RPM960-H7 photo link module 1/5 irda infrared communication module RPM960-H7 RPM960-H7 is an infrared communication module for irda ver. 1.3 (low power). the infrared led, pin photo diode, and waveform shaping lsi are all integrated into one single package. this module is designed for low power consumption. the very small package makes it a perfect fit for mobile devices. z z z z features 1) infrared led, pin photo diode, led driver & receiver frequency formation circuit built in. improvement of emi noise protection because of shield case. 2) applied to sir (2.4 k to 115.2 kbps) and mir (0.576,1.152 mbps) 3) surface mount type. 4) power down function built in. 5) adjustable communication distance by led load resistance value. z z z z applications cellular phone, pda, dvc, digital still camera, printer, handy terminal, etc z z z z absolute maximum ratings (ta = 25 c) parameter symbol limits unit supply voltage vcc/ledvcc/vio 6.5 ? 25 85 ? 30 100 v mw ? 0.3 vio + 0.3 operation temperature storage temperature input voltage topr tstg vin ( 3,4,5pin ) ?c ?c v ma led peak current power dissipation ifp pd 400 300 ? 1 ? 2 ? 3 ? 1 ) this applies to all pins basis ground pin (8pin). ? 2 ) led peak current : < 90 s, on duty < 25% ? 3 ) when glass-epoxy board (70x70x1.6mm) mounted. in case of operating environment is over 25 ?c, 4mw would be reduced per each 1 ?c stepping up. z z z z recommended operating conditions (ta = 25 c) supply voltage parameter symbol min. typ. max. unit vcc 3.0 v 2.4 3.6 ledvcc vio 3.0 v 2.7 5.5 3.0 v 1.8 vcc
RPM960-H7 photo link module 2/5 z z z z block diagram and application circuit amp 1 8765432 amp amp power down txd txd vcc(6pin) and ledvcc(1pin) can be used on either common power source or different one rxd c1 leda ledc rxd pwdown vcc vio gnd pwdown vcc vio gnd r1 ledvcc z z z z recommended values 5%,1/4 w part symbol c1 recommended value notice 6.8 f, ceramic or tantalum ex. ) tcfga1a685m8r ( rohm ) bigger capacitance is recommended with much noise from power supply r1 5.6 ? more than 50cm distance, more than 10 w/cm 2 at detecting + ? ( vledvcc = 3.0v ) side. ( vs ver1.1 ) in case of using r1 with different condition from the above, formula is as follows : led resistance value : r1 {?}, led average consumption current : iled { ma } , supply voltage : vledvcc { v } necessary d { cm } ( including led's distribution within + ? 15 deg ) r1 = t ?( vledvcc ? 1.45 ) / d 2 ? 5 {?} iled = duty ?( vledvcc ? 1.36 ) / ( r1 + 4 ) { a } duty : led duty at emitting, t = 17000 ? at iled / duty < 180 ma
RPM960-H7 photo link module 3/5 z z z z terminal description terminal circuit function pin no 1 leda connect to ground. 2 ledc rxd vcc vio shield case 3 4 5 6 7 ? txd vio vio vio vio pwdown 300k 8 gnd ground led anode terminal led cathode terminal this terminal must be left open. transmitting data input terminal h:led radiant (pwdown='l') cmoslogic level input. led 600k when pwdown ( 5pin )= 'h', the rxd output will be pulled up tp vio at approximately 300 k ?. pwdown power-down control terminal h: powerdown l: operation cmos logic level input. when input is "h", it will stop the receiving circuit, pin ? pd current and transmitting led operation. vcc supply voltage for transceiver circuits. for preventing from infection, connect a capacitor between gnd ( 8pin ) . vio supply voltage for i / 0 pins (pwdown,rxd,txd). 1 2 other power source can be used difference between ledvcc and vcc. led current depends on led load resistance value. include internal current limiter (max.400ma). holding txd = "h"status,led will be turn off approximately 48 s. receiving data output terminal
