which has a typ i cal de lay of 0.5 s. an in com ing rf sig nal is first fil tered by a nar row-band saw fil ter, and is then ap plied to rfa1. the pulse gen er a tor turns rfa1 on for 0.5 s. the am pli fied sig nal from rfa1 emerges from the saw de lay line at the in put to rfa2. rfa1 is now switched off and rfa2 is switched on for 0.55 s, am pli fy ing the rf sig nal fur ther. the on time for rfa2 is usu ally set at 1.1 times the on time for rfa1, as the fil ter ing ef fect of the saw de lay line stretches the sig - nal pulse from rfa1 some what. as shown in the tim ing di a gram, rfa1 and rfa2 are never on at the same time, as sur ing ex cel lent re ceiver sta bil ity. note that the nar row-band saw fil ter elim i nates sam pling side band re sponses out side of the re ceiver passband, and the saw fil ter and de lay line act to gether to pro vide very high re - ceiver ul ti mate re jec tion. am pli fier-sequenced re ceiver op er a tion has sev eral in ter est ing char - ac ter is tics that can be ex ploited in sys tem de sign. the rf am pli fi ers in an am pli fier-sequenced re ceiver can be turned on and off al most in stantly, al low ing for very quick power-down (sleep) and wake-up times. also, both rf am pli fi ers can be off be tween on se quences to trade-off re ceiver noise fig ure for lower av er age cur rent con sump - tion. the ef fect on noise fig ure can be mod eled as if rfa1 is on con tin u ously, with an at tenu ator placed in front of it with a loss equiv a lent to 10*log 10 (rfa1 duty fac tor), where the duty fac tor is the av er age amount of time rfa1 is on (up to 50%). since an amplifier-sequenced re ceiver is in her ently a sam pling re ceiver, the over all cy cle time be tween the start of one rfa1 on se quence and a s h r e c e i v e r b l o c k d i a g r a m & t i m i n g c y c l e a n t e n n a p u l s e g e n e r a t o r s a w d e l a y l i n e s a w f i l t e r r f a 1 r f a 2 d a t a o u t d e t e c t o r & l o w - p a s s f i l t e r r f d a t a p u l s e p 1 p 2 r f a 1 o u t r f i n p u t p 1 d e l a y l i n e o u t p 2 t p w 2 t p w 1 t p r i t p r c figure 1
5 the start of the next rfa1 on se quence should be set to sam ple the nar row est rf data pulse at least 10 times. oth er wise, sig nif i cant edge jit ter will be added to the de tected data pulse. ash trans ceiver block di a gram fig ure 2 is the gen eral block di a gram of the ash trans ceiver. please re fer to fig ure 2 for the fol low ing dis cus sions. an tenna port the only ex ter nal rf com po nents needed for the trans ceiver are the an tenna and its match ing com po nents. an tennas pre sent ing an im ped ance in the range of 35 to 72 ohms re sis tive can be sat is fac to - rily matched to the rfio pin with a se ries match ing coil and a shunt match ing/esd pro tec tion coil. other an tenna im ped ances can be matched us ing two or three com po nents. for some im ped ances, two in duc tors and a ca pac i tor will be re quired. a dc path from rfio to ground is required for esd pro tec tion. re ceiver chain the out put of the saw fil ter drives am pli fier rfa1. this am pli fier in - cludes pro vi sions for de tect ing the on set of sat u ra tion (agc set), and for switch ing be tween 35 db of gain and 5 db of gain (gain se - lect). agc set is an in put to the agc con trol func tion, and gain se - lect is the agc con trol func tion out put. on/off con trol to rfa1 (and rfa2) is gen er ated by the pulse gen er a tor & rf amp bias func tion. the out put of rfa1 drives the saw de lay line, which has a nom i nal de lay of 0.5 s. the sec ond am pli fier, rfa2, pro vides 51 db of gain be low sat u ra - tion. the out put of rfa2 drives a full-wave de tec tor with 19 db of thresh old gain. the on set of sat u ra tion in each sec tion of rfa2 is de tected and summed to pro vide a log a rith mic re sponse. this is added to the out put of the full-wave de tec tor to pro duce an over all de tec tor re sponse that is square law for low sig nal lev els, and tran - si tions into a log re sponse for high sig nal lev els. this com bi na tion pro vides ex cel lent thresh old sen si tiv ity and more than 70 db of detector dy namic range. in com bi na tion with the 30 db of agc range in rfa1, more than 100 db of re ceiver dy namic range is achieved. the de tec tor out put drives a gyrator fil ter. the fil ter pro vides a three-pole, 0.05 de gree equiripple low-pass re sponse with ex cel lent group de lay flat ness and min i mal pulse ring ing. the 3 db band width of the fil ter can be set from 4.5 khz to 1.8 mhz with an ex ter nal re - sis tor. the fil ter is fol lowed by a base-band am pli fier which boosts the de - tected sig nal to the bbout pin. when the re ceiver rf am pli fi ers are op er at ing at a 50%-50% duty cy cle, the bbout sig nal changes about 10 mv/db, with a peak-to-peak sig nal level of