Features Links with 9/125 single mode fiber (SMF) links 62.5/125 multi

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Features Links with 9/125 single mode fiber (SMF) links 62.5/125 multi

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Agilent HFCT-5981ATL Single Mode Laser Transceiver Gb/s Gigabit Ethernet iSCSI applications
Features Links with 9/125 single mode fiber (SMF) links 62.5/125 multimode fiber (MMF) Compliant Gigabit Ethernet IEEE 802.3, 2000 Edition Compliant Small Form Factor package style with receptacle Single +3.3 power supply Case operating temperature range: -10°C +85°C Manufactured ISO9002 certified facility Fully Class CDRH/IEC compliant Wave solder aqueous wash process compatible Applications Gigabit Ethernet 1000BASE-LX Gb/s proprietary links
Description HFCT-5981ATL transceiver high performance, cost effective module serial optical data communications applications operating Gb/s. This module designed single mode fiber operates nominal wavelength 1310 incorporates high performance, reliable, long wavelength optical devices proven circuit technology give long life consistent service. transmitter section incorporates 1310 Fabry Perot (FP) laser. transmitter full CDRH Class safety. receiver section uses MOVPE grown planar SEDET photo detector dark current excellent responsivity.
transceiver supplied industry standard style package with fiber connector interface footprint compatible with Multi Source Agreement (MSA).
Functional Description Receiver Section Design receiver section HFCT-5981ATL contains InGaAs/InP photo detector pre-amplifier mounted optical subassembly. This optical subassembly coupled post-amplifier/decision circuit circuit board. design optical assembly such that provides better than Optical Return Loss (ORL). post-amplifier coupled pre-amplifier illustrated Figure coupling capacitors capable passing Gigabit Ethernet test pattern Gb/s without significant distortion performance penalty. lower signal rate, code which significantly more frequency content used, sensitivity, jitter pulse distortion could degraded. Noise Immunity receiver includes internal circuit components filter power supply noise. However under some conditions power supply noise, external power supply filtering necessary (see Application Section). Signal Detect Circuit signal detect circuit works sensing peak level received signal comparing this level reference. output voltage TTL.
Figure also shows filter function which limits bandwidth pre-amp output signal. filter designed bandlimit preamp output noise thus improve receiver sensitivity. These components will reduce sensitivity receiver signal rate increased above Gb/s.
TRANSIMPEDANCE PREAMPLIFIER
FILTER AMPLIFIER
DATA PECL OUTPUT BUFFER
DATA
SIGNAL DETECT CIRCUIT
OUTPUT BUFFER
Figure Receiver Block Diagram
Functional Description Transmitter Section Design schematic diagram transmitter shown Figure HFCT-5981ATL incorporates laser been designed compliant with safety requirements under single fault condition CDRH under normal operating conditions. optical output controlled custom that detects laser output monitor photodiode. This provides both current drive laser ensure correct modulation, diagram extinction ratio over temperature, supply voltage operating life.
LASER
PHOTODIODE (rear facet monitor)
DATA DATA PECL INPUT
LASER MODULATOR
LASER BIAS DRIVER
LASER BIAS CONTROL
Figure Simplified Transmitter Schematic
Package overall package concept device consists following basic elements; optical subassemblies, electrical subassemblies housing illustrated block diagram Figure package outline drawing shown Figures details this package outline compliant with multisource definition DIP. electrical subassemblies consist high volume multilayer printed circuit boards which various surface-mounted passive circuit elements attached.
receiver electrical subassembly includes internal shield electrical optical subassembly ensure high immunity external fields. optical subassemblies each attached their respective transmit receive electrical subassemblies. These units then placed within outer housing transceiver. outer housing molded with nonconductive plastic order provide mechanical strength. housing then encased with metal protective shield. case signal ground recommend soldering four ground tabs host card signal ground.
Each electrical subassembly carries signal pins that exit from bottom transceiver. solder posts fastened into molding device. This design provides mechanical strength required withstand additional stresses transceiver resulting from insertion force fiber cable mating. Although solder posts connected electrically transceiver, recommended that they connected chassis ground.
