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Fibre Channel 133 MBd and 266 MBd Transceivers in Low Cost 1x9 Package Style Technical Data
HFBR-5301 133 MBd HFBR-5302 266 MBd
Features
* Full Compliance with ANSI X3T11 Fibre Channel Physical and Signaling Interface * Multisourced 1x9 Package Style with Duplex SC Connector * Wave Solder and Aqueous Wash Process Compatibility * Compatible with Various Manufacturers FC-0 and FC-1 Circuits
The products are produced in the new industry standard 1x9 SIP package style with a duplex SC connector interface as defined in the Fiber Channel ANSI FC-PH standard document. The HFBR-5301 is a 1300 nm transceiver specified for use in 133 MBd, 12.5 MB/s, 12-M6-LE-I Fibre Channel interfaces to either 62.5/125 m or 50/125 m multimode fiber-optic cables. The HFBR-5302 is a 1300 nm transceiver specified for use in 266 MBd, 25 MB/s, 25-M6-LE-I Fibre Channel interfaces to either 62.5/125 m or 50/125 m multimode fiber-optic cables.
Applications
* Fibre Channel 12.5 MB/s 12-M6-LE-I Interfaces for 1300 nm LED Links to 1500 m * Fibre Channel 25 MB/s 25-M6-LE-I Interfaces for 1300 nm LED Links to 1500 m
These are packaged in the optical subassembly portion of the receiver. These PIN/preamplifier combinations are coupled to a custom quantizer IC which provides the final pulse shaping for the logic output and the Signal Detect function. The Data output is differential. The Signal Detect output is single-ended. Both data and signal detect outputs are PECL compatible, ECL referenced (shifted) to a +5 volt power supply.
Transmitter Sections
The transmitter sections of the HFBR-5301 and HFBR-5302 utilize 1300 nm InGaAsP LEDs. These LEDs are packaged in the optical subassembly portion of the transmitter section. They are driven by a custom silicon IC which converts PECL logic signals, into an analog LED drive current.
Description
The HFBR-5301 and HFBR-5302 Fibre Channel Transceivers from Hewlett-Packard provide the system designer with products to implement Fibre Channel designs for use in multimode fiber (MMF) applications. These include the 12.5 MB/sec 12-M6-LE-I interface and the 25 MB/sec 25-M6-LE-I interface for 1300 nm LED links.
Package
The overall package concept for the HP Fibre Channel transceivers consists of three basic elements; the two optical subassemblies, an electrical subassembly and the housing with integral duplex SC connector interface. This is illustrated in the block diagram in Figure 1. 215
Receiver Sections
The receiver sections of the HFBR-5301 and HFBR-5302 utilize InGaAs PIN photo diodes coupled to a custom silicon transimpedance preamplifier IC.
5963-5608E (3/95)
ELECTRICAL SUBASSEMBLY DATA OUT SIGNAL DETECT OUT
DUPLEX SC RECEPTACLE PIN
QUANTIZER IC PREAMP IC OPTICAL SUBASSEMBLIES
The electrical subassembly consists of a high volume multilayer printed circuit board to which the IC chips and various surfacemount passive circuit elements are attached. The package includes internal shields for the electrical and optical subassemblies to insure high immunity to external EMI fields and low EMI emissions. The outer housing, including the duplex SC connector, is molded of filled non-conductive plastic to provide mechanical strength and electrical isolation. The solder posts are isolated from the circuit design of the transceiver, while they can be connected to a ground plane on the circuit board, doing so will have no impact on circuit performance. The transceiver is attached to a printed circuit board with the nine signal pins and the two solder posts which exit the bottom of the housing. The two solder posts provide the primary mechanical strength to withstand the loads imposed on the transceiver by mating with the duplex SC connectored fiber cables.
LED DATA IN DRIVER IC
TOP VIEW
Figure 1. Block Diagram.