up to 685 mv. for lower duty cy cles, the mv/db slope and peak-to-peak sig nal level are pro por tion ately less. the de tected sig nal is rid ing on a 1.1 vdc level that var ies some what with sup ply volt age, tem per a - ture, etc. bbout is cou pled to the cmpin pin or to an ex ter nal data re cov ery pro cess (dsp, etc.) by a se ries ca pac i tor. the cor rect value of the se ries ca pac i tor de pends on data rate, data run length, and other fac tors as dis cussed in the ash trans ceiver de signer?s guide. when an ex ter nal data re cov ery pro cess is used with agc, bbout must be cou pled to the ex ter nal data re cov ery pro cess and cmpin by sep a rate se ries cou pling ca pac i tors. the agc re set func tion is driven by the sig nal ap plied to cmpin. when the trans ceiver is placed in power-down (sleep) or in a trans - mit mode, the out put im ped ance of bbout be comes very high. this fea ture helps pre serve the charge on the cou pling ca pac i tor to min i - mize data slicer sta bi li za tion time when the trans ceiver switches back to the re ceive mode. data slicers the cmpin pin drives two data slic ers, which con vert the an a log sig nal from bbout back into a digital stream. the best data slicer choice de pends on the sys tem op er at ing pa ram e ters. data slicer ds1 is a ca pac i tively-coupled com para tor with pro vi sions for an ad - just able thresh old. ds1 pro vides the best per for mance at low a s h t r a n s c e i v e r b l o c k d i a g r a m r f a 1 r f a 2 t x a 1 t x a 2 s a w d e l a y l i n e s a w c r f i l t e r l o g a n t e n n a r f i o t u n i n g / e s d d e t e c t o r l o w - p a s s f i l t e r b b a g c c o n t r o l p e a k d e t e c t o r p u l s e g e n e r a t o r & r f a m p b i a s l p f a d j p r a t e p w i d t h r x d a t a txm o d cn trl1 cn tr l0 a gccap r ref thld2 thld1 modu lat i on & b i as cont rol p o w e r d o w n c o n t r o l g a i n s e l e c t a g c s e t a g c r e s e t t h r e s h o l d c o n t r o l b b o u t ds2 ds1 and d b b el ow p eak th l d ref t h l d pk det ref agc c bb o c pk d r lpf c ag c r p r r p w r th2 r th1 r t xm 20 8 17 18 14 15 3 9 5 6 4 7 13 11 12 vcc1: pi n 2 vcc2: pi n 16 gnd 1 : p i n 1 gnd 2 : p i n 10 gnd 3 : p i n 19 rref: pi n 11 cm pi n : pi n 6 t x i n t u n i n g figure 2
sig nal-to-noise con di tions. the thresh old, or squelch, off sets the com para tor?s slic ing level from 0 to 90 mv, and is set with a re sis tor be tween the rref and thld1 pins. this thresh old al lows a trade- off be tween re ceiver sen si tiv ity and out put noise den sity in the no-signal con di tion. for best sen si tiv ity, the thresh old is set to 0. in this case, noise is out put con tin u ously when no sig nal is pres ent. this, in turn, re quires the cir cuit be ing driven by the rxdata pin to be able to pro cess noise (and sig nals) con tin u ously. this can be a prob lem if rxdata is driv ing a cir cuit that must ?sleep? when data is not pres ent to con serve power, or when it its nec es sary to min i mize false in ter rupts to a multitasking pro ces sor. in this case, noise can be greatly re duced by in creas ing the thresh - old level, but at the ex pense of sen si tiv ity. the best 3 db band width for the low-pass fil ter is also af fected by the thresh old level set ting of ds1. the band width must be in creased as the thresh old is in - creased to min i mize data pulse-width vari a tions with sig nal am pli - tude. data slicer ds2 can over come this com pro mise once the sig nal level is high enough to en able its op er a tion. ds2 is a ?db- below- peak? slicer. the peak de tec tor charges rap idly to the peak value of each data pulse, and de cays slowly in be tween data pulses (1:1000 ra tio). the slicer trip point can be set from 0 to 120 mv be low this peak value with a re sis tor be tween rref and thld2. a thresh old of 60 mv is the most com mon set ting, which equates to ?6 db be low peak? when rfa1 and rfa2 are run ning a 50%-50% duty cy cle. slicing at the ?6 db-below-peak? point re duces the sig nal am pli tude to data pulse-width vari a tion, al low ing a lower 3 db fil ter band width to be used for im proved sen si tiv ity. ds2 is best for ask mod u la tion where the trans mit ted wave form has been shaped to min i mize sig nal band width. how ever, ds2 is sub ject to be ing tem po rarily ?blinded? by strong noise pulses, which can cause burst data er rors. note that ds1 is ac tive when ds2 is used, as rxdata is the log i cal and of the ds1 and ds2 out puts. ds2 can be dis abled by leav ing thld2 dis con nected. a non-zero ds1 thresh old is re quired for proper agc op er a tion. agc con trol the out put of the peak de tec tor also pro vides an agc re set sig nal to the agc con trol func tion through the agc com para tor. the pur - pose of the agc func tion is to ex tend the dy namic range