HFBR-0508Z series hfbr-1528z transmitter hfbr-2528z receiver 10 megabaud versatile link fiber optic transmitter and receiver for 1 mm pof and 200 m hcs data sheet features rohs-compliant data transmission at signal rates of dc to 10 mbd up to 50 meters distances with 1 mm plastic optical fiber (pof) up to 500 meters distances with 200 m hard clad silica (hcs ) wide dynamic range receiver allows operation from zero to maximum link distance with a single transmitter drive current link distances specified for variations in temperature, power supply, and fiber attenuation dc coupled receiver with cmos/ ttl output for easy designs: no data encoding or digitizing circuitry required pulse width distortion controlled to limit distortion from low duty cycle or burst mode data high noise immunity compatible with avago? versatile link family of connectors, for easy termination of fiber applications industrial control and factory automation serial field buses intra-system links; board-to- board, rack-to-rack extension of rs-232, rs-485 elimination of ground loops high voltage isolation reduces voltage transient susceptibility caution:. it is advised that normal static precautions be taken in handling and assembly of these components to prevent damage and/or degradation which may be induced by esd. hcs is a registered trademark of spectran corporation. description the HFBR-0508Z series consists of a fiber-optic transmitter and receiver operating at a 650 nm wavelength (red). the hfbr- 1528z transmitter is an led in a low cost plastic housing designed to efficiently couple power into 200 m diameter hcs and 1 mm diameter pof. the hfbr-2528z receiver incorporates a pin detec- tor and digital output ic compat- ible with cmos and ttl logic families. HFBR-0508Z links operate from dc to 10 mbd at distances up to 50 meters with 1 mm pof and up to 500 meters with 200 m hcs . no minimum link distances are required when using recom- mended circuits, simplifying design. versatile link components can be interlocked (n-plexed together) to minimize space and to provide dual connections with the duplex connectors. up to eight packages can be interlocked and inserted into a printed circuit board. pof and hcs are available in pre- connectored lengths or can be easily field-terminated. a single transmitter drive current for pof and hcs allows both fibers to be used with a single design.
2 notes: 1. typical data at +25 c, v cc = 5 v. 2. with recommended transmitter and receiver application circuits (60 ma nominal drive current). 3. pof is hfbr-r/exxyyyz plastic (1 mm) optical fiber. worst case attenuation used (0.23 db/m from -40 c to +85 c at 660 nm). 4. hcs is hfbr-h/vxxyyyz hard clad silica (200/230 m) fiber. worst case attenuation is used (10 db/km from 0 c to +70 c and 12 db/km from -40 c to +85 c at 650 nm). 5. ber 10 -9 , 2 23 - 1 prbs nrz 10 mbd. 6. for i f ,pk > 60 ma, the duty factor must maintain i f, a v 60 ma and pulse with 1 s. 7. 1.6 mm below seating plane. HFBR-0508Z series 10 mbd data link typical link performance, t a = +25 c parameter symbol typ. [1] unit condition note signaling rate f s 15 mb/s nrz 2 link distance with extra low loss pof cable 100 m 10 mbd 2, 3, 5 link distance with 200 m hcs cable 900 m 10 mbd 2, 4, 5 specified link performance, t a = -40 to +85 c, dc to 10 mbd, unless otherwise noted. parameter symbol min. max. unit condition note signaling rate f s dc 10 mb/s nrz 2 link distance with extra low 0.1 50 m +25 c 2, 3, 5 loss pof cable 0.1 40 0 to +70 c 0.1 30 -40 to +85 c link distance with 200 m0.1 500 m +25 c 2, 4, 5 hcs cable 0.1 300 0 to +70 c 0.1 100 -40 to +85 c pulse width distortion pwd -30 +30 ns 25 ?75% duty cycle 2 -50 +50 ns arbitrary duty cycle absolute maximum ratings parameter symbol min. max. unit note storage and operating temperature t s,o -40 +85 c receiver supply voltage v cc - 0.5 +5.5 v receiver average output current i o,avg -16 +16 ma receiver output power dissipation p od 80 mw transmitter peak forward input current i f,pk 90 ma 6 transmitter average forward input current i f,avg 60 ma transmitter reverse input voltage v r 3v lead soldering cycle temp t sol +260 c7 time 10 sec 7 recommended operating conditions parameter symbol min. max. unit condition note ambient temperature t a -40 +85 c power supply voltage v cc 4.75 5.25 v <100 mv p-p noise transmitter peak forward current i f ,pk 20 90 ma 6 transmitter average forward current i f,av 60 ma fanout (7400 series ttl) n 1
