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description the afct-5961tlz/tgz/atlz/atgz/nlz/ngz are high performance, cost efective modules for serial optical data communications applications specifed for a signal rate of 155 mb/s. they are designed to provide sonet/ sdh compliant intermediate and long reach links at 155 mb/s. all modules are designed for single mode fber and operate at a nominal wavelength of 1300 nm. they in - corporate high performance, reliable, long wavelength optical devices and proven circuit technology to give long life and consistent service. the transmitter section of the afct-5961tlz/tgz/ atlz/atgz/nlz/ngz incorporates a 1300 nm fabry perot (fp) laser. the transmitter has full iec 825 and cdrh class 1 eye safety. the receiver section uses an movpe grown planar pin photodetector for low dark current and excellent re - sponsivity. a pseudo-ecl compatible logic interface simplifes interface to external circuitry. these transceivers are supplied in the new industry standard 2 x 5 dip style package with the lc fber connector interface and is footprint compatible with sff multi source agreement (msa). features ? rohs compliant ? afct-5961tlz/atlz links of 15 km with 9/125 m single mode fber (s1.1) ? afct-5961nlz links of 40 km with 9/125 m single mode fber (l1.1) ? multisourced 2 x 5 package style with lc receptacle ? single +3.3 v power supply ? temperature range: afct-5961tlz: 0 c to +70 c AFCT-5961ATLZ: -40 c to +85 c, afct-5961nlz: -5 c to +70 c ? wave solder and aqueous wash process compatible ? manufactured in an iso9002 certifed facility ? fully class 1 cdrh/iec 825 compliant ? lvpecl compatible signal detect output ? transceivers are available with and without emi nose shield (see ordering information details) applications ? sonet/sdh equipment interconnect, oc-3/sdh stm-1 rate ? long and intermediate reach atm/sonet links ? suitable for fast ethernet applications. afct-5961tlz/tgz/atlz/atgz/nlz/ngz single mode laser small form factor transceivers for atm, sonet oc-3/sdh stm-1 part of the avago technologies metrak family data sheet
2 figure 1. receiver block diagram functional description receiver section design the receiver section for the afct-5961tlz/tgz/atlz/ atgz/nlz/ngz contains an ingaas/inp photo detector and a preamplifer mounted in an optical subassem - bly. this optical subassembly is coupled to a postamp/ decision circuit on a circuit board. the design of the optical assembly is such that it provides better than 14 db optical return loss (orl). the postamplifer is ac coupled to the preamplifer as il - lustrated in figure 1. the coupling capacitors are large enough to pass the sonet/sdh test pattern at 155 mb/ s without signifcant distortion or performance penalty. if a lower signal rate, or a code which has signifcantly more low frequency content is used, sensitivity, jitter and pulse distortion could be degraded. figure 1 also shows a flter function which limits the bandwidth of the preamp output signal. the flter is designed to bandlimit the preamp output noise and thus improve the receiver sensitivity. these components will reduce the sensitivity of the receiver as the signal bit rate is increased above 155 mb/s. noise immunity the receiver includes internal circuit components to flter power supply noise. however under some condi - tions of emi and power supply noise, external power supply fltering may be necessary (see application section). the signal detect circuit the signal detect circuit works by sensing the level of the received signal and comparing this level to a trans - impedanc e pr e- amplifie r gnd lv pe cl outpu t bu ffe r lv pe cl outpu t bu ffe r data ou t sig na l det ec t ci rc ui t sd data ou t photodetector bias filter amplifier
3 figure 2. simplifed transmitter schematic functional description transmitter section design a schematic diagram for the transmitter is shown in figure 2. the afct-5961tlz/tgz/atlz/atgz/nlz/ngz incorporates an fp laser as its optical source. all part numbers have been designed to be compliant with iec 825 eye safety requirements under any single fault condition and cdrh under normal operating condi - tions. the optical output is controlled by a custom ic that detects the laser output via the monitor photodi - ode. this ic provides both dc and ac current drive to the laser to ensure correct modulation, eye diagram and extinction ratio over temperature, supply voltage and operating life. data data lvpecl input laser modulator fp laser laser bias driver laser bias control photodiode (rear facet monitor)