of the re - ceiver, so that two trans ceiv ers can op er ate close to gether when run ning ask and/or high data rate mod u la tion. the on set of sat u ra - tion in the out put stage of rfa1 is de tected and gen er ates the agc set sig nal to the agc con trol func tion. the agc con trol func tion then se lects the 5 db gain mode for rfa1. the agc com para tor will send a re set sig nal when the peak de tec tor out put (mul ti plied by 0.8) falls be low the thresh old volt age for ds1. a ca pac i tor at the agccap pin avoids agc ?chat ter ing? dur ing the time it takes for the sig nal to prop a gate through the low-pass fil ter and charge the peak de tec tor. the agc ca pac i tor also al lows the hold-in time to be set lon ger than the peak de tec tor de cay time to avoid agc chat ter ing dur ing runs of ?0? bits in the re ceived data stream. note that agc op er a tion re quires the peak de tec tor to be func tion ing, even if ds2 is not be ing used. agc op er a tion can be de feated by con nect ing the agccap pin to vcc. the agc can be latched on once en gaged by con nect ing a 150 kilohm re sis tor be - tween the agccap pin and ground in lieu of a ca pac i tor. re ceiver pulse gen er a tor and rf am pli fier bias the re ceiver am pli fier-sequence op er a tion is con trolled by the pulse gen er a tor & rf am pli fier bias mod ule, which in turn is con trolled by the prate and pwidth in put pins, and the power down (sleep) con trol sig nal from the mod u la tion & bias con trol func tion. in the low data rate mode, the in ter val be tween the fall ing edge of one rfa1 on pulse to the ris ing edge of the next rfa1 on pulse t pri is set by a re sis tor be tween the prate pin and ground. the in - ter val can be ad justed be tween 0.1 and 5 s. in the high data rate mode (se lected at the pwidth pin) the re ceiver rf am pli fi ers op er - ate at a nom i nal 50%-50% duty cy cle. in this case, the start-to-start pe riod t prc for on pulses to rfa1 are con trolled by the prate re - sis tor over a range of 0.1 to 1.1 s. in the low data rate mode, the pwidth pin sets the width of the on pulse t pw1 to rfa1 with a re sis tor to ground (the on pulse width t pw2 to rfa2 is set at 1.1 times the pulse width to rfa1 in the low data rate mode). the on pulse width t pw1 can be ad justed be tween 0.55 and 1 s. how ever, when the pwidth pin is con nected to vcc through a 1 m re sis tor, the rf am pli fi ers op er ate at a nom i nal 50%-50% duty cy cle, fa cil i tat ing high data rate op er a tion. in this case, the rf am pli fi ers are con trolled by the prate re sis tor as de - scribed above. both re ceiver rf am pli fi ers are turned off by the power down con - trol sig nal, which is in voked in the sleep and trans mit modes. trans mit ter chain the trans mit ter chain con sists of a saw de lay line os cil la tor fol - lowed by a mod u lated buffer am pli fier. the saw fil ter sup presses trans mit ter har mon ics to the an tenna. note that the same saw de - vices used in the am pli fier-sequenced re ceiver are re used in the trans mit modes. trans mit ter op er a tion sup ports two mod u la tion for mats, on-off keyed (ook) mod u la tion, and am pli tude-shift keyed (ask) mod u la - tion. when ook mod u la tion is cho sen, the trans mit ter out put turns com pletely off be tween ?1? data pulses. when ask mod u la tion is cho sen, a ?1? pulse is rep re sented by a higher trans mit ted power level, and a ?0? is rep re sented by a lower trans mit ted power level. ook mod u la tion pro vides com pat i bil ity with first-generation ash tech nol ogy, and pro vides for power con ser va tion. ask mod u la tion must be used for high data rates (data pulses less than 30 s). ask mod u la tion also re duces the ef fects of some types of in ter fer ence and al lows the trans mit ted pulses to be shaped to con trol mod u la - tion band width. the mod u la tion for mat is cho sen by the state of the cntrl0 and the cntrl1 mode con trol pins, as dis cussed be low. when ei ther mod u la tion for mat is cho sen, the re ceiver rf am pli fi ers are turned off. in the ook mode, the de lay line os cil la tor am pli fier txa1 and buffer am pli fier txa2 are turned off when the volt age to the txmod in put falls be low 220 mv. in the ook mode, the data rate is lim ited by the turn-on and turn-off times of the de lay line os cil la tor, which are 12 and 6 s re spec tively. in the ask mode txa1 is bi ased on con tin u ously, and the out put of txa2 is mod u lated by the txmod in put current. min i mum out put power oc curs in the ask mode when the mod u la tion driver sinks about 10 a of cur rent from the txmod pin. the trans mit ter rf out put power is pro por tional to the in put cur rent to the txmod pin. a se ries re sis tor is used to ad just the peak trans - mit ter out put power. 0 dbm out put power re quires about 250 a of in put cur rent. trans ceiver mode con trol the four trans ceiver op er at ing modes ? re ceive, trans mit ask, trans mit ook, and power-down (sleep), are con trolled by the mod u - la tion & bias con trol func tion, and are se lected with the cntrl1 6