3 hard clad silica (hcs) fiber. this transmitter can be operated up to 10 mbd using a simple driver circuit. the hfbr-1528z is com- patible with all versatile link connectors. anode 1 cathode 2 ground 3 ground 4 8 ground 5 ground see note 5 hfbr-1528z transmitter, top view hfbr-1528z transmitter the hfbr-1528z transmitter incorporates a 650 nm led in a light gray, nonconductive plastic housing. the high light output power enables the use of both plastic optical fiber (pof) and electrical and optical characteristics: t a = -40 to +85 c unless otherwise noted. parameter symbol min. typ. [1] max. units t a ( c) conditions note peak output power p t - 6.0 -3.5 0.0 dbm +25 i f, dc = 60 ma 2, 3 - 6.9 +0.5 0 to +70 -7.2 +1.3 -40 to +85 peak output power p t -15.6 -9.0 -2.0 dbm +25 i f,dc = 20 ma 2, 3 -16.5 -1.5 0 to +70 -16.8 -0.7 -40 to +85 peak output power p t -16.1 -12.5 -8.5 dbm +25 i f,dc = 60 ma 2, 3 -17.0 -8.0 0 to +70 -17.3 -7.2 -40 to +85 optical power tem- ? p t / ? t -0.40 %/ c -0.02 db/ c peak emission p 640 650 660 nm 0 to +70 635 662 -40 to +85 peak wavelength ? / ? t 0.12 nm/ c temperature coefficient spectral width fwhm 21 nm fig. 3 forward voltage v f 1.8 2.1 2.65 v i f,dc = 60 ma fig. 1 forward voltage tem- ? v f / ? t -1.8 mv/ c fig. 1 perature coefficient reverse input break- v br 3.0 13 v i f,dc = -10 a down voltage diode capacitance c o 60 pf v f = 0 v, f = 1 mhz transmitter na 0.5 numerical aperture thermal resistance, jc 140 c/w 4 junction to case 50 ? optical rise time t r 13 ns 10% to 90%, i f = 60 ma 50 ? optical fall time t f 10 ns notes: 1. typical data are at 25 c. 2. optical power measured at the end of 0.5 meters of 1 mm diameter plastic or 200 m diameter hard clad silica fiber with a large area detector. 3. minimum and maximum values for p t over temperature are based on a fixed drive current. the recommended drive circuit has temperature compensation which reduces the variation in p t over temperature; refer to figures 4 and 6. 4. typical value measured from junction to pc board solder joint for horizontal mount package, hfbr-1528z. 5. pins 5 and 8 are for mounting and retaining purposes, but are electrically connected; pins 3 and 4 are electrically isolated. it is recommended that pins 3, 4, 5 and 8 all be connected to ground to reduce coupling of electrical noise. 6. refer to the ?lastic optical fiber and hcs fiber cable and connectors for versatile link?technical data sheet for cable con nector options for 1 mm plastic and 200 m hcs optical fiber. 1 mm pof, 60 ma 1 mm pof, 20 ma 200 m hcs, 60 ma fig. 2 fig. 2 fig. 2 perature coefficient wavelength fig. 3
4 warning: when viewed under some conditions, the optical port may expose the eye beyond the maximum permissible exposure recommended in ansi z136.2, 1993. under most viewing conditions there is no eye hazard. figure 6. recommended transmitter drive circuit (i f,on = 60 ma nominal at t a = 25 c). figure 5. typical optical pulse width distortion vs. temperature and power supply voltage (in recommended drive circuit). v cc value 1 4 2 3 8 5 data c1 r1 hfbr-1528 tolerance r1 r2 2 k ? 47 ? 5 % 1 % 68 5 7 r2 c2 4 c1 c2 0.1 ? 1.0 ? 