everlight electronics co.,ltd. everlight electronics co., ltd. http:\\www.everlight.com rev 1 page: 1 of 10 device no szdmo-037-031 prepared date 31-august-2007 prepared by liuyan technical data sheet infrared remote-control receiver module irm-37xxt series features ? photo detector and preamplifier in one package ? internal filter for pcm frequency ? improved inner shielding against electrical field disturbance ? ttl and cmos compatibility ? low power consumption ? improved immunity against ambient light ? suitable burst length ?10 cycles/burst R ? pb free ? bicmos manufacture ic ; esd hbm>4000v ; mm>250v ? the product itself will remain within rohs compliant version. descriptions the irm-37xxt is miniaturized receivers for infrared remote control systems. pin diode and preamplifier are assembled on lead frame, the epoxy package is designed as ir filter. the demodulated output signal can directly be decoded by a microprocessor.irm-37xxt is the standard ir remote control receiver series, supporting all major transmission codes. applications ? light detecting portion of remote control ? av instruments such as audio, tv, vcr, cd, md, etc. ? home appliances such as air-conditioner, fan , etc. ? the other equipments with wireless remote control. ?catv set top boxes ? multi-media equipment part material color chip silicon black compound epoxy black
everlight electronics co.,ltd. everlight electronics co., ltd. http:\\www.everlight.com rev 1 page: 2 of 10 device no szdmo-037-031 prepared date 31-august-2007 prepared by liuyan irm-37xxt series package dimensions unit:mm notes: 1.all dimensions are in millimeters. 2.tolerances unless dimensions 0.3mm. available types for different carrier frequencies type carrier frequencies (typ) irm-3736t 36 khz irm-3738t 38 khz irm-3740t 40 khz irm-3756t 56 khz
everlight electronics co.,ltd. everlight electronics co., ltd. http:\\www.everlight.com rev 1 page: 3 of 10 device no szdmo-037-031 prepared date 31-august-2007 prepared by liuyan irm-37xxt series absolute maximum ratings (ta=25 ) parameter symbol rating unit notice supply voltage vcc 0~6 v operating temperature topr -25 ~ +80 storage temperature tstg -40 ~ +85 soldering temperature tsol 260 4mm from mold body less than 10 seconds recommended operating condition supply voltage rating: vcc 2.7v to 5.5v electro-optical characteristics (ta=25 , and vcc=3v) parameter symbol min. typ. max. unit condition consumption current icc --- 1.0 1.2 ma no signal input peak wavelength p --- 940 --- nm l 0 14 --- --- reception distance l 45 6 --- --- m half angle(horizontal) h --- 45 --- deg at the ray axis *1 half angle(vertical) v --- 45 --- deg high level pulse width t h 400 --- 800 s low level pulse width t l 400 --- 800 s at the ray axis *2 high level output voltage v h 2.7 --- --- v low level output voltage v l --- --- 0.5 v notes: *1:the ray receiving surface at a vertex and relation to the ray axis in the range of = 0 and =45 . *2:a range from 30cm to the arrival distance. average value of 50 pulses.
everlight electronics co.,ltd. everlight electronics co., ltd. http:\\www.everlight.com rev 1 page: 4 of 10 device no szdmo-037-031 prepared date 31-august-2007 prepared by liuyan irm-37xxt series test method the specified electro-optical characteristics is satisfied under the following conditions at the controllable distance. c measurement place a place that is nothing of extreme light reflected in the room. d external light project the light of ordinary white fluorescent lamps which are not high frequency lamps and must be less then 10 lux at the module surface. (ee Q10lux) e standard transmitter a transmitter whose output is so adjusted as to vo=400mvp-p and the output wave form shown in fig.-1.according to the measurement method shown in fig.-2 the standard transmitter is specified. however , the infrared photodiode to be used for the transmitter should be o p=940nm, ' o =50nm. also, photodiode is used of pd438b(vr=5v). (standard light / light source temperature 2856 qk). f measuring system according to the measuring system shown in fig.-3 block diagram vs modulated ir signal min 10 pulses carrier frequency f0 out in gnd input cga & filter demodulator oscillator agc/atc & digital control c
everlight electronics co.,ltd. everlight electronics co., ltd. http:\\www.everlight.com rev 1 page: 5 of 10 device no szdmo-037-031 prepared date 31-august-2007 prepared by liuyan irm-37xxt series application circuit carrier frequency is adjusted to center frequency of each product. ir tansmitter output wave form output pulse of device rc filter should be connected closely between vcc pin and gnd pin. fig.-1 transmitter wave form d.u.t output pulse duty=0.5 standard transmitter oscilloscope vout 10uf +5.0 0.1v 10k 20cm 1 0 0 k d.u.t ?3?? 3??? ???3?? ? gnd vcc out vout e3???3a3?