and cntrl0 con trol pins. set ting cntrl1 and cntrl0 both high place the unit in the re ceive mode. set ting cntrl1 high and cntrl0 low place the unit in the ask trans mit mode. set ting cntrl1 low and cntrl0 high place the unit in the ook trans mit mode. set ting cntrl1 and cntrl0 both low place the unit in the power-down (sleep) mode. note that the re sis tor driv ing txmod must be low in the re ceive and power-down modes. the pwidth resistor must also be low in the power down mode to min i mize cur - rent. cntrl1 and cntrl0 are cmos com pat i ble in puts. these in - puts must be held at a logic level; they can not be left un con nected. trans ceiver event tim ing trans ceiver event tim ing is sum ma rized in ta ble 1. please re fer to this ta ble for the fol low ing dis cus sions. turn-on tim ing the max i mum time t pr re quired for the re ceive func tion to be come op er a tional at turn on is in flu enced by two fac tors. all re ceiver cir - cuitry will be op er a tional 5 ms af ter the sup ply volt age reaches 2.2 vdc. the bbout-cmpin cou pling-capacitor is then dc sta bi - lized in 3 time con stants (3*t bbc ). the to tal turn-on time to sta ble re - ceiver op er a tion for a 10 ms power sup ply rise time is: t pr = 15 ms + 3*t bbc the max i mum time re quired for ei ther the ook or ask trans mit ter mode to be come op er a tional is 5 ms af ter the sup ply volt age reaches 2.2 vdc. re ceive-to-transmit tim ing af ter turn on, the max i mum time re quired to switch from re ceive to ei ther trans mit mode is 12 s. most of this time is due to the start-up of the trans mit ter os cil la tor. trans mit-to-receive tim ing the max i mum time re quired to switch from the ook or ask trans - mit mode to the re ceive mode is 3*t bbc , where t bbc is the bbout- cmpin cou pling-capacitor time con stant. when the op er at ing tem - per a ture is lim ited to 60 o c, the time re quired to switch from trans mit to re ceive is dra mat i cally less for short trans mis sions, as less charge leaks away from the bbout-cmpin cou pling ca pac i tor. sleep and wake-up tim ing the max i mum tran si tion time from the re ceive mode to the power-down (sleep) mode t rs is 10 s af ter cntrl1 and cntrl0 are both low (1 s fall time). the max i mum tran si tion time from ei ther trans mit mode to the sleep mode (t tos and t tas ) is 10 s af ter cntrl1 and cntrl0 are both low (1 s fall time). the max i mum tran si tion time t sr from the sleep mode to the re ceive mode is 3*t bbc , where t bbc is the bbout-cmpin cou pling-capacitor time con stant. when the op er at ing tem per a ture is lim ited to 60 o c, the time re quired to switch from sleep to re ceive is dra mat i cally less for short sleep times, as less charge leaks away from the bbout- cmpin cou pling ca pac i tor. the max i mum time re quired to switch from the sleep mode to ei ther trans mit mode (t sto and t sta ) is 16 s. most of this time is due to the start-up of the trans mit ter os cil la tor. agc tim ing the max i mum agc en gage time t agc is 5 s af ter the re cep tion of a -30 dbm rf sig nal with a 1 s en ve lope rise time. the min i mum agc hold-in time is set by the value of the ca pac i tor at the agccap pin. the hold-in time t agh = c agc /19.1, where t agh is in s and c agc is in pf. peak de tec tor tim ing the peak de tec tor at tack time con stant is set by the value of the ca - pac i tor at the pkdet pin. the at tack time t pka = c pkd /4167, where t pka is in s and c pkd is in pf. the peak de tec tor de cay time con - stant t pkd = 1000*t pka . pulse gen er a tor tim ing in the low data rate mode, the in ter val t pri be tween the fall ing edge of an on pulse to the first rf am pli fier and the ris ing edge of the next on pulse to the first rf am pli fier is set by a re sis tor r pr be - tween the prate pin and ground. the in ter val can be ad justed be - tween 0.1 and 5 s with a re sis tor in the range of 51 k to 2000 k. the value of the r pr is given by: r pr = 404* t pri + 10.5, where t pri is in s, and r pr is in kilohms in the high data rate mode (se lected at the pwidth pin) the re - ceiver rf am pli fi ers op er ate at a nom i nal 50%-50% duty cy cle. in this case, the pe riod t prc from the start of an on pulse to the first rf am pli fier to the start of the next on pulse to the first rf am pli fier is con trolled by the prate re sis tor over a range of 0.1 to 1.1 s us - ing a re sis tor of 11 k to 220 k. in this case r pr is given by: r pr = 198* t prc - 8.51, where t prc is in s and r pr is in kilohms in the low data rate mode, the pwidth pin sets the width of the on