20 % 20 % 1/2 sn75451 figure 4. typical normalized optical power vs. temperature (in recommended drive circuit). figure 3. typical normalized optical spectra. v f ?forward voltage ?v 1 2.1 1.5 i f,dc ?transmitter drive current ?ma 10 100 2.5 1.7 2.3 1.9 25?c 0?c 70?c 85?c -40?c figure 2. typical normalized optical power vs. drive current. figure 1. typical forward voltage vs. drive current. normalized spectral output power 610 1.2 0.6 0 wavelength (nm) 630 650 670 690 1.0 0.2 0.8 0.4 1.4 25?c 0?c -40?c 70?c 85?c normalized output power -40 1.2 0.9 0.7 temperature ?? -20 20 60 1.1 0.8 1.0 04080 v cc = 5.25 v v cc = 5.0 v v cc = 4.75 v p t ?normalized output power ?db 1 -10 -40 i f,dc ?transmitter drive current ?ma 10 100 10 -30 0 -20 25?c 85?c -40?c pwd ?ns -40 2 -1 -5 temperature ?? 20 1 -2 0 60 -3 -4 v cc = 5.25 v v cc = 5.0 v v cc = 4.75 v 040 80 -20
5 hfbr-2528z receiver the hfbr-2528z receiver consists of a silicon pin photodiode and digitizing ic to produce a logic compatible output. the ic includes a unique circuit to correct the pulse width distortion of the first bit after a long idle period. this enables operation from dc to 10 mbd with low pwd for arbitrary data patterns. the receiver output is a ?ush- pull?stage compatible with ttl and cmos logic. the receiver housing is a dark, conductive plastic, compatible with all versatile link connectors. hfbr-2528z receiver, top view no connect 4 v cc 3 ground 2 v o 1 ground 5 ground 8 see notes 5,7 ic electrical and optical characteristics: t a = -40 to +85 c, 4.75 v < v cc < 5.25 v, unless otherwise noted. parameter symbol min. typ .[1] max. unit t a ( c) condition note fig. peak pof sensitivity: p rl,min -23.0 -21.0 dbm +25 1 mm pof, 2,6 2,4 minimum input for -20.0 0 to +70 |pwd| < 30 ns logic ? -19.5 -40 to +85 peak pof overdrive p rl,max +1.0 +5.0 dbm +25 1 mm pof, 2,3, 1,2, limit:maximum +0.0 0 to +70 |pwd| < 30 ns 6 3 input for logic ? -1.0 -40 to +85 peak pof off state p rh,max -42 dbm 1 mm pof 2,6, limit: maximum 8 input for logic ? peak hcs p rl,min -25.0 -23.0 dbm +25 200 m hcs, 2,6 sensitivity: minimum -22.0 0 to +70 |pwd| < 30 ns input for logic ? -21.5 -40 to +85 peak hcs overdrive p rl,max -1.0 +3.0 dbm +25 200 m hcs, 2,3, limit: maximum -2.0 0 to +70 |pwd| < 30 ns 6 input for logic ? -3.0 -40 to +85 peak hcs off state p rh,max -44 dbm 200 m hcs 2,6, limit: maximum 8 input for logic ? supply current i cc 27 45 ma v o = open high level output v oh 4.2 4.7 v i o = -40 a vo ltage low level output v ol 0.22 0.4 v i o = +1.6 ma vo ltage output rise time t r 12 30 ns c l = 10 pf 6 output fall time t f 10 30 ns c l = 10 pf 6 thermal resistance, jc 200 c/w 4 junction to case electric field e max 8 v/m near field, 5 immunity electrical field source power supply psni 0.1 0.4 v pp sine wave 6 noise immunity dc - 10 mhz notes: 1. typical data are at +25 c, v cc = 5.0 v. 2. input power levels are for peak (not average) optical input levels. for 50% duty cycle data, peak optical power is twice the average optical power. 3. receiver overdrive (p rl,max ) is specified as the limit where |pwd| will not exceed 30 ns. the receiver will be in the correct state (logic ?? for optical powers above p rl,max . however, it may not meet a 30% symbol period pwd if the overdrive limit is exceeded. refer to figure 2 for pwd performance at high received optical powers. 4. typical value measured from junction to pc board solder joint for horizontal mount package, hfbr-2528z. 5. pins 5 and 8 are electrically connected to the conductive housing and are also used for mounting and retaining purposes. it i s required that pins 5 and 8 be connected to ground to maintain conductive housing shield effectiveness. 6. in recommended receiver circuit, with an optical signal from the recommended transmitter circuit. 7. pin 4 is electrically isolated internally. pin 4 may be externally connected to pin 1 for board layout compatibility with hfb r-25x1z, hfbr-25x2z and hfbr-25x4z. otherwise it is recommended pin 4 be grounded as in figure 5. 8. ber 1 0e-9, includes a 10.8 db margin below the receiver switching threshold level (signal to noise ratio = 12).