??313????3?? fig.-2 measuring method fig.-3 measuring system
everlight electronics co.,ltd. everlight electronics co., ltd. http:\\www.everlight.com rev 1 page: 6 of 10 device no szdmo-037-031 prepared date 31-august-2007 prepared by liuyan irm-37xxt series the notice of application: transmission of remote control signal consist of four parts: encode part, ir transmitter source, irm device, decode part 1. when irm-37xxt series code select frequency, it need to well understand the center system of encode part. 2. strong or weak light of ir transmitter can affect distance of transmission. 3. when using irm-37xxt series device, it requires the composition of code pattern to reach the demand as follows: minimum t burst ( number of pulses per burst) minimum t burst_gap ( number of pulses between two burst) minimum t pause 10 pulses 14 pulses 25 msec 4. it needs to ensure the translation range of decode part if it is applied to the pulse-width range. if the above items hardly assure of its application, it?ll cause ng(no good) message from the edge of signal. irm-37xxt series code property: data format data format nec o sony 12 bit o rc5 _ philips o sony 15 bit x rc6 _ philips o sony 20 bit x rca _ thomson x matsushita o toshiba o mitsubishi o sharp o zenith o jvc o high data rate (4000 bit/s) x
everlight electronics co.,ltd. everlight electronics co., ltd. http:\\www.everlight.com rev 1 page: 7 of 10 device no szdmo-037-031 prepared date 31-august-2007 prepared by liuyan irm-37xxt series typical electro-optical characteristics curves fig.-4 relative spectral sensitivity vs. wavelength fig.-5 relative transmission distance vs. direction angle 333333 (deg) -20 relative transmission distance (%) -60 0 80 40 20 60 -40 020 60 40 fig.-6 output pulse length vs. arrival distance fig.-7 arrival distance vs. supply voltage ? transmission distance lc (m) ? ?? ? ?????? output pulse width t wl ( sec) transmission distance lc (m) 3.8 supply voltage vcc (v) 2.7 0 3.33.0 3.5 4.4 4.1 4.7 5.0 5.3 5.5 ? ?? ? ?
everlight electronics co.,ltd. everlight electronics co., ltd. http:\\www.everlight.com rev 1 page: 8 of 10 device no szdmo-037-031 prepared date 31-august-2007 prepared by liuyan irm-37xxt series typical electro-optical characteristics curves fig.-8 relative transmission distan ce vs. center carrier frequency irm-3736t irm-3738t relative transmission distance (%) center carrier frequency (khz) relative transmission distance (%) center carrier frequency (khz) irm-3740t irm-3756t
everlight electronics co.,ltd. everlight electronics co., ltd. http:\\www.everlight.com rev 1 page: 9 of 10 device no szdmo-037-031 prepared date 31-august-2007 prepared by liuyan irm-37xxt series typical electro-optical characteristics curves ambient temperature ta (c) ? ? ??? ?? ? transmission distance lc (m) fig.-9 arrival distance vs. ambient temperature reliability test item and condition the reliability of products shall be satisfied with items listed below. confidence level90% ltpd 10% test items test conditions failure judgement criteria samples(n) defective(c) temperature cycle 1 cycle -40 +100 (15min)(5min)(15min) 300 cycle test n=22,c=0 high temperature test temp: +100 vcc:6v 1000hrs n=22,c=0 low temperature storage temp: -40 1000hrs n=22,c=0 high temperature high humidity ta: 85 ,rh:85% 1000hrs n=22,c=0 solder heat temp: 260 5 10sec 4mm from the bottom of the package. l 0 Q l 0.8 l 45 Q l 0.8 l: lower specification limit n=22,c=0
everlight electronics co.,ltd. everlight electronics co., ltd. http:\\www.everlight.com rev 1 page: 10 of 10 device no szdmo-037-031 prepared date 31-august-2007 prepared by liuyan irm-37xxt series packing quantity specification 1. 1500 pcs/1box 2. 10 boxes/1carton label form specification cpn: customer?s production number p/n : production number qty: packing quantity cat: ranks hue: none irm-37xxt ref: reference lot no: lot number made in taiwan: production place notes 1. above specification may be changed without notice. everlight will reserve authority on material change for above specification. 2. when using this product, please observe the absolute maximum ratings and the instructions for using outlined in these specification sheets. everlight assumes no responsibility for any damage resulting from use of the product which does not comply with the absolute maximum ratings and the instructions included in these specification sheets. 3. these specification sheets include material s protected under copyright of everlight corporation. please don?t reproduce or cause anyone to reproduce them without everlight?s consent. everlight electronics co., ltd. tel : 886-2-2267-2000, 2267-9936 of f i ce: n o 25, lane 76, sec 3, c hung yang rd, fax: 886-2267-6244, 2267-6189, 2267-6306 tucheng, taipei 236, taiw an, r.o.c http:\\www.everlight.com
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