pulse to the first rf am pli fier t pw1 with a re sis tor r pw to ground (the on pulse width to the sec ond rf am pli fier t pw2 is set at 1.1 times the pulse width to the first rf am pli fier in the low data rate mode). the on pulse width t pw1 can be ad justed be tween 0.55 and 1 s with a re sis tor value in the range of 200 k to 390 k. the value of r pw is given by: r pw = 404* t pw1 - 18.6, where t pw1 is in s and r pw is in kilohms how ever, when the pwidth pin is con nected to vcc through a 1 m re sis tor, the rf am pli fi ers op er ate at a nom i nal 50%-50% duty cy - cle, fa cil i tat ing high data rate op er a tion. in this case, the rf am pli fi - ers are con trolled by the prate re sis tor as de scribed above. lpf group de lay the low-pass fil ter group de lay is a func tion of the fil ter 3 db band - width, which is set by a re sis tor r lpf to ground at the lpfadj pin. the min i mum 3 db band width f lpf = 1445/r lpf , where f lpf is in khz, and r lpf is in kilohms. the max i mum group de lay t fgd = 1750/f lpf = 1.21*r lpf , where t fgd is in s, f lpf in khz, and r lpf in kilohms. 7
event symbol time min/max test conditions notes turn on to re ceive t pr 3*t bbc + 15 ms max 10 ms supply voltage rise time time until receiver operational turn on to txook t pto 15 ms max 10 ms supply voltage rise time time until txmod can modulate transmitter turn on to txask t pta 15 ms max 10 ms supply voltage rise time time until txmod can modulate transmitter rx to txook t rto 12 s max 1 s cntrl1 fall time txmod low 1 s before cntrl1 falls rx to txask t rta 12 s max 1 s cntrl0 fall time txmod low 1 s before cntrl0 falls txook to rx t tor 3*t bbc max 1 s cntrl1 rise time time until receiver operational txask to rx t tar 3*t bbc max 1 s cntrl0 rise time time until receiver operational sleep to rx t sr 3*t bbc max 1s cntrl0/cntrol1 rise times time until receiver operational sleep to txook t sto 16 s max 1 s cntrl0 rise time time until txmod can modulate transmitter sleep to txask t sta 16 s max 1 s cntrl1 rise time time until txmod can modulate transmitter rx to sleep t rs 10 s max 1s cntrl0/cntrol1 fall times time until transceiver is in power-down mode txook to sleep t tos 10 s max 1 s cntrl0 fall time time until transceiver is in power-down mode txask to sleep t tas 10 s max 1 s cntrl1 fall time time until transceiver is in power-down mode agc en gage t agc 5 s max 1 s rise time, -30 dbm signal rfa1 switches from 35 to 5 db gain agc hold-in t agh c agc/ 19.1 min cagc in pf, t agh in s user selected; longer than t pkd pkdet at tack time con stant t pka c pkd /4167 min c pkd in pf, t pka in s user selected pkdet de cay time con stant t pkd 1000*t pka min t pkd and t pka in s slaved to attack time prate in ter val t pri 0.1 to 5 s range low data rate mode user selected mode pwidth rfa1 t pw1 0.55 to 1 s range low data rate mode user selected mode pwidth rfa2 t pw2 1.1*t pw1 range low data rate mode user selected mode prate cy cle t prc 0.1 to 1.1 s range high data rate mode user selected mode pwidth high (rfa1 & rfa2) t pwh 0.05 to 0.55 s range high data rate mode user selected mode lpf group de lay t fgd 1750/f lpf max t fgd in s, f lpf in khz user selected lpf 3 db band width f lpf 1445/r lpf min f lpf in khz, r lpf in kilohms user selected bbout-cmpin time con stant t bbc 0.064*c bbo min t bbc in s, c bbo in pf user selected trans ceiver event tim ing, 3.0 vdc, -40 to +85 0 c ta ble 1
pin name description 1 gnd1 gnd1 is the rf ground pin. gnd2 and gnd3 should be connected to gnd1 by short, low-inductance trace s. 2 vcc1 vcc1 is the pos i tive sup ply volt age pin for the trans mit ter out put am pli fier and the re ce iver base-band cir cuitry. vcc1 is usu ally con nected to the pos i tive sup ply through a fer rite rf de coup ling bead, whic h is by passed by an rf ca pac i tor on the sup ply side . see the ash trans ceiver de signer?s guide for ad di tional in for ma tion. 3 agccap this pin con trols the agc re set op er a tion. a ca pac i tor be tween this pin and ground sets th e min i mum time the agc will hold-in once it is en gaged. the hold-in time is set to avoid agc chat ter ing. for a give n hold-in time t agh , the ca pac i tor value c agc is: c agc = 19.1* t agh , where t agh is in s and c agc is in pf a 10% ce ramic ca pac i tor should be used at this pin. the value of c agc given above pro vides a hold-in time be - tween t agh and 2.65* t agh , de pend ing on op er at ing volt age, tem per a ture, etc. the hold-in time is cho sen to al low the agc to ride through the lon gest run of zero bits that can oc cur in a re ceived data stream. t he agc hold-in time can be greater than the peak de tec tor de cay time, as dis cussed be low. how ever, the agc h old-in time should not be set too long, or the re ceiver will be slow in re turn ing to full sen si tiv ity onc e the agc is en gaged by noise or in ter fer ence. the use of agc is op tional when us ing ook mod u la tion with data pulse s of at least 30 s. agc op er a tion can be de feated by con nect ing this pin to vcc. ac tive or latched agc op er a t ion is re quired for ask mod u la tion and/or for data pulses of less than 30 s. the agc can be latched on once en gage d by con nect - ing a 150 k re sis tor be tween this pin and ground, in stead of a ca pac i tor. agc op er a tion d e pends on a func tion ing peak de tec tor, as dis cussed be low. the agc ca pac i tor is dis charged in the re ceiver power-d own (sleep) mode and in the trans mit modes. 