4 figure 3. block diagram package the overall package concept for these devices consists of the following basic elements; two optical subassem - blies, a electrical subassembly and the housing as illus - trated in the block diagram in figure 3. the package outline drawing and pin out are shown in figures 4 and 5. the details of this package outline and pin out are compliant with the mult i source defnition of the 2 x 5 dip. the low profle of the avago technologies transceiver design complies with the maximum height allowed for the lc connector over the entire length of the package. the electrical subassembly consists of high volume multilayer printed circuit board on which the ic and various surface-mounted passive circuit elements are attached. the optical subassemblies are attached to the electrical subassembly. these two units are then ftted within the outer housing of the transceiver. the housing is then encased with a metal emi protective shield. the electrical subassemby carries the signal pins that exit from the bottom of the transceiver. the solder posts are designed to provide the mechanical strength required to withstand the loads imposed on the trans - ceiver by mating with the lc connectored fber cables. although they are not connected electrically to the transceiver, it is recommended to connect them to chassis ground. data ou t signal detect data in data in tx disable quantizer ic laser driver and control circuit pin photodiod e preamplifie r subassembly lase r optical subassembly data ou t lc receptacl e r x suppl y t x suppl y r x ground t x ground laser bias monitoring laser diod e modulato r cas e note note: nose clip provides connection to chassis ground for both emi and thermal dissipation.
5 figure 4. afct-5961tlz/tgz/nlz/ngz/atlz/atgz package outline drawing top view bottom view side view g module - no emi shield side view front view back view dimensions in millimeters (inches) dimensions shown are nominal. all dimensions meet the maximum package outline drawing in the sff msa.
6 pin descriptions: pin 1 receiver signal ground v ee rx: directly connect this pin to the receiver ground plane. pin 2 receiver power supply v cc rx: provide +3.3 v dc via the recommended receiver power supply flter circuit. locate the power supply flter circuit as close as possible to the v cc rx pin. note: the flter circuit should not cause v cc to drop below minimum specifcation. pin 3 signal detect sd: normal optical input levels to the receiver result in a logic 1 output. low optical input levels to the receiver result in a logic 0 output. this signal detect output can be used to drive a lvpecl input on an upstream circuit, such as signal detect input or loss of signal-bar. pin 4 receiver data out bar rd-: no internal terminations are provided. see recommend - ed circuit schematic. pin 5 receiver data out rd+: no internal terminations are provided. see recommend - ed circuit schematic. pin 6 transmitter power supply v cc tx: provide +3.3 v dc via the recomme n ded transmitter power supply flter circuit. locate the power supply flter circuit as close as possible to the v cc tx pin. pin 7 transmitter signal ground v ee tx: directly connect these pins to the transmitter signal ground plane. pin 8 transmitter disable t dis : optional feature, connect this pin to +3.3 v ttl logic high 1 to disable module. to enable module connect to ttl logic low 0. pin 9 transmitter data in td+: no internal terminations are provided. see recommend - ed circuit schematic. pin 10 transmitter data in bar td-: no internal terminations are provided. see recommend - ed circuit schematic. mounting studs/solder posts the two mounting studs are provided for transceiv - er mechanical attachment to the circuit board. it is recommended that the holes in the circuit board be connected to chassis ground. connection diagram figure 5. pin out diagram (top view) transmitter data in ba r transmitter data in transmitter disabl e transmitter signal ground transmitter power suppl y rx tx o o o o o 1 2 3 4 5 o o o o o 10 9 8 7 6 receiver signal ground receiver power suppl y signal detect receiver data out ba r receiver data ou t to p view mounting studs/ solder posts
