AFBR-1644Z and afbr-2644z dc, 50 megabaud versatile link fiber optic transmitter and receiver for 1 mm pof data sheet description the AFBR-1644Z transmitter utilizes a 650 nm led source with integrated optics and driver ic for effi cient coupling into 1 mm polymer optical fiber (pof). the afbr-2644z receiver consists of an ic with an integrated photodiode to produce a logic compatible output. the transmitter input and receiver output are compatible with ttl logic families. the pair operates any type of signal from dc up to 50 mbd at distances up to 50 meters with 1 mm pof. the afbr-xx44z deliver non inverted output signals. the transmitter is a 3-pin and the receiver is a 4-pin device, packed in versatile link housing. versatile link compo- nents can be interlocked (n-plexed together) to minimize space and to provide dual connections with the duplex connectors. various simplex and duplex connectors, as well as pof cables are available for versatile link compo- nents. please contact avago technologies for details or visit our company website at www.avagotech.com features ? rohs-compliant ? data transmission at signal rates from dc up to 50 mbd ? transmitter: integrated 650nm led and driver ic with ttl input logic ? receiver: integrated pin diode and digitalizing ic with ttl output logic ? up to 50 meters distance with 1 mm plastic optical fiber (pof) ? operating temperature range of -40 c to +85 c ? compatible with avagos versatile link family of connectors, for easy termination of fi ber applications optical transmitter and receiver for 50 mbd systems and below ? industrial control and factory automation ? extension of rs-232 and rs-485 ? high voltage isolation ? elimination of ground loops ? reduces voltage transient susceptibility
2 ?? valox ? is a registered trademark of the general electric company. package and handling information the versatile link package is made of a fl ame retardant valox ? ul 94 v-0 material (ul fi le # e121562) and uses the same pad layout as a standard, eight pin dual-in-line package. these versatile link packages are stackable and are enclosed to provide a dust resistant seal. snap action simplex, simplex latching, duplex, and duplex latching connectors are off ered with simplex or duplex cables. package housing color versatile link components and simplex connectors are color coded to eliminate confusion when making connec- tions. receivers are black and transmitters are grey. handling versatile link components are auto-insertable. when wave soldering is performed with versatile link compo- nents, the optical port plug should be left in to prevent contamination of the port. do not use refl ow solder processes (i.e., infrared refl ow or vapor-phase refl ow). non-halogenated water soluble fl uxes (i.e., 0% chloride), not rosin based fl uxes, are recommended for use with versatile link components. versatile link components are moisture sensitive devices and are shipped in a moisture sealed bag. if the compo- nents are exposed to air for an extended period of time, they may require a baking step before the soldering process. refer to the special labeling on the shipping tube for details. interlocked (stacked) assemblies (refer to figure 1) initially engage the inter-locking mechanism by sliding the l bracket body from above into the l slot body of the lower package. stacked horizontal packages can be dis- engaged if necessary. repeated stacking and unstacking causes no damage to individual units. figure 1. interlocked (stacked) tilted (30) package
3 mechanical dimensions printed circuit board layout dimension pin description transmitter fiber port facing front, pins downward, 1 = rightmost pin to 4 = leftmost pin pin name function/description notes 1v cct transmitter power 3.3 v 5% or 5 v 5% 2 no pin no physical pin is available 3v eet transmitter ground 4 data in transmitter data input 1, 2 5 nc not connected, physical pin is available 3 8 nc not connected, physical pin is available 3 pin description receiver fiber port facing front, pins downward, 1 = rightmost pin to 4 = leftmost pin pin name function/description notes 1 data out receiver data output 2 2v eer receiver ground 3v ccr receiver power 3.3 v 5% or 5 v 5% 4 nc not connected, physical pin is available 4 5 nc not connected, physical pin is available 3, 4 8 nc not connected, physical pin is available 3, 4 tx 3 4 21 rx 3 4 21 7.62 (0.300) 2.54 (0.100) 0.4 (0.02) 5.2 (0.21) 10.2 (0.40) b 18.7 (0.74) 30 q 2 (0.08) ? 0.7 (0.03) 0.5 (0.02) 6.6 (0.26) 2.8 (0.11) 15.2 (0.60) 4.6 (0.18) 0.6 (0.03) a 1.1 (0.05) 2.2 (0.09) 19.3 (0.76) 1.3 (0.05) 8.7 (0.34) 10.1 (0.40) dimensions in millimeters (inches). 7.62 (0.300) 2.54 (0.100) 0.5 (0.02) 8.7 (0.34) 1.01 (0.040) bottom view 1.01 (0.040) dia. dia.