The package outline drawing and pin out are shown in Figures 2 and 3. The details of this package outline and pin out are compliant with the multisource definition of the 1x9 single in-line package (SIP). The low profile of the Hewlett-Packard transceiver design complies with the
39.12 MAX. (1.540)
maximum height allowed for the duplex SC connector over the entire length of the package. The optical subassemblies utilize a high volume assembly process together with low cost lens elements which result in a cost effective building block.
12.70 (0.500)
25.40 MAX. (1.000)
AREA RESERVED FOR PROCESS PLUG
12.70 (0.500)
DATE CODE (YYWW) H SINGAPORE
HFBR-5XXX
3.30 0.38 (0.130 0.015)
+ 0.08 - 0.05 + 0.003 ) (0.030 - 0.002 0.75
10.35 MAX. (0.407)
Application Information
2.92 (0.115) o 0.46 (9x) (0.018) NOTE 1 18.52 (0.729) 4.14 (0.163) + 0.25 - 0.05 + 0.010 ) (0.050 - 0.002 NOTE 1 1.27
23.55 (0.927)
20.32 [8x(2.54/.100)] (0.800)
16.70 (0.657)
17.32 20.32 23.32 (0.682) (0.800) (0.918)
0.87 (0.034)
23.24 (0.915)
15.88 (0.625)
The Applications Engineering group in the Hewlett-Packard Optical Communication Division is available to assist with the technical understanding and design trade-offs associated with these transceivers. You can contact them through your local Hewlett-Packard sales representative. The following information is provided to answer some of the most common questions about the use of these parts.
NOTE 1: THE SOLDER POSTS AND ELECTRICAL PINS ARE PHOSPHOR BRONZE WITH TIN LEAD OVER NICKEL PLATING. DIMENSIONS ARE IN MILLIMETERS (INCHES).
Figure 2. Package Outline Drawing.
216
8
1 = VEE 2 = RD 3 = RD 4 = SD 5 = VCC 6 = VCC 7 = TD 8 = TD 9 = VEE N/C TOP VIEW N/C
OPTICAL POWER BUDGET - dB
7 6 5
HFBR-5301, 62.5/125m
HFBR-5302, 62.5/125m
4 3 2 1 0 0
HFBR-5302, 50/125m HFBR-5301, 50/125m
Generic Cabling for Customer Premises per DIS 11801 document and the EIA/TIA-568-A Commercial Building Telecommunications Cabling Standard per SP-2840. Transceiver Signaling Operating Rate Range and BER Performance For purposes of definition, the symbol rate (Baud), also called signaling rate, is the reciprocal of the symbol time. Data rate (bits/ sec) is the symbol rate divided by the encoding factor used to encode the data (symbols/bit). The specifications in this data sheet have all been measured using the standard Fibre Channel symbol rates of 133 Mbd or 266 MBd. The transceivers may be used for other applications at signaling rates different than specified in this data sheet. Depending on the actual signaling rate, there may be some differences in optical
1 x 10-2
0.5
1
1.5
2
FIBER OPTIC CABLE LENGTH - km
Figure 3. Pinout Diagram.
Figure 4. Optical Power Budget vs. Fiber Optic Cable Length.