4 pkdet this pin con trols the peak de tec tor op er a tion. a ca pac i tor be tween this pin and ground se ts the peak de tec tor at - tack and de cay times, which have a fixed 1:1000 ra tio. for most ap pli ca tions, these time con s tants should be co - or di nated with the base-band time con stant. for a given base-band ca pac i tor c bbo , the ca pac i tor value c pkd is: c pkd = 0.33* c bbo , where c bbo and c pkd are in pf a 10% ce ramic ca pac i tor should be used at this pin. this time con stant will vary be tween t pka and 1.5* t pka with vari a tions in sup ply volt age, tem per a ture, etc. the ca pac i tor is driven from a 200 ohm ?a t tack? source, and de cays through a 200 k load. the peak de tec tor is used to drive the ?db-below-peak? data slicer and the agc re lease func tion. the agc hold-in time can be ex tended be yond the peak de tec tor de cay time with the a gc ca pac i tor, as dis cussed above. where low data rates and ook mod u la tion are used, the ?db-below-peak? data sli cer and the agc are op tional. in this case, the pkdet pin and the thld2 pin can be left un con nected, and the agc pin can be con nected to vcc to re duce the num ber of ex ter nal com po nents needed. the peak de tec tor ca pac i tor is dis - charged in the re ceiver power-down (sleep) mode and in the trans mit modes. 5 bbout bbout is the re ceiver base-band out put pin. this pin drives the cmpin pin through a cou pling ca pac i tor c bbo for in ter nal data slicer op er a tion. the time con stant t bbc for this con nec tion is: t bbc = 0.064*c bbo , where t bbc is in s and c bbo is in pf a 10% ce ramic ca pac i tor should be used be tween bbout and cmpin. the time con stant can vary b e tween t bbc and 1.8*t bbc with vari a tions in sup ply volt age, tem per a ture, etc. the op ti mum time con stant in a give n cir cum - stance will de pend on the data rate, data run length, and other fac tors as dis cussed in the ash trans ceiver de - signer?s guide . a com mon cri te ria is to set the time con stant for no more than a 20% volt age droop dur ing s p max . for this case: c bbo = 70*sp max , where sp max is the max i mum sig nal pulse width in s and c bbo is in pf the out put from this pin can also be used to drive an ex ter nal data re cov ery pro cess (dsp, et c.). the nom i nal out - put im ped ance of this pin is 1 k. when the re ceiver rf am pli fi ers are op er at ing at a 50%-5 0% duty cy cle, the bbout sig nal changes about 10 mv/db, with a peak-to-peak sig nal level of up to 685 mv. for lower duty cy cles, the mv/db slope and peak-to-peak sig nal level are pro por tion ately less. the sig nal at bbout is rid ing on a 1.1 vdc value that var ies some what with sup ply volt age and tem per a ture, so it should be cou pled through a ca - pac i tor to an ex ter nal load. a load im ped ance of 50 k to 500 k in par al lel with no more tha n 10 pf is rec om - mended. when an ex ter nal data re cov ery pro cess is used with agc, bbout must be cou pled to the ex ter nal data re cov ery pro cess and cmpin by sep a rate se ries cou pling ca pac i tors. the agc re set fu nc tion is driven by the sig nal ap plied to cmpin. when the trans ceiver is in power-down (sleep) or in a trans mit mod e, the out put im - ped ance of this pin be comes very high, pre serving the charge on the cou pling ca pac i tor. 6 cmpin this pin is the in put to the in ter nal data slic ers. it is driven from bbout through a cou pling ca pac i tor. the in put im ped ance of this pin is 70 k to 100 k. 7 rxdata rxdata is the re ceiver data out put pin. this pin will drive a 10 pf, 500 k par al lel load. the p eak cur rent avail able from this pin in creases with the re ceiver low-pass fil ter cut off fre quency. in the power-down (sleep) or trans mit modes, this pin be comes high im ped ance. if re quired, a 1000 k pull-up or pull-down re sis tor c an be used to es tab - lish a def i nite logic state when this pin is high im ped ance. if a pull-up re sis tor is used, t he pos i tive sup ply end should be con nected to a volt age no greater than vcc + 200 mv. 9 pin de scrip tions