7 application information the applications engineering group at avago tech - nologies is available to assist you with technical under - standing and design trade-ofs associated with these transceivers. you can contact them through your avago technologies sales representative. the following information is provided to answer some of the most common questions about the use of the parts. optical power budget and link penalties the worst-case optical power budget (opb) in db for a fber-optic link is determined by the diference between the minimum transmitter output optical power (dbm avg) and the lowest receiver sensitivity (dbm avg). this opb provides the necessary optical signal range to establish a working fber-optic link. the opb is allocated for the fber-optic cable length and the corresponding link penalties. for proper link performance, all penalties that afect the link performance must be accounted for within the link optical power budget. o v ee rx o v cc rx o sd o rd - o rd + z = 50 ? z = 50 ? z = 50 ? z = 50 ? sd v cc (+3.3 v) v cc (+3.3 v) rd + rd - z = 50 ? 1 td- o td+ o t di s o v ee tx o v cc tx o 1 h c2 1 h c1 c3 10 f t x r x 130 ? 130 ? 130 ? 130 ? terminate at transceiver inputs 100 ? t dis (lvttl ) 2 3 4 5 10 9 8 7 6 td - td + lvpecl v cc (+3.3 v) 100 ? c4 * 10 f 82 ? c5 * 10 f lvpecl 130 ? v cc (+3.3 v) terminate at device inputs phy device note: c1 = c2 = c3 = 10 nf or 100 nf * c4 and c5 are optional bypass capacitors for additional low frequency noise filtering. figure 6a. recommended dc coupled interface circuit electrical and mechanical interface recommended circuit figures 6a and 6b show recommended dc and ac coupled circuits for deploying the avago technologies transceivers in +3.3 v systems. data line interconnections avago technologies afct-5961tlz/tgz/atlz/atgz/ nlz/ngz fber-optic transceivers are designed to couple to +3.3 v pecl signals. the transmitter driver circuit regulates the output optical power. the regulated light output will maintain a constant output optical power provided the data pattern is reasonably balanced in duty cycle. if the data duty cycle has long, continu - ous state times (low or high data duty cycle), then the output optical power will gradually change its average output optical power level to its preset value.
8 figure 6b. recommended ac coupled interface circuit the afct-5961tlz/tgz/atlz/atgz/nlz/ngz have a transmit disable function which is a single-ended +3.3 v ttl input which is dc-coupled to pin 8. as for the receiver section, it is internally ac-coupled between the preamplifer and the postamplifer stages. the actual data and data-bar outputs of the postampli - fer are dc-coupled to their respective output pins (pins 4, 5). the two data outputs of the receiver should be ter - minated with identical load circuits. signal detect is a single-ended, +3.3 v pecl compatible output signal that is dc-coupled to pin 3 of the module. signal detect should not be ac-coupled externally to the follow-on circuits because of its infrequent state changes. power supply filtering and ground planes it is important to exercise care in circuit board layout to achieve optimum performance from these transceiv - ers. figures 6a and 6b show the power supply circuit which complies with the small form factor multisource agreement. it is further recommended that a continuous ground plane be provided in the circuit board directly under the transceiver to provide a low inductance ground for signal return current. this recommendation is in keeping with good high frequency board layout practices. package footprint and front panel considerations the avago technologies transceivers comply with the circuit board common transceiver footprint hole pattern defned in the current multisource agreement which defned the 2 x 5 package style. this drawing is reproduced in figure 7 with the addition of ansi y14.5m compliant