Compatibility with Fibre Channel FC-0/1 Chip Sets The HFBR-5301 and HFBR-5302 transceivers are compatible with various manufacturers FC-0 and FC-1 integrated circuits. Evaluation boards, which include the Hewlett-Packard transceivers, are available from these manufacturers. The Applications Engineering group in the Hewlett- Packard Optical Communication Division is available to assist you with implementation details. Transceiver Optical Power Budget vs. Link Length Optical Power Budget (OPB) is the available optical power for a fiber optic link to accommodate fiber cable losses plus losses due to in-line connectors, splices, optical switches, and to provide margin for link aging and unplanned losses due to cable plant reconfiguration or repair. Figure 4 illustrates the predicted OPB associated with the two transceivers specified in this data sheet at the Beginning of Life (BOL). These curves represent the attenuation and chromatic plus modal dispersion losses associated with the 62.5/125 m and 50/125 m fiber cables only. The area under the curves
represents the remaining OPB at any link length, which is available for overcoming non-fiber cable losses. Hewlett-Packard LED technology has produced 1300 nm LED devices with lower aging characteristics than normally associated with these technologies in the industry. The industry convention is 1.5 dB aging for 1300 nm LEDs. The HP LEDs will experience less than 1 dB of aging over normal commercial equipment mission life periods. Contact your Hewlett-Packard sales representative for additional details. Figure 4 was generated with a Hewlett-Packard fiber optic link model containing the current industry conventions for fiber cable specifications and the Fibre Channel optical parameters. These parameters are reflected in the specified performance of the transceiver in this data sheet. This same model has been used extensively in the ANSI and IEEE committees, including the ANSI X3T9.5 committee, to establish the optical performance requirements for various fiber-optic interface standards. The cable parameters used come from the ISO/IEC JTC1/SC 25/WG3
1 x 10-3
BIT ERROR RATE
1 x 10-4 1 x 10-5 1 x 10-6 1 x 10-7 1 x 10-8 1 x 10-9 1 x 10-10 1 x 10-11 1 x 10-12 -6
-4
-2
0
2
RELATIVE INPUT OPTICAL POWER - dB CONDITIONS: 1. 133 & 266 MBd 2. PRBS 27-1 3. CENTER OF SYMBOL SAMPLING 4. TA = 25 C 5. VCC = 5 VDC 6. INPUT OPTICAL RISE/FALL TIMES = 1.0/1.9 ns
Figure 5. HFBR-5301/5302 Bit Error Rate vs. Relative Receiver Input Optical Power.
217
power budget to do this. This is primarily caused by a change of receiver sensitivity. These transceivers can also be used for applications which require different Bit Error Rate (BER) performance. Figure 5 illustrates the typical trade-off between link BER and the receivers input optical power level. Transceiver Jitter Performance The Hewlett-Packard 1300 nm transceivers are designed to operate per the system jitter allocations stated in FC-PH Annex A.4.3 and A.4.4.
may be induced by electrostatic discharge (ESD). These transceivers are certified as MIL-STD883C Method 3015.4 Class 2 devices. Care should be used to avoid shorting the receiver data or signal detect outputs directly to ground. Solder and Wash Process Compatibility The transceivers are delivered with a protective process plug inserted into the duplex SC connector receptacle. This process plug protects the optical subassemblies during wave solder and aqueous wash processing and acts as a dust cover during shipping.
These transceivers are compatible with industry standard wave and hand solder processes. Shipping Container The transceiver is packaged in a shipping container designed to protect it from mechanical and ESD damage during shipment or storage. Board Layout - Decoupling Circuit and Ground Planes You should take care in the layout of your circuit board to achieve optimum performance from these transceivers. Figure 6 provides a good example of a schematic for a power supply decoupling circuit that works well with these parts. Hewlett-Packard further recommends that a contiguous ground
The HP 1300 nm transmitters will tolerate the worst case input electrical jitter allowed, without violating the worst case output optical jitter requirements. The HP 1300 nm receivers will tolerate the worst case input optical jitter allowed without violating the worst case output electrical jitter allowed.
The jitter specifications stated in the following tables are derived from the values in FC-PH Annex A.4.3 and A.4.4. They represent the worst case jitter contribution that the transceivers are allowed to make to the overall system jitter without violating the allowed allocation. In practice, the typical contribution of the HP transceivers is below these maximum allowed amounts.