pin name description 8 txmod the trans mit ter rf out put volt age is pro por tional to the in put cur rent to this pin. a se ri es re sis tor is used to ad just the peak trans mit ter out put volt age. 0 dbm out put power re quires about 250 a of in put cur r ent. in the ask mode, min i mum out put power oc curs when the mod u la tion driver sinks about 10 a of cur rent from th is pin. in the ook mode, in put sig nals less than 220 mv com pletely turn the trans mit ter os cil la tor off. in ter nally, this pin ap pears to be a di ode in se ries with a small re sis tor. peak trans mit ter out put power p o for a 3 vdc sup ply volt age is ap prox i - mately: p o = 16*(i txm ) 2 , where p o is in mw, and the peak mod u la tion cur rent i txm is in ma a 5% re sis tor value is rec om mended. in the ook mode, this pin is usu ally driven with a logic- level data in put (unshaped data pulses). ook mod u la tion is prac ti cal for data pulses of 30 s or lon ger. in th e ask mode, this pin ac cepts an a log mod u la tion (shaped or unshaped data pulses). ask mod u la tion is prac ti cal for data pulses 8.7 s or lon ger. the re sis tor driv ing this pin must be low in the re ceive and power-down (sleep) modes. please re fer to the ash trans ceiver de signer?s guide for ad di tional in for ma tion on mod u la tion tech niques. 9 lpfadj this pin is the re ceiver low-pass fil ter band width ad just. the fil ter band width is set by a r e sis tor r lpf be tween this pin and ground. the re sis tor value can range from 330 k to 820 ohms, pro vid ing a fil ter 3 db b and width f lpf from 4.5 khz to 1.8 mhz. the re sis tor value is de ter mined by: r lpf = 1445/ f lpf , where r lpf is in kilohms, and f lpf is in khz a 5% re sis tor should be used to set the fil ter band width. this will pro vide a 3 db fil ter ba nd width be tween f lpf and 1.3* f lpf with vari a tions in sup ply volt age, tem per a ture, etc. the fil ter pro vides a three-pole, 0. 05 de gree equiripple phase re sponse. the peak drive cur rent avail able from rxdata in creases in pro por ti on to the fil ter band width set ting. 10 gnd2 gnd2 is an ic ground pin. it should be connected to gnd1 by a short, low in duc tance trace. 11 rref rref is the ex ter nal ref er ence re sis tor pin. a 100 k ref er ence re sis tor is con nected be tween this pin and ground. a 1% re sis tor tol er ance is rec om mended. it is im por tant to keep the to tal ca pac i tance be tween ground, vcc and this node to less than 5 pf to main tain cur rent source sta bil ity. if thld1 and/or thdl2 are con nected to rref through re sis tor val ues less that 1.5 k, their node ca pac i tance must be added to the rref nod e ca pac i tance and the to tal should not ex ceed 5 pf. 12 thld2 thld2 is the ?db-below-peak? data slicer (ds2) thresh old ad just pin. the thresh old is set by a 0 to 200 k re sis tor r th2 be tween this pin and rref. in creasing the value of the re sis tor de creases the thresh old be l ow the peak de - tec tor value (in creases dif fer ence) from 0 to 120 mv. for most ap pli ca tions, this thresh old should be set at 6 db be low peak, or 60 mv for a 50%-50% rf am pli fier duty cy cle. the value of the thld2 re sis tor i s given by: r th2 = 1.67*v, where r th2 is in kilohms and the thresh old v is in mv a 1% re sis tor tol er ance is rec om mended for the thld2 re sis tor. leaving the thld2 pin open dis ables the db-below-peak data slicer op er a tion. 13 thld1 the thld1 pin sets the thresh old for the stan dard data slicer (ds1) through a re sis tor r th1 to rref. the thresh - old is in creased by in creas ing the re sis tor value. con necting this pin di rectly to rref pro vides zero thresh old. the value of the re sis tor de pends on whether thld2 is used. for the case that thld2 is not used, the ac cept - able range for the re sis tor is 0 to 100 k, pro vid ing a thld1 range of 0 to 90 mv. the re sis to r value is given by: r th1 = 1.11*v, where r th1 is in kilohms and the thresh old v is in mv for the case that thld2 is used, the ac cept able range for the thld1 re sis tor is 0 to 200 k, aga in pro vid ing a thld1 range of 0 to 90 mv. the re sis tor value is given by: r th1 = 2.22*v, where r th1 is in kilohms and the thresh old v is in mv a 1% re sis tor tol er ance is rec om mended for the thld1 re sis tor. note that a non-zero ds1 th resh old is re quired for proper agc op er a tion. 14 prate the in ter val be tween the fall ing edge of an on pulse to the first rf am pli fier and the ris in g edge of the next on pulse to the first rf am pli fier t pri is set by a re sis tor r pr be tween this pin and ground. the in ter val t pri can be ad - justed be tween 0.1 and 5 s with a re sis tor in the range of 51 k to 2000 k. the value of r pr is given by: r pr = 404* t pri + 10.5, where t pri is in s, and r pr is in kilohms a 5% re sis tor value is rec om mended. when the pwidth pin is con nected to vcc through a 1 m re sis tor, the rf am pli fi ers op er ate at a nom i nal 50%-50% duty cy cle, fa cil i tat ing high data rate op er a tion. in this case, the pe riod t prc from start-to-start of on pulses to the first rf am pli fier is con trolled by the prate re sis to r over a range of 0.1 to 1.1 s us ing a re sis tor of 11 k to 220 k. in this case the value of r pr is given by: r pr = 198* t prc - 8.51, where t prc is in s and r pr is in kilohms a 5% re sis tor value should also be used in this case. please re fer to the ash trans ceiver de signer?s guide for ad di tional am pli fier duty cy cle in for ma tion. it is im por tant to keep the to tal ca pac i tance be tween ground, vcc and this pin to less than 5 pf to main tain sta bil ity. 10
