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W55RFS27R3C data sheet 1 revision: a 1 .0 publish date: feb. 2010 - 1 - revision a1 super - regeneration rf receiver W55RFS27R3C data sheet
W55RFS27R3C data sheet 2 revision: a 1 .0 publish date: feb. 2010 - 2 - revision a1 contents general description 3 1.1 W55RFS27R3C features ................................ ................................ ................................ ...................... 3 1.2 W55RFS27R3C pad definition ................................ ................................ ................................ ............ 4 1.2.1 W55RFS27R3C pad description ................................ ................................ ......................... 4 system desc ription 6 2.1 W55RFS27R3C system block diagram ................................ ................................ ............................... 6 2.2 W55RFS27R3C functional description ................................ ................................ ............................... 7 electronic characteristics 7 3.1 W55RFS27R3C absolute maximum ratings ................................ ................................ ....................... 7 3.2 W55RFS27R3C dc characteristics ................................ ................................ ................................ ...... 8 3.3 W55RFS27R3C ordering information ................................ ................................ ................................ . 8 3.4 W55RFS27R3C package information ................................ ................................ ................................ ... 9 3.4.1 W55RFS27R3C bonding pad list ................................ ................................ ....................... 9 3.4.2 W55RFS27R3C bonding pad diagram ................................ ................................ ............... 9 design information 10 4.1 W55RFS27R3C reference design ................................ ................................ ................................ ..... 10 4.1.1 W55RFS27R3C application circuit ................................ ................................ .................. 10 4.2 W55RFS27R3C data s heet document history ................................ ................................ .................. 11
W55RFS27R3C data sheet 3 revisi on: a1 .0 publish date: feb. 2010 - 3 - revision a1 general description nuvoton w55r f s 27r 3c is a fully integrated s - r (super - regeneration) rf receiver with full - function of baseband control command decoder for application of r/c vehicle, t oy, or wireless data communication. W55RFS27R3C provides both uc - mode for simple logic interface to general purpose of micro - controller and manual - mode for baseband control command decoder. manual - mode is designed with winbond patented channelshared wb pro tocol for multi - player application. up to 3 players is allowed simultaneously playing in the same frequency band. there are 6 function available in manual - mode , i.e., forward, backward, left - turn, right - turn, and two other reserved function f1, f2 for lig ht, horn or other control function. uc - mode can be controlled by general purpose micro - controller to support r/c toy, or wireless data communication. the associate transmitter w55rfs27t3b provides the fcc/etsi regulation provisions for 27mhz, 40mhz, and 49mhz s - r (super - regeneration) demodulation and wide range of operating voltage 2. 1 v ~ 5.5v for 2 - battery or 3 - battery r/c toy application. . 1.1 W55RFS27R3C features ? winbond patented channelshared wb protocol enables maximum 3 players simultaneo usly playing in one frequency band. ? on - chip lna provides very good isolation so that receivers can work together without interference. ? enhanced receiver circuit provides higher sensitivity than traditional super - regenerative circuits. ? operating frequency: 27mhz to 49mhz (depend on oscillator frequency) ? very low operating voltage: 2. 2 v ~ 5.5v ? receiving data rates up to 2.5kbps for 50% duty cycle ? supports 6 - function of r/c toy baseband control command de coder ? power down current consumption less than 1ua ? less manual adjustment needed in production ? lower manufacture production cost ? associate transmitter w55rfs27t3b compliant to fcc part 15 subpart c 15.227 / etsi 300 220 - 1 low - power & short - range device requirements ? operating temperature: 0 ? c ~ 70 ? c
