good take HM338 photo module for pcm remote control systems description features special features photo detector and preamplifier in one package enhanced immunity against all kinds of internal filter for pcm frequency disturbance light ttl and cmos compatibility no occurrence of disturbance pulses at output active low the output wide supply voltage & low current dissipation suitable burst length 10 cycles/burst applications tv, vtr, acoustic devices, air conditioner, car stereo units, computers, interior controlling appliances, and all appliances that require remote controlling block diagram the HM338 is miniaturized receiver fo r use infrared carrier frequency pcm remote control systems. a photo pin diode and a low noise 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. the main benefit is the reliable function even in disturbed ambient and the protection against uncontrolled output pulses. www.datasheet.co.kr datasheet pdf - http://www..net/
good take HM338 application circuit *) recommended to suppress power supply disturbance absolute maximum ratings tamb = 25 parameter test conditions symbol value unit supply voltage (pin 3) vs 6.0 v supply current (pin 3) is 5 ma output voltage (pin 1) vo 6.0 v storage temperature range tstg -30?+105 operating temperature range tamb -25?+85 power consumption (tamb &?
ptot 50 mw soldering temperature t &? t n n g s p n d b t f tsd 260 basic characteristics tamb = 25 parameter test conditions symbol min typ max unit supply current (pin3) vs = 5v, ev = 0 i sd 0.7 1.1 2 ma supply voltage (pin3) vs 2.7 5.5 v transmission distance ir diode at205, i f = 400 ma d 20 m output voltage high (pin1) vs = 5v v osh 4.5 v output voltage low (pin1) i osl = 2 ma, f = fo, tp/t = 0.4 v osl 250 mv level output pulse width t wh 500 800 s level output pulse width burst wave= 600s, period= 1.2ms ee=0.3~200mw/cm 2 t wl 500 800 s carrier frequency fo 37.9 khz peak wavelength 940 nm directivity angle of half transmission distance 1/2 45 deg www.datasheet.co.kr datasheet pdf - http://www..net/
good take HM338 reliability test test item test condition test time sample num ok num high temperature storage ta=+85 t=240h 22 22 low temperature storage ta=-25 t=240h 22 22 resistance to soldering heat soak into solder tub of tsd=260 1cycle 5sec 22 22 electro static discharge hbm c=100pf, r=1.5k ? , 2kv, each pin test once 22 22 high temperature/humidity* ta=+85 , 90%rh t=240h 22 22 heat cycle* -25 ~+85 (0.5h) 20cycle 22 22 note : *(electro-optical characteris tics) shall be satisfied after leaving 2 hours in the normal temperature package outline note: tolerance 0.3mm www.datasheet.co.kr datasheet pdf - http://www..net/
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