SUPPLY
DATA QUANTIZER DATA SIGNAL DETECT GROUND DATA DATA DISABLE LASER BIAS MONITORING LASER DRIVER CONTROL CIRCUIT LASER DIODE OUTPUT POWER MONITORING GROUND RECEPTACLE PHOTODIODE PREAMPLIFIER SUBASSEMBLY
LASER OPTICAL SUBASSEMBLY
SUPPLY
CASE
NOSE CLIP PROVIDES CONNECTION CHASSIS GROUND IMPROVED PERFORMANCE
Figure Block Diagram
15.0 (0.591 0.008)
13.59 0.535 -0.008
VIEW
13.59 (0.535)
6.25 (0.246)
48.2 (1.898)
10.8 (0.425 0.008)(0.378 ±0.008) 4.06 (0.16) (0.039)
10.16 (0.4)
1.07 (0.042) 19.5 ±0.3 (0.768 ±0.012)
(0.386) 3.81 (0.15) 0.25 (0.01) (0.02) 1.78 (0.07)
(0.039) BACK VIEW
FRONT VIEW
SIDE VIEW
0.25 (PIN THICKNESS) (0.01) NOTE: PINS CHAMFERED
BOTTOM VIEW
TCASE REFERENCE POINT
DIMENSIONS MILLIMETERS (INCHES) DIMENSIONS SHOWN NOMINAL. DIMENSIONS MEET MAXIMUM PACKAGE OUTLINE DRAWING MSA.
Figure HFCT-5981ATL Package Outline Drawing
Connection Diagram
Mounting Studs/ Solder Posts
Package Grounding Tabs
View
RECEIVER SIGNAL GROUND RECEIVER POWER SUPPLY SIGNAL DETECT RECEIVER DATA RECEIVER DATA
TRANSMITTER DATA TRANSMITTER DATA TRANSMITTER DISABLE TRANSMITTER SIGNAL GROUND TRANSMITTER POWER SUPPLY
Figure Diagram (Top View)
Descriptions: Receiver Signal Ground Directly connect this receiver ground plane. Receiver Power Supply Provide +3.3 recommended receiver power supply filter circuit. Locate power supply filter circuit close possible pin. Note: filter circuit should cause drop below minimum specification. Signal Detect Normal optical input levels receiver result logic output. optical input levels receiver result logic output. This Signal Detect output used drive LVTTL input upstream circuit, such Signal Detect input Loss Signal-bar. Receiver Data RD-: Output internally biased coupled. Receiver Data RD+: Output internally biased coupled. Transmitter Power Supply Provide +3.3 recommended transmitter power supply filter circuit. Locate power supply filter circuit close possible pin. Transmitter Signal Ground Directly connect this transmitter signal ground plane. Transmitter Disable TDIS: Optional feature, connect this +3.3 logic high disable module. enable module connect logic "0". Transmitter Data TD+: Input internally terminated coupled. Transmitter Data TD-: Input internally terminated coupled. Mounting Studs/Solder Posts mounting studs provided transceiver mechanical attachment circuit board. recommended that holes circuit board connected chassis ground. Package Grounding Tabs Connect four package grounding tabs signal ground.
Application Information Applications Engineering Group Agilent available assist with technical understanding design tradeoffs associated with these transceivers. contact them through your Agilent sales representative. following information provided answer some most common questions about parts. Optical Power Budget Link Penalties worst-case Optical Power Budget (OPB) fiber optic link determined difference between minimum transmitter output optical power (dBm avg) lowest receiver sensitivity (dBm avg). This provides necessary optical signal range establish working fiber optic
TDIS (LVTTL)
link. allocated fiber optic cable length corresponding link penalties. proper link performance, penalties that affect link performance must accounted within link optical power budget. Gigabit Ethernet IEEE 802.3 standard identifies, modeled, contributions these penalties establish link length requirements 62.5/125 50/125 multimode usage. addition, single mode fiber with standard 1300 Fabry-Perot lasers have been modeled specified. Refer IEEE 802.3 standard supplemental documents that develop model, empirical results specifications.