dimensioning to be used as a guide in the mechanical layout of your circuit board. figure 8 shows the front panel dimensions associated with such a layout. eye safety circuit for an optical transmitter device to be eye-safe in the event of a single fault failure, the transmitter must either maintain eye-safe operation or be disabled. the afct-5961tlz/tgz/atlz/atgz/nlz/ngz is intrinsi - cally eye safe and does not require shut down circuitry. o v ee r x o v cc r x o sd o rd- o rd+ z = 50 w z = 50 w z = 50 w z = 50 w sd lvpecl v cc (+3.3 v) v cc (+3.3 v) rd+ rd- v cc (+3.3 v) 130 w z = 50 w 1 td- o td+ o t dis o v ee t x o v cc t x o 1 h c2 1 h c1 c3 10 f t x r x 130 w 130 w 130 w 130 w 100 nf 100 nf 100 nf 100 nf 82 w 130 w v cc (+3.3 v) 130 w 82 w t dis (lvttl) 2 3 4 5 10 9 8 7 6 td- td+ note: c1 = c2 = c3 = 10 nf or 100 nf note a: circuit assumes open emitter output note b: when internal bias is provided replace split resistors with 100 w termination * c4 and c5 are optional bypass capacitors for additional low frequency noise filtering. note a note b v cc (+3.3 v) 100 nf 100 nf 82 w 130 w v cc (+3.3 v) 82 w 130 w c4 * 10 f 82 w 100 nf c5 * 10 f
9 signal detect the signal detect circuit provides a de-asserted output signal when the optical link is broken (or when the remote transmitter is off). the signal detect threshold is set to transition from a high to low state between the minimum receiver input optical power and -45 dbm avg. input optical power indicating a defnite optical fault (e.g. unplugged connector for the receiver or transmitter, broken fber, or failed far-end transmitter or data source). the signal detect does not detect receiver data error or error-rate. data errors can be determined by signal processing ofered by upstream phy ics. electromagnetic interference (emi) one of a circuit board designers foremost concerns is the control of electromagnetic emissions from electron - ic equipment. success in controlling generated elec - tromagnetic interference (emi) enables the designer to pass a governmental agencys emi regulatory standard and more importantly, it reduces the possibility of in - terference to neighboring equipment. avago technolo - gies has designed the afct-5961tlz/tgz/atlz/atgz/ nlz/ngz to provide excellent emi performance. the emi performance of a chassis is dependent on physical design and features which help improve emi suppres - sion. avago technologies encourages using standard rf suppression practices and avoiding poorly emi-sealed enclosures. avago technologies oc-3 lc transceivers (afct- 5961tlz/tgz/atlz/atgz/nlz/ngz) have nose shields which provide a convenient chassis connection to the nose of the transceiver. this nose shield improves system emi performance by efectively closing of the lc aperture. the recommended transceiver position, pcb layout and panel opening for these devices are the same, making them mechanically drop-in compatible. figure 8 shows the recommended positioning of the transceivers with respect to the pcb and faceplate. recommended solder and wash process the afct-5961tlz/tgz/atlz/atgz/nlz/ngz are com - patible with industry-standard wave solder processes. 7.59 (0.299) 3 (0.118) 3 (0.118) 6 (0.236) 4.57 (0.18) 4 x 1.78 (0.07) 10 x ? 0.81 0.1 (0.032 0.004 ) 3.08 (0.121) 2 x ? 2.29 (0.09) 9.59 (0.378 ) 2 (0.079 ) 13.34 (0.525) 7.11 (0.28) 4 x ? 1.4 0.1 (0.055 0.004 ) 2 x ? 1.4 0.1 (0.055 0.004) 2 x ? 1.4 0.1 (0.055 0.004) 10.16 (0.4 ) 3.56 (0.14) 2 x ? 2.29 max. (0.09) 17. 8 (0.700) 2 (0.079) *4 *5 dimensions in millimeters (inches) figure 7. recommended board layout hole pattern notes: 1. this figure describes msa recom - mended circuit board layout for the sff transceiver. 2. the hatched areas are keep-out areas reserved for housing standoffs. no metal traces or ground connection in keep-out areas. 3. 2 x 5 transceiver module requires 16 pcb holes (10 i/o pins, 2 solder posts and 4 optional package grounding tabs). package grounding tabs should be connected to signal ground. *4. the mounting studs should be soldered to chassis ground for mechanical integrity and to ensure footprint compatibility with other sff transceivers. *5. holes for optional housing leads must be tied to signal ground.