pin name description 15 pwidth the pwidth pin sets the width of the on pulse to the first rf am pli fier t pw1 with a re sis tor r pw to ground (the on pulse width to the sec ond rf am pli fier t pw2 is set at 1.1 times the pulse width to the first rf am pli fier). the on pulse width t pw1 can be ad justed be tween 0.55 and 1 s with a re sis tor value in the range of 200 k to 390 k. th e value of r pw is given by: r pw = 404* t pw1 - 18.6, where t pw1 is in s and r pw is in kilohms a 5% re sis tor value is rec om mended. when this pin is con nected to vcc through a 1 m re sis to r, the rf am pli fi - ers op er ate at a nom i nal 50%-50% duty cy cle, fa cil i tat ing high data rate op er a tion. in this case, the rf am pli fier on times are con trolled by the prate re sis tor as de scribed above. it is im por tant to keep the to tal ca pac i tance be tween ground, vcc and this node to less than 5 pf to main tain sta bil ity. when us ing the high data rate op er a tion with the sleep mode, con nect the 1 m re sis tor be tween this pin and cntrl1 (pin 17), so this pin is low in the sleep mode. 16 vcc2 vcc2 is the pos i tive sup ply volt age pin for the re ceiver rf sec tion and trans mit ter os cil la tor. pin 16 must be by - passed with an rf ca pac i tor, and must also be by passed with a 1 to 10 f tan ta lum or elec tro lytic ca pac i tor. see the ash trans ceiver de signer?s guide for ad di tional in for ma tion. 17 cntrl1 cntrl1 and cntrl0 se lect the re ceive and trans mit modes. cntrl1 and cntrl0 both high place the u nit in the re ceive mode. cntrl1 high and cntrl0 low place the unit in the ask trans mit mode. cntrl1 low and cntrl0 high place the unit in the ook trans mit mode. cntrl1 and cntrl0 both low place the unit in the power-down (sleep) mode. cntrl1 is a high-impedance in put (cmos com pat i ble). an in put volt age of 0 to 300 mv is in ter preted as a logic low. an in put volt age of vcc - 300 mv or greater is in ter pre ted as a logic high. an in put volt age greater than vcc + 200 mv should not be ap plied to this pin. a logic high re quire s a max i mum source cur rent of 40 a. a logic low re quires a max i mum sink cur rent of 25 a (1 a in sleep m ode). this pin must be held at a logic level; it can not be left un con nected. 18 cntrl0 cntrl0 is used with cntrl1 to con trol the re ceive and trans mit modes of the trans ceiver. cntrl0 is a high-impedance in put (cmos com pat i ble). an in put volt age of 0 to 300 mv is in ter preted as a logic low. an in put volt age of vcc - 300 mv or greater is in ter preted as a logic high. an in put volt age greater th an vcc + 200 mv should not be ap plied to this pin. a logic high re quires a max i mum source cur rent of 40 a. a logic low re quires a max i mum sink cur rent of 25 a (1 a in sleep mode). this pin must be held at a logic level; it c an not be left un - con nected. 19 gnd3 gnd3 is an ic ground pin. it should be con nected to gnd1 by a short, low in duc tance trace. 20 rfio rfio is the rf in put/out put pin. this pin is con nected di rectly to the saw fil ter trans ducer. an tennas pre sent ing an im ped ance in the range of 35 to 72 ohms re sis tive can be sat is fac to rily matched to this pin with a se ries match - ing coil and a shunt match ing/esd pro tec tion coil. other an tenna im ped ances can be matched us ing two or three com po nents. for some im ped ances, two inductors and a ca pac i tor will be re quired. a dc path from rfio to ground is required for esd pro tec tion. 11 s m - 2 0 h p c b p a d l a y o u t d i m e n s i o n s i n i n c h e s . . 0 9 . 3 7 0 0 . 0 0 0 . 0 6 5 . 1 0 5 . 1 4 5 . 1 8 5 . 2 2 5 . 2 6 5 . 3 0 5 . 3 4 5 . 4 3 5
12 note: spec i fi ca tions sub ject to change with out no tice. file: TR3005.vp, 121305 rev 0 . 2 0 0 . 4 0 0 . 6 0 0 . 8 0 1 . 0 0 1 . 2 0 1 . 4 0 1 . 6 0 3 v r f o u t p u t p o w e r v s i t x m i t x m i n a 2 5 5 0 7 5 1 0 0 1 2 5 1 5 0 1 7 5 2 0 0 2 7 5 2 5 0 2 2 5 i t x m i n a v t x m v s i t x m 0 . 8 5 0 . 9 0 0 . 9 5 1 . 0 0 1 . 0 5 1 . 1 0 1 . 1 5 1 . 2 0 2 5 5 0 7 5 1 0 0 1 2 5 1 5 0 1 7 5 2 0 0 2 7 5 2 5 0 2 2 5

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