Recommended Handling Precautions Hewlett-Packard recommends that normal static precautions be taken in handling and assembly of these transceivers to prevent damage and/or degradation which 218
, , , ,, ,
NO INTERNAL CONNECTION NO INTERNAL CONNECTION HFBR-530X TOP VIEW Rx VEE 1 RD 2 RD 3 SD 4 Rx VCC 5 Tx VCC 6 TD 7 TD 8 Tx VEE 9 C1 C2 TERMINATION AT PHY DEVICE INPUTS L1 L2 VCC R2 R3 VCC C3 C4 R1 R4 R5 R7
VCC FILTER AT VCC PINS TRANSCEIVER
C5
C6
R6
R8
R9
R10
TERMINATION AT TRANSCEIVER INPUTS
RD
RD
SD
VCC
TD
TD
NOTES: THE SPLIT-LOAD TERMINATIONS FOR ECL SIGNALS NEED TO BE LOCATED AT THE INPUT OF DEVICES RECEIVING THOSE ECL SIGNALS. RECOMMEND 4-LAYER PRINTED CIRCUIT BOARD WITH 50 OHM MICROSTRIP SIGNAL PATHS BE USED. R1 = R4 = R6 = R8 = R10 = 130 ohms. R2 = R3 = R5 = R7 = R9 = 82 ohms. C1 = C2 = C3 = C5 = C6 = 0.1 F. C4 = 10 F. L1 = L2 = 1 H COIL OR FERRITE INDUCTOR.
Figure 6. Recommended Decoupling and Termination Circuits.
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. Board Layout - Hole Pattern The Hewlett-Packard transceiver complies with the circuit board "Common Transceiver Footprint" hole pattern defined in the original multisource announcement for the 1x9 pin 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. Board Layout - Art Work The Applications Engineering group has developed Gerber file art work for a multilayer printed circuit board layout incorporating the recommendations above. Contact your local HewlettPackard sales representative for details.
Regulatory Compliance These transceiver products are intended to enable system designers to develop equipment that complies with the various international regulations governing certification of Information Technology Equipment. See the Regulatory Compliance Table for details. Electromagnetic Interference (EMI) Most equipment designs utilizing these high-speed transceivers from Hewlett-Packard will need to meet the requirements of the FCC in the United States, CENELEC EN55022 (CISPR 22) in Europe and VCCI in Japan. The HFBR-5301 and HFBR-5302 are suitable for use in designs ranging from a single transceiver in a desktop computer to large quantities of transceivers in a hub, switch or concentrator. Electrostatic Discharge (ESD) There are two design cases in which immunity to ESD damage is important.
(2X) o 1.9 0.1 .075 .004 O0.000 M A
The first case is during handling of the transceiver prior to mounting it on the circuit board. You should use normal ESD handling precautions for ESD sensitive devices. These precautions include using grounded wrist straps, work benches, and floor mats in ESD controlled areas. The second case to consider is static discharges to the exterior of the equipment chassis containing the transceiver parts. To the extent that the transceiver duplex SC connector is exposed to the outside of the equipment chassis, it may be subject to whatever ESD system level test criteria that the equipment is intended to meet. Immunity Equipment utilizing these transceivers will be subject to radiofrequency electromagnetic fields in some environments. These transceivers have a high immunity to such fields (see AN1075, "Testing and Measuring Electromagnetic Compatibility Performance of the HFBR-510X/520X Fiber-Optic Transceivers," 59633358E). Transceiver Reliability and Performance Qualification Data The 1x9 transceivers have passed Hewlett-Packard reliability and performance qualification testing and are undergoing ongoing quality monitoring. Details are available from your HewlettPackard sales representative. These transceivers are manufactured at the Hewlett-Packard Singapore location which is an ISO 9002 certified facility.
20.32 .800
-A-
20.32 .800
(9X) o 0.8 0.1 .032 .004 O0.000 M A
(8X) 2.54 .100 TOP VIEW
Figure 7. Recommended Board Layout Hole Pattern.
219
Regulatory Compliance Table
Feature Electrostatic Discharge (ESD) to the Electrical Pins Electrostatic Discharge (ESD) to the Duplex SC Receptacle Electromagnetic Interference (EMI) Test Method Mil-STD-883C Method 3015.4 Variation of IEC 801-2 FCC Class B CENELEC EN55022 Class B (CISPR 22B) VCCI Class 2 Variation of IEC 801-3 Performance Class 2 (2000 to 3999 Volts) Withstand up to 2200 V applied between electrical pins. Typically withstand at least 25 kV without damage when the Duplex SC Connector Receptacle is contacted by a Human Body Model Probe. Transceivers typically provide a 13 dB margin at 133 MBd, and a 7 dB margin at 266 MBd to the noted standard limits when tested at a certified test range with the transceiver mounted to a circuit card without a chassis enclosure. Typically show no measurable effect from a 10 V/m field swept from 10 to 450 MHz applied to the transceiver when mounted to a circuit card without a chassis enclosure.