Refer 38.11.4 specification offset-launch modeconditioning patch cord required operation HFCT-5981ATL. 10km Link Support well complying with 1000Base-LX standard, HFCT-5981ATL specification provides additional margin allowing link single mode fiber. This accomplished limiting spectral width center wavelength range transmitter while increasing output optical power improving sensitivity. other 1000Base-LX cable plant recommendations should followed.
(+3.3
TDNOTE
TDIS
(+3.3
(+3.3
NOTE
LVTTL
TD+, INPUTS INTERNALLY TERMINATED COUPLED. RD+, OUTPUTS INTERNALLY BIASED COUPLED. Note CIRCUIT ASSUMES OPEN EMITTER OUTPUT. Note CIRCUIT ASSUMES HIGH IMPENDANCE INTERNAL BIAS
Note:
Figure Recommended Interface Circuit
Electrical Mechanical Interface Recommended Circuit Figure shows recommended interface deploying Agilent transceivers +3.3 system. Data Line Interconnections Agilent's HFCT-5981ATL fiber optic transceivers designed couple +3.3 PECL signals. transmitter driver circuit regulates output optical power. regulated light output will maintain constant output optical power provided data pattern balanced duty cycle. data duty cycle long, continuous state times (low high data duty cycle), then output optical power will gradually change average output optical power level preset value.
HFCT-5981ATL transmit disable function which single-ended +3.3 input which dc-coupled receiver section internally ac-coupled between preamplifier post-amplifier stages. Data Data-bar outputs post-amplifier internally biased ac-coupled their respective output pins (Pins Signal Detect single-ended, +3.3 compatible output signal that dc-coupled module. Signal Detect should ac-coupled externally follow-on circuits because infrequent state changes.
Caution should taken account proper interconnection between supporting Physical Layer integrated circuits these transceivers. Figure illustrates recommended interface circuit interconnecting +3.3 PECL fiber optic transceiver.
2.29 MAX. ±0.1 (0.09) (0.055 ±0.004)
17.8 (0.700) ±0.1 7.11 (0.055 ±0.004) (0.28)
3.56 (0.14)
±0.1 (0.055 ±0.004) 13.34 (0.525) 10.16 (0.4)
7.59 (0.299)
9.59 (0.378)
(0.079)
(0.118)
(0.118) (0.236) 4.57 (0.18)
1.78 (0.07)
2.29 (0.079) (0.09) 0.81 ±0.1 (0.032 ±0.004)
3.08 (0.121)
DIMENSIONS MILLIMETERS (INCHES) NOTES: THIS FIGURE DESCRIBES RECOMMENDED CIRCUIT BOARD LAYOUT TRANSCEIVER. HATCHED AREAS KEEP-OUT AREAS RESERVED HOUSING STANDOFFS. METAL TRACES GROUND CONNECTION KEEP-OUT AREAS. TRANSCEIVER MODULE REQUIRES HOLES PINS, SOLDER POSTS PACKAGE GROUNDING TABS). PACKAGE GROUNDING TABS SHOULD CONNECTED SIGNAL GROUND. MOUNTING STUDS SHOULD SOLDERED CHASSIS GROUND MECHANICAL INTEGRITY ENSURE FOOTPRINT COMPATIBILITY WITH OTHER TRANSCEIVERS. HOLES HOUSING LEADS MUST TIED SIGNAL GROUND.