4 regulatory compliance feature test method performance electrostatic discharge (esd) to the electrical pins human body model mil-std-883 method 3015 min +/- 2000 v eye safety iec 60825-1, 2, class 1 specifi ed link performance, t a = -40 c to +85 c, 50 mbd parameter min max unit condition note link distance with extra low loss pof cable 0.1 50 meters -40 c to +85 c 5 link distance with standard loss pof cable 0.1 45 meters -40 c to +85 c 5 notes: 1. logic 1 input will turn the light on and the logic 0 will turn the light off for AFBR-1644Z. 2. ttl compatible data input and output. 3. pin 5 and 8 are for mounting and retaining purposes, and should be electrically connected to pcb ground. 4. it is recommended to connect this pin to ground. 5. pof is hfbr-r/exxyyyz plastic (1 mm) optical fi ber. worst case attenuation used (0.23 db/m for extra low loss pof and 0.27 db/m for standard loss pof cable from -40 c to +85 c at 660 nm). figure 2. recommended transmitter and receiver application circuit 4 vee tx data in vcc nc 3 2 1 10 p f c5 1 p h l1 gnd gnd 8 gnd gnd vcc 10 p f c1 gnd 100 nf c3 gnd gnd ttl input ttl output gnd 5 pull down resistor 4.7 kohm 4 vcc rx nc data out vee 2 3 1 10 p f c6 1 p h l2 gnd gnd 8 gnd gnd vcc 10 p f c2 gnd 100 nf c4 gnd gnd gnd 5
5 absolute maximum ratings parameter symbol min typical max unit notes storage temperature ts -40 85 c 6 ambient temperature tc -40 85 c 6 relative humidity rh 0 85 % 6 supply voltage v cct /v ccr -0.5 6 v 6 data input voltage v in -0.5 vcc+0.5 v 6 data output current i o 10 ma 6 data rate dc 50 mbaud notes: 6. absolute maximum ratings are those values beyond which damage to the device may occur if these limits are exceeded for other than a short period of time. recommended operating conditions parameter symbol min typical max unit notes ambient temp t a -40 25 85 c 7 supply voltage v cct /v ccr 3.135 3.3 3.465 v 7 4.75 5 5.25 v 7 notes: 7. recommended operating conditions are those values outside of which functional performance is not intended, device reliabilit y is not implied, and damage to the device may occur over an extended period of time. see reliability data sheet for specifi c reliability performance. process compatibility parameter symbol min typical max unit notes solder environment t sold 260 c 8, 10, 11 t sold 10 sec 9, 10, 11 notes: 8. maximum temperature refers to peak temperature. 9. maximum time refers to time spent at peak temperature. 10. solder surface to be at least 1mm below lead frame stops. 11. product is moisture sensitive level 3.