Immunity
RELATIVE INPUT OPTICAL POWER - dB
c - TRANSMITTER OUTPUT OPTICAL SPECTRAL WIDTH (FWHM) - nm
220 200 180 160 140 120 100 80 60 1280 1300 1320 1340 1360 1380 TRANSMITTER OUTPUT OPTICAL RISE TIMES - ns tr = 1.8 ns tr = 1.9 ns tr = 2.0 ns tr = 2.1 ns tr = 2.2 ns
4
3
2
1
0
-1 -3
-2
-1
0
1
2
3
c - TRANSMITTER OUTPUT OPTICAL CENTER WAVELENGTH - nm
EYE SAMPLING TIME POSITION - ns CONDITIONS: 1. TA = 25 C 2. VCC = 5 VDC 3. INPUT OPTICAL RISE/FALL TIMES = 1.0/1.9 ns 4. INPUT OPTICAL POWER IS NORMALIZED TO CENTER OF DATA SYMBOL 5. NOTES 11a AND 12a APPLY
HFBR-5302 Typical Transmitter test results of c, and tr are correlated and comply with the allowed spectral width as a function of center wavelength for various rise and fall times.
Figure 9. HFBR-5301, Relative Input Optical Power vs. Eye Sampling Time Position.
Figure 8. Typical Transmitter Output Optical Spectral Width (FWHM) vs. Transmitter Output Optical Center Wavelength and Rise/Fall Times.
220
RELATIVE INPUT OPTICAL POWER - dB
5
Ordering Information
The HFBR-5301 and HFBR-5302 1300 nm products are available for production orders through the Hewlett-Packard Component Sales Offices and Authorized Distributors world wide.
4
Accessory Duplex SC Connectored Cable Assemblies
Hewlett-Packard also offers two compatible Duplex SC connectored jumper cable assemblies to assist you in the evaluation of these transceiver products. These cables may be purchased from HP with the following part numbers. They are available through the Hewlett-Packard Component Field Sales Offices and Authorized Distributors world wide. 1. HFBR-BKD001 A duplex cable 1 meter long assembled with 62.5/125 m fiber and Duplex SC connector plugs on both ends. 2. HFBR-BKD010 A duplex cable 10 meters long assembled with 62.5/125 m fiber and Duplex SC connector plugs on both ends.
3
2
1
0 -1.5
Applications Support Materials
-1 -0.5 0 0.5 1 1.5
EYE SAMPLING TIME POSITION - ns CONDITIONS: 1. TA = 25 C 2. VCC = 5 VDC 3. INPUT OPTICAL RISE/FALL TIMES = 1.0/1.9 ns 4. INPUT OPTICAL POWER IS NORMALIZED TO CENTER OF DATA SYMBOL 5. NOTES 11 AND 12 APPLY
Contact your local HewlettPackard Component Field Sales Office for information on how to obtain PCB layouts and Test fixtures for the 1x9 transceivers.
Figure 10. HFBR-5302, Relative Input Optical Power vs. Eye Sampling Time Position.