W55RFS27R3C data sheet 4 revisi on: a1 .0 publish date: feb. 2010 - 4 - revision a1 1.2 w55r fs27r3c pad definition 1.2.1 W55RFS27R3C pad description gnd 1. ground a ground return path cmfb 2. i/o a common - mode feedback capacitor connect rbias 3. i/o a r esistor to adjust internal ring - oscillator frequen cy rsaw 4. i/o a r esistor to control internal saw generator vdda 5. power a regulated voltage output vdda 6. power a regulated voltage output gnd_lna 7. ground a lna ground return path vdd_ln a 8. power a lna power input sdingd 9. ground a filter c apacitor conne ct lnaing 10. i a lna gate input lnains 11. i a lna s ource input lnaout 12. o a lna output(nc) oscin 13. o a oscillator tank input oscout 14. o a oscillator tank output gnda 15. o a r egulator ground return path r esetn 16. i/ o d r esetn =0 reset whole circuit , internal pu ll - high mode 17. i d receiver mode selection , should be 0 when operating i d id setting(lsb) for channel shared , id0=id1 = 1 ? uc - mode id1 19. i d id setting (msb) for channel shared , id0=id1 = 1 ? uc - mode test 20. i d test=1 reserved for chi p testing , internal pull - low f1 21. i /o d decoder f1 output / power on trapping of oagc (set 0) i /o d decoder f2 output / power on trapping of hopq (set 1) cpu mode= $enb (0 power down) i /o d decoder right - turn output / cpu mode= hop_clk l 24. i /o d decoder left - turn output / cpu mode=oagc2q b 25. i /o d decoder backward output / cpu mode=oagc1q f 26. i /o d decoder forward output / cpu mode=oagc0q rxd 27. i /o d receiver data output / power on trapping of lenb (set 1) power a power input symbol p ad no. i/o a/d functional description
W55RFS27R3C data sheet 5 revisi on: a1 .0 publish date: feb. 2010 - 5 - revision a1 1. 2.2 power - on trapping function description power - trapping pin name trapping state function description recommend usage rxd 1 enable lna enable lna 0 disable lna f1 1 enable oagc disable oagc 0 disable oagc f2 1 enable frequency hopping enable fr equency hopping 0 disable frequency hopping
W55RFS27R3C data sheet 6 revisi on: a1 .0 publish date: feb. 2010 - 6 - revision a1 system description 2.1 W55RFS27R3C system block diagram saw generator baseband decoder oscin power regulator f b l r f1 f2 mode0 power - on reset oscout rxd lna. filter oscillator i dx rsaw qch osc data slicer resetn rectifier rbias
W55RFS27R3C data sheet 7 revisi on: a1 .0 publish date: feb. 2010 - 7 - revision a1 2.2 W55RFS27R3C functional description channelshared protocol engine W55RFS27R3C+w55rfs27t3b built - in channelshared wb pro tocol enables maximum 3 players in a frequency band. switch channel is simply switch an input state, instead of change crystal such a high cost channel switching. power regulator W55RFS27R3C build - in on - chip power regulator provides a stable operating p erformance under operating voltage from 2.2v ~ 5.5v, the very wide range of operating voltage is specially designed for mini r/c toy or r/c vehicle by 2 - battery or 3 - battery operation. rf receiver W55RFS27R3C rf receiver has been enhanced from "super - reg eneration" architecture for r/c toy application. the high sensitivity and high noise immunity property is very suitable for getting higher rf receiving performance in very high noise level environment. on - chip lna provides isolation from receivers and is v ery useful for multi - player application baseband control function decoder W55RFS27R3C build - in 6 - function of general baseband control function for r/c toy " f orward"; " b ackward"; " l eft - turn"; " r ight - turn", and 2 more reserved control functions of " f1 "; " f 2 ". electronic characteristics 3.1 W55RFS27R3C absolute maximum ratings parameter rating unit supply voltage to ground potential - 0.3 to 6.5 v applied input/output voltage - 0.3 to 6.5 v power dissipation (t a = 70 ? ? ? note: exposure to conditions beyond those listed under absolute maximum ratings may adversely affect the life and reliability of th e device.