10 process plug this transceiver is supplied with a process plug for protection of the optical port within the lc connector receptacle. this process plug prevents contamina - tion during wave solder and aqueous rinse as well as during handling, shipping and storage. it is made of a high-temperature, molded sealing material that can withstand +85 c, and a rinse pressure of 110 lbs per square inch. the process plug should only be used once. after removing it from the transceiver, it must not be used again as a process plug; however, if it has not been con - taminated it can be reused as a dust cover. recommended solder fuxes solder fuxes used with the afct-5961tlz/tgz/atlz/ atgz/nlz/ngz should be water-soluble, organic fuxes. recommended solder fuxes include lonco 3355-11 from london chemical west, inc. of burbank, ca, and 100 flux from alpha-metals of jersey city, nj. figure 8. recommended panel mounting 15.24 (0.6 ) dimensions in millimeters (inches) 1. figure describes the recommended front panel opening for a lc or sg sff transceiver . 2. sff transceiver placed at 15.24 mm (0.6) min. spacing. 14.22 0. 1 (0.56 0.004) 10.16 0. 1 (0.4 0.004) detail a top of pc b 1 (0.039) a solder post s 15.75 max. 15.0 min. (0.62 max. 0.59 min.) section b - b 15.24 (0.6 ) b b recommended cleaning/degreasing chemicals alcohols: methyl, isopropyl, isobutyl. aliphatics: hexane, heptane other: naphtha. do not use partially halogenated hydrocarbons such as 1,1.1 trichloroethane, ketones such as mek, acetone, chloroform, ethyl acetate, methylene dichloride, phenol, methylene chloride, or n-methylpyrolldone. also, avago technologies does not recommend the use of cleaners that use halogenated hydrocarbons because of their potential environmental harm. lc sff cleaning recommendations in the event of contamination of the optical ports, the recommended cleaning process is the use of forced nitrogen. if contamination is thought to have remained, the optical ports can be cleaned using a ntt interna - tional cletop stick type (diam. 1.25 mm) and hfe7100 cleaning fuid.
11 table 1: regulatory compliance - targeted specifcation feature test method performance electrostatic discharge (esd) to the electrical pins mil-std-883 method 3015 class 1 (>500 v). electrostatic discharge (esd) to the lc receptacle variation of iec 61000-4-2 tested to 8 kv contact discharge. electromagnetic interference (emi) fcc class b margins are dependent on customer board and chassis designs. immunity variation of iec 61000-4-3 typically show no measurable efect from a 10 v/m feld swept from 27 to 1000 mhz applied to the transceiver without a chassis enclosure. laser eye safety and equipment type testing fda cdrh 21-cfr 1040 class 1 iec 60825-1 amendment 2 2001-01 accession number: 9521220-124 license number: 933/21203530/03 component recognition underwriters laboratories and canadian standards association joint component recognition for infor - mation technology equipment including electrical business equipment. ul file number: e173874 regulatory compliance the regulatory compliance for transceiver performance is shown in table 1. the overall equipment design will determine the certifcation level. the transceiver per - formance is ofered as a fgure of merit to assist the designer in considering their use in equipment designs. electrostatic discharge (esd) there are two design cases in which immunity to esd damage is important. the frst case is during handling of the transceiver prior to mounting it on the circuit board. it is important to use normal esd handling precautions for esd sensitive devices. these pr e cautions include using grounded wrist straps, work benches, and foor mats in esd con - trolled areas. the second case to consider is static discharges to the exterior of the equipment chassis containing the trans - ceiver parts. to the extent that the lc connector recep - tacle is exposed to the outside of the equipment chassis it may be subject to whatever system-level esd test criteria that the equipment is intended to meet. electromagnetic interference (emi) most equipment designs utilizing these high-speed transceivers from avago technologies will be required to meet fcc regulations in the united states, cenelec en55022 (cispr 22) in europe and vcci in japan. refer to emi section (page 9) for more details. immunity transceivers will be subject to radio-frequency electro - magnetic felds following the iec 61000-4-3 test method. eye safety these laser-based transceivers are classifed as ael class i (u.s. 21 cfr(j) and ael class 1 per en 60825-1 (+a11). they are eye safe when used within the data sheet limits per cdrh. they are also eye safe under normal operating conditions and under all reasonably foresee - able single fault conditions per en60825-1. avago tech - nologies has tested the transceiver design for compli - ance with the requirements listed below under normal operating conditions and under single fault conditions where applicable. tuv rheinland has granted certifca - tion to these transceivers for laser eye safety and use in en 60825-2 applications. their performance enables the transceivers to be used without concern for eye safety up to 3.5 v transmitter v cc .
12 caution: there are no user serviceable parts nor any mainte - nance required for the afct-5961tlz/tgz/atlz/atgz/ nlz/ngz. all adjustments are made at the factory before shipment to our customers. tampering with or modifying the performance of the parts will result in voided product warranty. it may also result in improper operation of the circuitry, and possible overstress of the laser source. device degradation or product failure may result. connection of the devices to a non-approved optical source, operating above the recommended absolute maximum conditions or operating the afct-5961tlz/ tgz/atlz/atgz/nlz/ngz in a manner inconsistent with its design and function may result in hazardous radiation exposure and may be considered an act of modifying or manufacturing a laser product. the person(s) performing such an act is required by law to recertify and reidentify the laser product under the pro - visions of u.s. 21 cfr (subchapter j).
