good take HKTX179S fiber optic transmitting module features 1) conform to eiaj standard cp-1201 (for digital audio interfaces including fiber optic inter-connections). 2) ttl interface. 3) led is driven by differential circuit. 4) +5v single power supply. 5) high speed signal transmission (12.5m nrz signal) . 6) esd tolerance ic > 8kv. 7) standard package (panel mount type). applications 1) digital audio equipment: cd, md and dvd player to sound applications for personal computers and comp uter entertainment systems. 2) navigation system. absolute maximum ratings (ta=25 o c) characteristic symbol rating units supply voltage vcc -0.5 to +7 v input voltage v in -0.5 to vcc+0.5 v operating temperature topr -20 to +70 o c storage temperature tstg -30 to +80 o c *soldering temperature tsol 260 o c * t=5sec 1/5 09/07/2005 rev.1.1 www.datasheet.co.kr datasheet pdf - http://www..net/
good take HKTX179S recommended operating conditions and electrical cha racteristics (ta=25 o c , vcc=5v) characteristic symbol condition min typ max units operating voltage vcc 2.7 5 5.5 v operating current iop - 8 13 ma transmitter wavelength ? p - 660 - nm transmitter light power pf *1 -21 - -15 dbm data rate t nrz code *2 dc - 12.5 mb/s pulse width distortion tw pulse width 80ns pulse cycle 160ns, c l =10pf using hkrx178d -25 - 25 ns jitter tj - 4 25 ns low to high delay time t plh - 100 180 ns high to low delay time t phl - 100 180 ns high level input voltage v ih 2.0 - - v low level input voltage v il - - 0.8 v high level input current i ih - - 20 a low level input current i il - - -0.4 ma *1: fiber insertion measure peak value. *2: for data rate > 12mb/s(nrz), the duty factor mu st be such as kept 25 to 75%. mechanical characteristics (ta=25 o c) characteristic symbol condition min typ max units insertion force *1 - - 40 n withdrawal force *1 6 - 40 n torque for self-tap using self-tapping screw (m3*8) 60 - 100 n-cm *1: using standard optical fiber cable. (970/1000 u m) 2/5 09/07/2005 rev.1.1 www.datasheet.co.kr datasheet pdf - http://www..net/
good take HKTX179S test circuit test parameters no. test item symbol 1 low to high pulse delay time t plh 2 high to low pulse delay time t phl 3 pulse width distortion ? tw = t phl - t plh ? tw 4 high level output voltage v oh 5 low level output voltage v ol 3/5 09/07/2005 rev.1.1 www.datasheet.co.kr datasheet pdf - http://www..net/
good take HKTX179S HKTX179S outline dimension unit: mm recommended drilling as viewed from the soldering f ace 4/5 09/07/2005 rev.1.1 www.datasheet.co.kr datasheet pdf - http://www..net/
good take HKTX179S block diagram ttl buffer amp in vcc led driver precautions during installation 1) fixing fiber optical transceiving module insert the fiber optic transmitting module HKTX179S into the printed circuit board to fix the module t o the board. solder the fixed pin at 260 or less within 5 seconds. 2) soldering optical modules use semiconductor devices internall y. however, in principle, optical modules are optic al components. at soldering, take care that flux dose not contact the emitting surface or detecting surface. also tak e care at flux removal after soldering. some optical modules come with protective cap. the protective cap is used to avoid malfunction when the optical module is not in use. note that it is not dust or waterproof. as mentioned before, optical modules are optical co mponent. thus, in principle, soldering where there may be flux residue or flux removal after soldering is not reco mmended. good take recommends that soldering be per formed without the optical module mounted on the board. th en, after the board is cleaned, solder the optical module manually. do not perform any further cleaning. if the optical module cannot be soldered manually, use non-haloge n (chlorine- free) flux and make sure, without cleaning, there i s no residue such as chlorine. this is one of the w ays to eliminate the effects of flux. in such a case, check the reliabil ity. 3) solvent when using solvent for flux removal, do not use a h igh acid or high alkali solvent. be-careful not to pour solvent in the optical connector ports. if solvent is inadvertentl y poured there, clean with cotton tips. 4) protective cap when the fiber optic transmitting module HKTX179S i s not in use, use the protective cap. 5) input voltage if a voltage exceeding the maximum rating value (vc c+0.5v) is applied to the transmitter input, the in ternal ic may degrade causing some damage. if excessive voltage d ue to surge may be added to the input, insert a pro tective circuit. 5/5 09/07/2005 rev.1.1 www.datasheet.co.kr datasheet pdf - http://www..net/
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