221
HFBR-5301, -5302 Absolute Maximum Ratings
Parameter Storage Temperature Lead Soldering Temperature Lead Soldering Time Supply Voltage Data Input Voltage Differential Input Voltage Output Current Symbol TS TSOLD tSOLD VCC VI VD IO Min. -40 Typ. Max. 100 260 10 7.0 VCC 1.4 50 Unit C C sec. V V V mA Reference
-0.5 -0.5
Note 1
HFBR-5301, -5302 Recommended Operating Conditions
Parameter Operating Temperature - Ambient Supply Voltage Data Input Voltage - Low Data Input Voltage - High Data and Signal Detect Output Load Symbol TA VCC VIL - VCC VIH - VCC RL Min. 0 4.75 -1.810 -1.165 Typ. Max. 70 5.25 -1.475 -0.880 Unit C V V V Reference
50
Note 3
HFBR-5301, -5302 Transmitter Electrical Characteristics
(TA = 0C to 70C, VCC = 4.75 V to 5.25 V) Parameter Supply Current Power Dissipation Data Input Current - Low Data Input Current - High Symbol ICC PDISS IIL IIH Min. Typ. 165 0.86 0 14 Max. 205 1.1 350 Unit mA W A A Reference Note 4 Note 4
-350
HFBR-5301, -5302 Receiver Electrical Characteristics
(TA = 0C to 70C, VCC = 4.75 V to 5.25 V) Parameter Supply Current Power Dissipation Data Output Voltage - Low Data Output Voltage - High Data Output Rise Time Data Output Fall Time Signal Detect Output Voltage - Low Signal Detect Output Voltage - High Signal Detect Output Rise Time Signal Detect Output Fall Time Signal Detect Assert Time (off to on) Signal Detect Deassert Time (on to off) 222 Symbol ICC PDISS VOL - VCC VOH - VCC tr tf VOL - VCC VOH - VCC tr tf AS_Max ANS_Max Min. Typ. 100 0.3 Max. 165 0.5 -1.620 -0.880 2.2 2.2 -1.620 -0.880 2.2 2.2 100 350 Unit mA W V V ns ns V V ns ns s s Reference Note 15 Note 16 Note 17 Note 17 Note 18 Note 18 Note 17 Note 17 Note 18 Note 18 Note 19 Note 20
-1.840 -1.045 0.35 0.35 -1.840 -1.045 0.35 0.35 0 0
55 110
HFBR-5301 Transmitter Optical Characteristics
(TA = 0C to 70C, VCC = 4.75 V to 5.25 V) Parameter Output Optical Power 62.5/125 m, NA = 0.275 Fiber Output Optical Power 50/125 m, NA = 0.20 Fiber Optical Extinction Ratio Center Wavelength Spectral Width - FWHM Optical Rise Time Optical Fall Time Deterministic Jitter Contribution of Transmitter Random Jitter Contribution of Transmitter Symbol PO, BOL PO, EOL PO, BOL Min. -21 -22 -24.5 Typ. Max. -14 -14 -14 Unit Reference dBm avg. Note 5 dBm avg. dBm avg. Note 5 % dB nm nm ns ns ns p-p Note 10 ns p-p Note 6
C tr tf DJC RJC
1270
0.001 0.03 -50 -35 1308 1380 137 250 4 4 0.16T 1.20 0.09T 0.68
Note 8a Note 8a Note 9
HFBR-5301 Receiver Optical Characteristics
(TA = 0C to 70C, VCC = 4.75 V to 5.25 V) Parameter Input Optical Power Minimum at Window Edge Input Optical Power Minimum at Eye Center Input Optical Power Maximum Operating Wavelength Signal Detect - Asserted Signal Detect - Deasserted Signal Detect - Hysteresis Symbol PIN Min. (W) PIN Min. (C) PIN Max. PA PD PA - PD -14 1260 PD + 1.5 dB -45 1.5 Min. Typ. Max. -28 -29 Unit Reference dBm avg. Note 11a Figure 9 dBm avg. Note 12a Figure 9 dBm avg. Note 11a nm dBm avg. Note 13, 19 dBm avg. Note 14, 20 dB
1360 -31 2.4
HFBR-5301 Receiver Electrical Characteristics
(TA = 0C to 70C, VCC = 4.75 V to 5.25 V) Parameter Deterministic Jitter Contributed by the Receiver Random Jitter Contributed by the Receiver Symbol DJC RJC Min. Typ. Max. 0.19T 1.43 0.35T 2.64 Unit ns p-p ns p-p Note 10, 11a Reference Note 9, 11a
223
HFBR-5302 Transmitter Optical Characteristics