13 absolute maximum ratings stresses in excess of the absolute maximum ratings can cause catastrophic damage to the device. limits apply to each parameter in isolation, all other parameters having values within the recommended operating conditions. it should not be assumed that limiting values of more than one parameter can be applied to the product at the same time. exposure to the absolute maximum ratings for extended periods can adversely afect device reliability. parameter symbol min. typ. max. unit reference storage temperature t s -40 +85 c supply voltage v cc -0.5 3.6 v data input voltage v i -0.5 v cc v data output current i d 50 ma relative humidity rh 85 % parameter symbol min. typ. max. unit reference ambient operating temperature afct-5961tlz/tgz afct-5961nlz/ngz AFCT-5961ATLZ/atgz t a t a t a 0 -5 -40 +70 +70 +85 c c c 1 1 1 supply voltage v cc 3.1 3.5 v 2 power supply noise rejection psnr 100 mv p-p 3 transmitter diferential input voltage v d 0.3 1.6 v data output load r dl 50 w transmit disable input voltage - low t dis 0.6 v transmit disable input voltage - high t dis 2.2 v transmit disable assert time t assert 10 s 4 transmit disable deassert time t deassert 1.0 ms 5 parameter symbol min. typ. max. unit reference wave soldering and aqueous wash t sold /t sold +260/10 c/sec. 6 recommended operating conditions process compatibility notes: 1. ambient operating temperature utilizes air fow of 2 ms -1 over the device. 2. the transceiver is class 1 eye safe up to v cc = 3.5 v. 3. tested with a sinusoidal signal in the frequency range from 10 hz to 1 mhz on the v cc supply with the recommended power supply flter in place. typically less than a 1 db change in sensitivity is experienced. 4. time delay from transmit disable assertion to laser shutdown. 5. time delay from transmit disable deassertion to laser start-up. 6. aqueous wash pressure <110 psi.
14 transmitter electrical characteristics afct-5961tlz/tgz: t a = 0 c to +70 c, v cc = 3.1 v to 3.5 v) afct-5961nlz/ngz: t a = -5 c to +70 c, v cc = 3.1 v to 3.5 v) AFCT-5961ATLZ/atgz: t a = -40 c to +85 c, v cc = 3.1 v to 3.5 v) parameter symbol min. typ. max. unit reference supply current i ccr 89 140 ma 1 power dissipation p disr 0.5 w data output voltage swing (single-ended) v oh - v ol 575 930 mv 2 data output rise time t r 2.2 ns 3 data output fall time t f 2.2 ns 3 signal detect output voltage - low v ol - v cc -1.84 -1.6 v 4 signal detect output voltage - high v oh - v cc -1.1 -0.88 v 4 signal detect assert time (off to on) as max 100 s signal detect deassert time (on to off) ans max 2.3 100 s parameter symbol min. typ. max. unit reference supply current i cct 57 140 ma power dissipation p dist 0.5 w data input voltage swing (single-ended) v ih - v il 250 930 mv transmitter diferential data input current - low i il -350 a transmitter diferential data input current - high i ih 350 a notes: 1. includes current for biasing rx data outputs. 2. these outputs are compatible with low voltage pecl inputs. 3. these are 20-80% values. 4. sd is lvpecl compatible when terminated with 50 w to v cc -2 v. receiver electrical characteristics afct-5961tlz/tgz: t a = 0 c to +70 c, v cc = 3.1 v to 3.5 v) afct-5961nlz/ngz: t a = -5 c to +70 c, v cc = 3.1 v to 3.5 v) AFCT-5961ATLZ/atgz: t a = -40 c to +85 c, v cc = 3.1 v to 3.5 v)