Figure Recommended Board Layout Hole Pattern
Power Supply Filtering Ground Planes important exercise care circuit board layout achieve optimum performance from these transceivers. Figure shows power supply circuit which complies with Small Form Factor Multisource Agreement. further recommended that continuous ground plane provided circuit board directly under transceiver provide inductance ground signal return current. This recommendation keeping with good high frequency board layout practices. Package footprint front panel considerations Agilent transceivers comply with circuit board "Common Transceiver Footprint" hole pattern defined current multisource agreement which defined package style. This drawing reproduced Figure with addition ANSI Y14.5M compliant dimensioning used guide mechanical layout your circuit board. Figure shows front panel dimensions associated with such layout. Safety Circuit optical transmitter device eye-safe event single fault failure, transmit-ter must either maintain eye-safe operation disabled. HFCT-5981ATL intrinsically safe does require shut down circuitry. Signal Detect Signal Detect circuit provides de-asserted output signal when optical link broken when remote transmitter OFF). Signal Detect threshold transition from high
10.16 (0.4 0.004) 15.24 (0.6)
DETAIL
000000000 000000000 000000000 000000000
15.24 (0.6)
(0.039)
0000000000000000000000000000 0000000000000000000000000000
14.22 ±0.1 (0.56 ±0.004)
SOLDER POSTS
0000000000 000000000000000000000000000 0000000000 000000000000000000000000000
15.75 MAX. 15.0 MIN. (0.62 MAX. 0.59 MIN.) SECTION
DIMENSIONS MILLIMETERS (INCHES) FIGURE DESCRIBES RECOMMENDED FRONT PANEL OPENING TRANSCEIVER. TRANSCEIVER PLACED 15.24 (0.6) MIN. SPACING.
Figure Recommended Panel Mounting
state between minimum receiver input optical power avg. input optical power indicating definite optical fault (e.g. unplugged connector receiver transmitter, broken fiber, failed far-end transmitter data source). Signal Detect does detect receiver data error error-rate. Data errors determined signal processing offered upstream ICs. Electromagnetic Interference (EMI) circuit board designer's foremost concerns control electromagnetic emissions from electronic equipment. Success controlling generated Electromagnetic Interference (EMI) enables designer pass governmental agency's regulatory standard more importantly, reduces possibility interference neighboring equipment. Agilent designed HFCT-5981ATL provide good performance. performance chassis
dependent physical design features which help improve suppression. Agilent encourages using standard suppression practices avoiding poorly EMI-sealed enclosures. Agilent's transceivers (HFCT5981ATL) have nose shields which provide convenient chassis connection nose transceiver. This nose shield improves system performance effectively closing aperture. Localized shielding also improved tying four metal housing package grounding tabs signal ground PCB. Though obvious inspection, nose shield metal housing electrically separated customers wish directly chassis signal grounds together. Figure shows recommended positioning transceivers with respect faceplate.
Package Handling Instructions Flammability HFCT-5981ATL transceiver housing consists high strength, heat resistant flame retardant plastic metal packaging. Recommended Solder Wash Process HFCT-5981ATL compatible with industrystandard wave solder processes. Process plug This transceiver supplied with process plug protection optical port within connector receptacle. This process plug prevents contamination during wave solder aqueous rinse well during handling, shipping storage. made hightemperature, molded sealing material that withstand +85°C rinse pressure square inch.
Recommended Solder fluxes Solder fluxes used with HFCT-5981ATL should water-soluble, organic fluxes. Recommended solder fluxes include Lonco 3355-11 from London Chemical West, Inc. Burbank, Flux from Alpha-Metals Jersey City,
Recommended Cleaning/Degreasing Chemicals Alcohols: methyl, isopropyl, isobutyl. Aliphatics: hexane, heptane Other: naphtha. partially halogenated hydrocarbons such 1,1.1 trichloroethane, ketones such MEK, acetone, chloroform, ethyl acetate, methylene dichloride, phenol, methylene chloride, N-methylpyrolldone. Also, Agilent does recommend cleaners that halogenated hydrocarbons because their potential environmental harm. Cleaning Recommendations event contamination optical ports, recommended cleaning process forced nitrogen. contamination thought have remained, optical ports cleaned using international Cletop stick type (diam. 1.25mm) HFE7100 cleaning fluid.
Regulatory Compliance Regulatory Compliance transceiver performance shown Table overall equipment design will determine certification level. transceiver performance offered figure merit assist designer considering their equipment designs. Electrostatic Discharge (ESD) device been tested comply with MIL-STD-883 (Method 3015). important normal handling precautions sensitive devices. These precautions include using grounded wrist straps, work benches, floor mats controlled areas.