RPM960-H7 photo link module 4/5 z z z z electrical characteristics (unless otherwise noted, v cc =3v, ledvcc=3v, vio=3v, ta=25 c) parameter symbol min. typ. max. unit conditions consumption current 1 i cc 1 i cc 2 vpdh vpdl ipdh ipdl 440 a pwdown = ov at no input light pwdown = vio at no input light pwdown = vio vio = 1.8 3.6 v consumption current 2 transmission rate pwdown input high voltage pwdown input low voltage pwdown input high current pwdown input low current txd input highvoltage txd input low voltage rxd output high voltage rxd output rise time rxd output fall time rxd output pulse width receiver latency time rxd output low voltage txd input highcurrent txd input low current led anode current 1 270 0.01 ? 0 ? 2.4 ? ? 2/3 ? vio 2/3 ? vio 1/3 ? vio 1/3 ? vio 10 610 a 0.2 kbps 1152 v v vio < transmitter > < receiver > vtxh vtxl itxh itxl iled1 vrxh vrxl trr tfr trt twrxd pwdown = 0 v txd = vio txd = 0 v 0 ? 1.0 0 2.5 ? 1.0 ? 0 ? ? 228 ? vio ? 0.4 0 ? 1.0 ? ? 5 0 170 ? ? 20 20 380 100 a 1.0 a 1.0 v v a a ma v v ns ns s ns vio 1.0 400 ? vio 0.4 ? ? 532 200 irxh = ? 200 a irxl = 200 a cl = 15pf cl = 15pf cl = 15pf, 2.4k 1.152 mbps vio = 1.8 3.6 v ( vio < = vcc ) ma ( vio < = vcc ) led anode current 2 iled2 180 260 r1 = 5.6 ? r1 = 5.6 ? ledvcc = 5.5v ns 1.152 mbps 160 ?? tjrxd rxd output pulse edje jitter z z z z optical characteristics (unless otherwise noted, v cc =3v, vleda=3v, vio=3v, ta=25 c) parameter symbol min. typ. max. unit conditions peak wave length 1. this product is not designed for protection against radioactive rays. 2. this product dose not include laser transmitter. 3. this product includes one pin photo diode. 4. this product dose not include optical load. p ie1 d / 2 tledmax tr / tf tj eemin 870 nm ? 15 deg l 15 deg txd=vio 10% 90% intensity1 rise time / fall time optical over shoot edge jitter minimum irradiance in angular input half ? angular maximum emitting time 850 63 25 ? 18 ? ? 900 mw / sr 200 ie2 intensity2 24 mw / cm 2 deg ns deg s 120 ? ? ? ? ? 9 15 16 % 25 ns 40 500 ? 14 < = < = r1=5.6 ? mw / sr l l = < < < = = ? 30 deg,30 deg r1=5.6 ? half ? angle l / 2 ? ? 25 25 ? maximum irradiance in augular eemax ? w / cm 2 ?? 48 optical pulse width twe 172 217 256 ns ttxd=217 ns ? 15 deg l 15 deg = < ? 15 deg l 15 deg < = = <
RPM960-H7 photo link module 5/5 z z z z notes 1) ledvcc (1pin), vcc (6pin) and vio (7pin) ? other power source can be used difference between ledvcc and v cc and vio. (vio < vcc +0.3v) 2) caution in designing board lay-out to get maximum potential from RPM960-H7, please keep in mind following instruction. ? the line of rxd (4pin) should be connected at backside via through hole close to RPM960-H7 pin lead. better not to be close to photo diode side (8pin side). ? ? ? ? this is to minimize feedback supplied to photo diode from rxd. ? as for c1 between 6-8 pin should be placed close to RPM960-H7. ? better to be placed more than 1.0cm in radius from photo diode (8pin side) and also away from the parts which generates noise, such as dc / dc converter. 3) notes ? please be sure to set up the txd (3pin) input to be ?l? (under 0.6v) except transmitting data (for < 90 sec. on duty < 25%). ? powerdown current might increase if exposed by strong light (ex. direct sunlight) at powerdown mode. ? please use by the signal format which is specified by irda ver1.3 (low power) except 4 mbps. there might be on error if used by different signal format. ? dust or dirt on lens portion may affect the characteristics, so pay suffye safe ? iec825-1 (en60825-1) class 1 eye safe. z z z z external dimensions (units : mm) 0.15 1 2.2 pin pd 1.1 2.8 4.0 8.0 2.7 18 p0.95 7 = 6.65 0.35 2.9 2.2 0.8 2.55 led r1.1 r1.0 0.6 0.6 0.475 0.675 lot no. 960
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