W55RFS27R3C data sheet 8 revisi on: a1 .0 publish date: feb. 2010 - 8 - revision a1 3.2 W55RFS27R3C dc characteristics (vdd - vss = 3 v, ta = 25 ? c; unless otherwise specified) parameter sym. conditions min. typ. max. unit power supply operating voltage v dd 2.2 - 5.5 v operating current i op v dd =5.5v - - 4 ma stand - by current i sby v dd =5.5v , enb= 0 ( uc - mode ) - - 2 ? a digital input/output pin input high voltage v ih 0.8* v dd - v dd v input low voltage v il v ss - 0.1* v dd v f,b,l,r,f1,f2 output high source current i oh v oh =0.7 * v dd - 6 - ma f,b,l,r,f1,f2 output low sink current i ol v ol =0.3 * v dd - 6 - ma rxd output high source current i o h v oh =0.7 * v dd - 2 - ma rxd output low sink current i ol v ol =0.3 * v dd - 2 - ma oscillator operation frequency f osc 27 - 49.8 mhz quench frequency f qch 170 200 250 khz baseband decoder section modulation duty cycle m dyt 30 50 70 % received data r ate r dtt 50% duty - cycle manchester code - 2.5 - kbps 3.3 W55RFS27R3C ordering information W55RFS27R3C provides two types of package in shipment: dice form and wafer form part number package remarks W55RFS27R3C(h) dice form W55RFS27R3C(w) wafer for m
W55RFS27R3C data sheet 9 revisi on: a1 .0 publish date: feb. 2010 - 9 - revision a1 3.4 W55RFS27R3C package information 3.4.1 W55RFS27R3C bonding pad list window : (xl = - 1228.000, yl = - 625.000),(xh = 1228.000, yh = 625.000) windows size : width = 2456.000, length = 1250.000 ============================================== ============================= ==== pad no pad name pin no(dip28) x y --------------------------------------------------------------------------- ---- 1 * gnd * 1 - 33.015 540.000 2 cmfb 2 - 385.965 540.000 3 rbias 3 - 492.965 54 0.000 4 rsaw 4 - 599.965 540.000 5 vdda: 5 - 709.365 540.000 6 vdda: 5 - 821.165 540.000 7 gnd_lna 6 - 1143.000 532.375 8 vdd_lna 7 - 1143.000 420.975 9 sdingd 8 - 1143.000 308.495 10 lnaing 9 - 1143.000 174.685 11 lnains 1 0 - 1143.000 - 46.460 12 lnaout 11 - 1143.000 - 525.320 13 oscin 12 - 815.090 - 540.000 14 oscout 13 - 685.215 - 540.000 15 gnda 14 - 575.165 - 540.000 16 resetn 15 - 148.690 - 540.000 17 mode 16 - 41.690 - 540.000 18 id0 17 65.3 10 - 540.000 19 id1 18 172.310 - 540.000 20 test 19 279.310 - 540.000 21 f1 20 389.910 - 540.000 ------------------------------ 21(gnd) -------------------------------------- - 22 f2 22 770.310 540.000 23 r 23 655.860 540.000 24 l 24 541.410 540.000 25 b 25 426.960 540.000 26 f 26 312.510 540.000 27 rxd 27 196.535 540.000 28 vsply 28 78.385 540.000 (*: bonding sequence start from gnd(pin1)) 3.4.2 W55RFS27R3C bonding pad diagram * 1 2 3 4 5 6 7 2 1 2 2 1 8 1 7 1 6 1 5 2 0 1 9 11 10 9 1 3 12 1 4 8 W55RFS27R3C 2 3 2 4 2 5 2 6 2 7 2 8