6 figure 5. recommended receiver application circuit. figure 4. typical pof receiver pulse width distortion vs. power supply voltage at low optical power, (-21 dbm,pk, 10 mbd). figure 3. typical pof receiver pulse width distortion vs. power supply voltage at high optical power (0 dbm,pk, 10 mbd). received pwd ?ns -22 30 10 -30 p rl ?receiver optical input power ?dbm -18 20 0 -2 -10 -20 -14 -10 -6 2 v cc value 4 1 3 2 5 8 ic data c1 r1 hfbr-2528 tolerance r1 c1 2.7 ? 0.1 ? 5 % 20 % received power ?dbm -40 6 4 0 temperature ?? -20 5 3 100 2 1 020406 080 v cc = 5.25 v v cc = 5.0 v v cc = 4.75 v figure 2. typical pof receiver pulse width distortion vs. optical power at 10 mbd. figure 1. typical pof receiver overdrive, p rl,max , at 10 mbd, vs. temperature and power supply voltage. pwd ?ns 4.7 16 9 v cc ?volts 4.8 5.5 5.0 5.1 5.3 4.9 5.2 5.4 13 12 11 10 14 15 pwd ?ns 4.7 -13 -18 v cc ?volts 4.8 -14 -15 5.5 -16 -17 5.0 5.1 5.3 4.9 5.2 5.4
7 6.5 (0.255) 10.2 (0.400) 4.2 (0.165) 1.27 (0.050) 2.5 (0.100) 0.51 (0.020) pin no.1 indicator 18.9 (0.743) 2.0 (0.080) 7.62 (0.300) 0.64 (0.025) 7.62 (0.300) 3.0 (0.118) 1.73 (0.068) 0.64 (0.025) dia. note: all dimensions in mm (inches). all dimensions ?0.25 mm unless otherwise specified. 5.1 (0.200) 3.81(0.150) max. 3.56 (0.140) min. transmitter hfbr-1528 receiver hfbr-2528 1 2 3 4 5 8 anode cathode ground* ground* ground** ground** signal, v o ground v cc (+5 v) ground* ground** ground** pin no. * no internal connection, ground connection recommended. ** pins 5 and 8 connected internally to each other. electrical pin functions 4 1 3 2 5 8 7.62 (0.300) 1.01?(0.040) dia. 1.85 (0.073) min. top view 2.54 (0.100) 7.62 (0.300) figure 6. hfbr-2528z receiver block diagram. v ersatile link mechanical dimensions versatile link printed circuit board layout dimensions 3 v cc pin photodiode amplifier com- parator 8 ground 1 v o, data 2 ground 5 ground reference voltage threshold generator first bit burst pwd correction
for product information and a complete list of distributors, please go to our website: www.avagotech.com avago, avago technologies, and the a logo are trademarks of avago technologies, pte. in the united states and other countries. data subject to change. copyright ?2006 avago technologies pte. all rights reserved. 5989-4632en 1/24/06
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