15 transmitter optical characteristics afct-5961tlz/tgz: t a = 0 c to +70 c, v cc = 3.1 v to 3.5 v) AFCT-5961ATLZ/atgz: t a = -40 c to +85 c, v cc = 3.1 v to 3.5 v) parameter symbol min. typ. max. unit reference output optical power 9 m smf p out -15 -8 dbm 1 center wavelength l c 1261 1360 nm spectral width - rms s 7.7 nm rms 2 optical rise time t r 2 ns 3 optical fall time t f 2 ns 3 extinction ratio e r 8.2 db output optical eye compliant with eye mask telcordia gr-253-core and itu-t g.957 parameter symbol min. typ. max. unit reference output optical power 9 m smf p out -5 0 dbm 1 center wavelength l c 1270 1360 nm spectral width - rms s 3 nm rms 2 optical rise time t r 2 ns 3 optical fall time t f 2 ns 3 extinction ratio e r 10 db output optical eye compliant with eye mask telcordia gr-253-core and itu-t g.957 parameter symbol min. typ. max. unit reference receiver sensitivity afct-5961tlz/tgz/atlz/atgz tiv afct-5961nlz/ngz p in min -38 -38 -3 1-34 dbm avg. dbm avg. 4 4 receiver overload p in max -8 0 dbm avg. 4 input operating wavelength l 1261 1580 nm signal detect - asserted p a -39.8 -34 dbm avg. signal detect - deasserted p d -45 -41.9 dbm avg. signal detect - hysteresis p h 0.5 2 4 db notes: 1. the output power is coupled into a 1 m single mode fber. minimum output optical level is at end of life. 2. the relationship between fwhm and rms values for spectral width can be derived from the assumption of a gaussian shaped spectrum which results in rms = fwhm/2.35. 3. these are unfltered 10-90% values. 4. p in represents the typical optical input sensitivity of the receiver. sensitivity (p in min ) and saturation (p in max ) levels for a 2 23 -1 prbs with 72 ones and 72 zeros inserted. over the range the receiver is guaranteed to provide output data with a bit error rate better than or equal to 1 x 10 -10 . receiver optical characteristics afct-5961tlz/tgz: t a = 0 c to +70 c, v cc = 3.1 v to 3.5 v) afct-5961nlz/ngz: t a = -5 c to +70 c, v cc = 3.1 v to 3.5 v) AFCT-5961ATLZ/atgz: t a = -40 c to +85 c, v cc = 3.1 v to 3.5 v) transmitter optical characteristics afct-5961nlz/ngz: t a = -5 c to +85 c, v cc = 3.1 v to 3.5 v)
ordering information 1300 nm fp laser (temperature range 0 c to +70 c, afct-5961tlz = 2 x 5 lc connector, ir, lvpecl sd with emi nose shield afct-5961tgz = 2 x 5 lc connector, ir, lvpecl sd without emi nose shield 1300 nm fp laser (temperature range -5 c to +70 c, afct-5961nlz = 2 x 5 lc connector. lr, lvpecl sd with emi nose shield afct-5961ngz = 2 x 5 lc connector. lr, lvpecl sd without emi nose shield 1300 nm fp laser (temperature range -40 c to +85 c, AFCT-5961ATLZ = 2 x 5 lc connector. ir, lvpecl sd with emi nose shield afct-5961atgz = 2 x 5 lc connector, ir, lvpecl sd without emi nose shield related products other single mode oc-3 transceivers in this product family are:- afct-5962tlz/tgz/atlz/atgz/nlz/ngz = 2 x 10 lc connector. lr/ir, lvpecl sd afct-5963tlz/tgz/atlz/atgz/nlz/ngz = 2 x 5 lc connector, lr/ir, +3.3 v ttl sd afct-5964tlz/tgz/atlz/atgz/nlz/ngz = 2 x 10 lc connector, lr/ir, +3.3 v ttl sd class 1 laser product: this product conforms to the applicable requirements of 21 cfr 1040 at the date of manufacture date of manufacture: avago technologies inc., no 1 yishun ave 7, singapore handling precautions 1. the afct-5961tlz/tgz/atlz/atgz/nlz/ngz can be damaged by current surges or overvoltage. power supply transient precautions should be taken. 2. normal handling precautions for electrostatic sensitive devices should be taken. 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, limited in the united states and other countries. data subject to change. copyright ? 2006 avago technologies limited. all rights reserved. obsoletes av01-0060en av02-0817en- october 31, 2007

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