Electromagnetic Interference (EMI) Most equipment designs utilizing these high-speed transceivers from Agilent will required meet regulations United States, CENELEC EN55022 (CISPR Europe VCCI Japan. Refer section (page more details. Immunity Transceivers will subject radio-frequency electromagnetic fields following 61000-4-3 test method.
Table Regulatory Compliance Targeted Specification
Feature Electrostatic Discharge (ESD) Electrical Pins Electrostatic Discharge (ESD) Receptacle Electromagnetic Interference (EMI) Test Method MIL-STD-883 Method 3015 Variation 61000-4-2 Performance Class kV).
Safety These laser-based transceivers classified Class (U.S. CFR(J) Class IEC60825-1 (+A11). They safe when used within data sheet limits CDRH. They also safe under normal operating conditions under reasonably foreseeable single fault conditions IEC60825-1. Agilent tested transceiver design compliance with requirements listed below. These tests were conducted under normal operating conditions single fault conditions where applicable. Rheinland granted certification these transceivers laser safety IEC60825-2 applications. Their performance enables transceivers used without concern safety transmitter VCC.
Tested contact discharge.
Immunity
Class CENELEC EN55022 Class (CISPR 22A) VCCI Class Variation 61000-4-3
Margins dependent customer board chassis designs.
Laser Safety Equipment Type Testing
CDRH 21-CFR 1040 Class 60825-1 Amendment 2001 Underwriters Laboratories Canadian Standards Association Joint Component Recognition Information Technology Equipment Including Electrical Business Equipment.
Typically show measurable effect from field swept from 1000 applied transceiver without chassis enclosure. Accession Number: HFCT-5981ATL 9521220-63
License Number:
HFCT-5981ATL 933/510219/01
Component Recognition
File Number: E173874
CAUTION: There user serviceable parts maintenance required HFCT-5981ATL. adjustments made factory before shipment customers. Tampering with modifying performance parts will result voided product warranty. also result improper operation circuitry, possible overstress laser source. Device degradation product failure result. Connection devices non-approved optical source, operating above recommended absolute maximum conditions operating HFCT-5981ATL manner inconsistent with design function result hazardous radiation exposure considered modifying manufacturing laser product. person(s) performing such required re-certify re-identify laser product under provisions U.S. (Subchapter
Absolute Maximum Ratings
Stresses excess absolute maximum ratings cause catastrophic damage device. Limits apply each parameter isolation, other parameters having values within recommended operating conditions. should assumed that limiting values more than parameter applied product same time. Exposure absolute maximum ratings extended periods adversely affect device reliability.
Parameter Storage Temperature (non-operating) Relative Humidity Supply Voltage Input Voltage
Symbol
Unit
Notes
-0.5 -0.5
Recommended Operating Conditions
Parameter Case Operating Temperature Supply Voltage Power Supply Noise Rejection Data Output Load Transmit Disable Input Voltage Transmit Disable Input Voltage High Transmit Disable Assert Time Transmit Disable Deassert Time
Process Compatibility
Parameter Wave Soldering Aqueous Wash
Symbol PSNR TDIS TDIS TASSERT TDEASSERT
Unit mVP-P
Notes
Symbol TSOLD/tSOLD
+260/10
Unit °C/sec.
Notes
Notes: transceiver class safe Tested with sinusoidal signal frequency range from supply with recommended power supply filter place. Typically less than change sensitivity experienced. Time delay from Transmit Disable Assertion laser shutdown. Time delay from Transmit Disable Deassertion laser startup. Aqueous wash pressure <110 psi.
Transmitter Electrical Characteristics -10°C +85°C,
Parameter Supply Current Transmitter Power Dissipation Data Input Voltage Swing (single-ended) Transmitter Differential Data Input Current Transmitter Differential Data Input Current High Symbol ICCT PDIST Unit Notes
-350
Receiver Electrical Characteristics -10°C +85°C,
Parameter Supply Current Receiver Power Dissipation Data Output Voltage Swing (single-ended) Data Output Rise Time Data Output Fall Time Signal Detect Output Voltage Signal Detect Output Voltage High Signal Detect Assert Time (OFF Signal Detect Deassert Time OFF) Symbol ICCRX PDISS ASMAX ANSMAX 0.40 0.40 Unit Notes
Notes: These outputs compatible with PECL inputs. These 20-80% values. LVTTL compatible.