6 AFBR-1644Z transmitter the AFBR-1644Z transmitter incorporates a 650 nm led and integrated driver ic in a light gray, nonconductive plastic versatile link housing. its input data is compatible with ttl logic level. this transmitter can operate from dc to 50 mbd with any kind of data pattern using 1 mm plastic optical fi ber (pof). within the specifi ed ranges the AFBR-1644Z device will support a ber < 10e-9. transmitter electrical characteristics (t a = -40 c to +85 c, v cct = 3.3 v 5% or 5 v 5%) parameter symbol min typical max unit notes supply current (optical power on) i cct 21 31 ma 1 input voltage C low v il -0.3 0.8 v 2 input voltage C high v ih 2.0 vcc+0.3 v 2 data input capacitance c in 7pf data input resistance r in 2 k ? propagation delay t td 30 ns transmitter optical characteristics (t a = -40 c to +85 c, v cct = 3.3 v 5% or 5 v 5%) parameter symbol min typical max unit notes output optical power (peak), p n -5.5 -2 +2 dbm 3 output optical power (average), off p s -50 dbm extinction ratio er 10 db peak wavelength ? c 630 685 nm rise time (20%C80%) t rt 5ns fall time (20%C80%) t ft 5ns pulse width distortion pwd -3 +3 ns 4, 5 pulse width distortion of fi rst pulse pwd -5 +3 ns 5, 6 notes: 1. for any type of data between dc and 50 mbaud. typical value 21 ma for prbs-7 pattern at 25 c at 5 v and 50 mbaud. 2. standard ttl compatible input. 3. measured after 1meter 0.5 na 1mm pof with polished connector end face. 4. pulse width is measured at 50% threshold using a rising edge trigger tested with prbs-7 pattern 5. electrical input pulse width is determined at 1.5 v and du/dt between 1 v and 2 v shall not be less than 1 v/ns. 6. the fi rst pulse is shorter as the led is completely discharged. this helps to mitigate the increase of pulse width of the fi rst pulse of the receiver
for product information and a complete list of distributors, please go to our web site: www.avagotech.com avago, avago technologies, and the a logo are trademarks of avago technologies in the united states and other countries. data subject to change. copyright ? 2005-2012 avago technologies. all rights reserved. av02-3690en - june 29, 2012 afbr-2644z receiver the afbr-2644z receiver consists of a digitalizing ic with integrated photodiode to produce an output level that is compatible with ttl logic. the integrated photodiode and the following amplifi er uses a fully diff erential approach with an active and a passive area for an improved emi performance. within the specifi ed range the afbr-2644z device will support a ber <10e-9. receiver electrical characteristics (t a = -40 c to +85 c, v cct = 3.3 v 5% or 5 v 5%) parameter symbol min typical max unit notes supply current i ccr 20 30 ma data output voltage C low v ol -0.3 0.4 v 1 data output voltage C high v oh 2.5 v ccr +0.3 v 1 rise time (10%C90%) t rr 5 ns 2, 3 fall time (10%C90%) t fr 5 ns 2, 3 pulse width distortion pwd -4 +4 ns 6, 7, 8 pulse width distortion 1 st to 3 rd pulse pwd init -5 +8 ns 8, 9 propagation delay t rd 30 ns receiver optical characteristics (t a = -40 c to +85 c, v cct = 3.3 v 5% or 5 v 5%) parameter symbol min typical max unit notes input optical power (peak) p in -22 +1 dbm input optical power off -state p in _off -40 dbm 10 optical spectrum range ? 630 685 nm notes: 1. standard ttl output. 2. measured with r l = 50 k ? and c l = 15 pf 3. optical power generated by a standard avago technologies transmitter, with ideal alignment to the photodiode using a 1 mm po f (na = 0.5). 6. optical input of 50 mbaud prbs-7 pattern and 50% duty cycle. 7. pulse width is measured at 50% threshold using a rising edge trigger and prbs-7 pattern. 8. if data rate is below 1mbaud the pulse width distortion would be equal to the pulse width distortion of the 1st to 3rd puls es for higher datarates. 9. the threshold of the 1st pulse of a data sequence is diffi cult to adjust and therefore the pulse width distortion up to the 3rd pulse is higher than for all other pulses (worst case for the 1st pulse). this strongly depends on the quality of the rising and falling edge of the optical input. the faster the edges the smaller the pulse width variation. furthermore lower data rates would result in the same issue as all the pulse b ecome 1st pulses. 10. output low for afbr-2644z.
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