W55RFS27R3C data sheet 10 revisi on: a1 .0 publish date: feb. 2010 - 10 - revision a1 design inform ation 4.1 W55RFS27R3C reference design 4.1.1 W55RFS27R3C application circuit 1 2 3 4 5 6 a b c d 6 5 4 3 2 1 d c b a title n u mb er r ev is io n size b d ate: 8 -j u l-2 0 0 4 sh eet o f file: c :\temp \b a ck u p~2 2 . dd b d raw n b y : 1 1 2 2 o l 0 1 . 5 u h c 1 2 2 7 p f c 1 3 2 0 p f f b l r f2 f2 f1 r l b f 1 2 3 te st c on 3 v spl y 1 2 3 id1 c on 3 v spl y 1 2 3 id0 c on 3 v spl y 1 2 3 r xd 3 c on 3 v spl y 1 2 3 4 res etn b ut to m r xd c 2 5 4 7 n f + c1 1 0 u f v spl y c3 6 8 n f c4 1 5 n f + c2 1 0 u f r3 r5 1 2 -ba t+ c on 2 v spl y te st 1 2 f2 le d 1 2 f1 le d 1 2 r le d 1 2 l le d 1 2 b le d 1 2 f le d 1 a nt a nt en na 1 2 3 m o de c on 3 v spl y + c8 1 u f r sa w id0 id1 W55RFS27R3C application circuit power pin: vsply gnd input pin: id0 id1- - switch vsply or gnd test - - jump switch vsply or gnd test pin : rxd rf pin: ant output/input pin: f b l r - - jump switch vsply or gnd c 1 1 1 5 n f c9 1 5 n f + c 1 0 1 0 u f v dd a ln a _ v dd ln a _ g nd sd ing d r8 1 0 k r4 3 3 0 r6 3 3 0 r9 3 3 0 r 1 0 3 3 0 r 1 1 3 3 0 r 1 2 3 3 0 1 2 3 f3 c on 3 v spl y 1 2 3 b3 c on 3 v spl y 1 2 3 l3 c on 3 v spl y 1 2 3 r -3 c on 3 v spl y m o de 1 2 3 f2 3 c on 3 v spl y r 1 4 1 0 k 1 2 3 f1 3 c on 3 v spl y r 1 5 1 0 k f1 f b l r f2 f1 mode - - switch vsply or gnd output/power on trapping: rxd f1 f2 cpu mode power down: f2 g nd c m fb r bia s ln a in g ln a ou t o sc in o sc o u t g nd a res etn v spl y 1 r xd c on 1 o l 2 1 . 2 u h ln a in s sd ing d 8 ln a _ ins 10 ln a ou t 11 o sc in 12 o sc o u t 13 g nd a 14 ln a _ ing 9 na 21 res etn 15 m o de 16 id0 17 id1 18 te st 19 f1 20 f2 22 r 23 l 24 b 25 f 26 r xd 27 v spl y 28 g nd 1 c m fb 2 r bia s 3 r sa w 4 v dd a 5 v dd _ l na 7 g nd _ l na 6 u1 w 5 5 r fs2 7 r 3 c c 2 4 1 5 n f a nt 1 sm a r2 0
W55RFS27R3C data sheet 11 revisi on: a1 .0 publish date: feb. 2010 - 11 - revision a1 W55RFS27R3C application schematic bom: item qty reference part --------------------------------------------------------------------------------------------------- ----------------------- 1. 1 0 r2 2. 1 1.2uh ol2 3. 1 1.5uh ol0 4. 1 1uf c8 5. 2 10k r8 r14 6. 1 10k r15 7. 3 10uf c1 c2 c10 8. 4 15nf c4 c9 c11 c24 9. 1 20pf c13 10. 1 27pf c12 11. 1 47nf c25 12. 1 68nf c3 13. 5 330 r4 r6 r9 10 r11 14. 1 330 r12 15. 1 antenna ant 16. 1 W55RFS27R3C u1 4.2 W55RFS27R3C data sheet document history revision date description a 0 jul. 2004 preliminary version a0 a1 .0 feb. 2010 logo changed
W55RFS27R3C data sheet 12 revisi on: a1 .0 publish date: feb. 2010 - 12 - revision a1 important notice nuvoton products are neither intended nor warranted for usage in systems or equipment, any malfunction or failure of which may cause loss of human life, bodily injury or severe property damage. such applications are deemed , insecure usage. insecure usage includes, but is not limited to: equipment for surgical implementation, atomic energy control instruments, airplane or spaceship instruments, the control or operation of dynamic, brake or safety systems designed for vehicular use, traffic signal instruments, all types of safety devices, and other applications intended to support or sustain life. all insecure usage shall be made at customers risk, and in the event that third parties lay claims to nuvoton as a result of customers insecure usage, customer shall indemnify the damages and liabilities thus incurred by nuvoton.

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