Transmitter Optical Characteristics -10°C +85°C,
Parameter Output Optical Power 62.5 Optical Extinction Ratio Center Wavelength Spectral Width Optical Rise/Fall Time Random Intensity Noise Contributed Total Jitter added Coupled Power Ratio 62.5 Coupled Power Ratio
Receiver Optical Characteristics -10°C +85°C,
Parameter Receiver Overload Receiver Sensitivity Stressed Receiver Sensitivity Stressed Receiver Opening Receiver Electrical Upper Cutoff Frequency Operating Center Wavelength Return Loss Signal Detect Asserted Signal Detect Deasserted Signal Detect Hysteresis
Symbol POUT POUT POUT TRISE/FALL RIN12
-9.5 -11.5 -11.5 1278
1343 0.26 -120 28<CPR<40 12<CPR<20
Unit dB/Hz
Notes
Symbol PINMAX PINMIN
-14.4
1500 1270 1570
Unit
Reference
Notes: maximum Optical Output Power complies with IEEE 802.3 specification, class laser safe. These unfiltered 20-80% values. diagram (Figure specifies laser transmitter pulse response characteristics. characteristics include rise time, fall time, pulse undershoot, ringing, which controlled prevent excessive degradation receiver sensitivity. referenced Gigabit Ethernet diagram using required filter specifies these parameters. output optical waveform 1.25 Gb/s complies with requirements mask discussed section 38.6.5 Fig. 38-2 IEEE 802.3. refers compliance point specified 802.3, section 38.2.1. receiver sensitivity measured using worst case extinction ratio penalty while sampling center eye. 27-1 PRBS receiver guaranteed provide output data with better than equal BER. stressed receiver sensitivity measured using conformance test signal defined 802.3, section 38.6.11. conformance test signal conditioned applying deterministic jitter intersymbol interference. stressed receiver jitter measured 1.25 Gb/s using conformance test signal defined 802.3, section 38.6.11 average optical power greater than specified stressed receiver sensitivity. order meet link power budget transmitter trade spectral width center wavelength shown Figure
NORMALIZED AMPLITUDE
NORMALIZED TIME (UNIT INTERVAL) 0.625 0.22 0.375 0.78
1.30 1.00 0.80 0.50
37.5 62.5 NORMALIZED TIME UNIT INTERVAL)
0.20 -0.20
Figure Gigabit Ethernet Transmitter mask diagram
spectral width (nm) 1270 Minimum Launched Power -9.5
1280
1290
1300
1310
1320
1330
1340
1350
NORMALIZED AMPLITUDE
1360
Wavelength (nm)
Figure Maximum spectral width trade curve derived from Gigabit Ethernet link model.
Ordering Information 1310 Laser (Case operating temperature range -10°C +85°C) HFCT-5981ATL
Class Laser Product: This product conforms
applicable requirements 1040 date manufacture Date Manufacture: Agilent Technologies Inc., Yishun Singapore Handling Precautions HFCT-5981ATL damaged current surges overvoltage. Power supply transient precautions should taken. Normal handling precautions electrostatic sensitive devices should taken.
www.agilent.com/ semiconductors
product information complete list distributors, please site. technical assistance call: Americas/Canada: (800) 235-0312 (408) 654-8675 Europe: 6441 92460 China: 10800 0017 Hong Kong: (+65) 6271 2451 India, Australia, Zealand: (+65) 6271 2394 Japan: (+81 0120-61-1280(Domestic Only) Korea: (+65) 6271 2194 Malaysia, Singapore: (+65) 6271 2054 Taiwan: (+65) 6271 2654 Data subject change. Copyright 2002 Agilent Technologies, Inc. Obsoletes: 5988-7983EN October 2002 5988-8136EN

Features Links with 9/125 single mode fiber (SMF) links 62.5/125 multi

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