(TA = 0C to 70C, VCC = 4.75 V to 5.25 V) Parameter Output Optical Power 62.5/125 m, NA = 0.275 Fiber Output Optical Power 50/125 m, NA = 0.20 Fiber Optical Extinction Ratio Center Wavelength Spectral Width - FWHM Optical Rise Time Optical Fall Time Deterministic Jitter Contribution of Transmitter Random Jitter Contribution of Transmitter Symbol PO, BOL PO, EOL PO, BOL Min. -19 -20 -22.5 Typ. Max. Unit Reference -14 dBm avg. Note 5 -14 dBm avg. -14 dBm avg. Note 5 0.03 -35 1380 % dB nm nm 2.0 2.2 0.08T 0.30 0.03T 0.11 ns ns Note 6 Note 7 Figure 8 Note 7 Figure 8 Note 8 Figure 8 Note 8 Figure 8 Note 9 Note 10 ns p-p
C tr tf DJC RJC
1280
1308 137
0.6 0.6
ns p-p
HFBR-5302 Receiver Optical Characteristics
(TA = 0C to 70C, VCC = 4.75 V to 5.25 V) Parameter Input Optical Power Minimum at Window Edge Input Optical Power Minimum at Eye Center Input Optical Power Maximum Operating Wavelength Signal Detect - Asserted Signal Detect - Deasserted Signal Detect - Hysteresis Symbol PIN Min. (W) PIN Min. (C) PIN Max. PA PD PA - PD -14 1270 PD + 1.5 dB -45 1.5 Min. Typ. Max. Unit Reference -26 dBm avg. Note 11 Figure 10 -28 dBm avg. Note 12 Figure 10 dBm avg. Note 11 1380 nm -27 dBm avg. Note 13, 19 dBm avg. Note 14, 20 dB
2.4
HFBR-5302 Receiver Electrical Characteristics
(TA = 0C to 70C, VCC = 4.75 V to 5.25 V) Parameter Deterministic Jitter Contributed by the Receiver Random Jitter Contributed by the Receiver 224 Symbol DJC RJC Min. Typ. Max. 0.24T 0.90 0.26T 0.97 Unit ns p-p Note 10, 11 ns p-p Reference Note 9, 11
Notes: 1. This is the maximum voltage that can be applied across the Differential Transmitter Data Inputs to prevent damage to the input ESD protection circuit. 2. When component testing these products do not short the receiver data or signal detect outputs directly to ground to avoid damage to the part. 3. The outputs are terminated with 50 connected to VCC - 2 V. 4. The power supply current needed to operate the transmitter is provided to differential ECL circuitry. This circuitry maintains a nearly constant current flow from the power supply. Constant current operation helps to prevent unwanted electrical noise from being generated and conducted or emitted to neighboring circuitry. 5. These optical power values are measured as follows: * The Beginning of Life (BOL) to the End of Life (EOL) optical power degradation is typically 1.5 dB per the industry convention for long wavelength LEDs. The actual degradation observed in HewlettPackard's 1300 nm LED products is < 1 dB as specified in this data sheet. * Over the specified operating voltage and temperature ranges. * With 25 MBd (12.5 MHz squarewave) input signal. * At the end of one meter of noted optical fiber with cladding modes removed. The average power value can be converted to a peak power value by adding 3 dB. Higher output optical power transmitters are available on special request. 6. The Extinction Ratio is a measure of the modulation depth of the optical signal. The data "0" output optical power is compared to the data "1" peak output optical power and expressed as a percentage. With the transmitter driven by a 12.5 MHz square-wave signal, the average optical power is measured. The data "1" peak power is then calculated by adding 3dB to the measured average optical power. The data "0" output optical power is found by measuring the optical power when the transmitter is driven by a logic "0" input. The
7.
8.
8.a.
9.
10.
11.
extinction ratio is the ratio of the optical power at the "0" level compared to the optical power at the "1" level expressed as a percentage or in decibels. This parameter complies with the requirements for the tradeoffs between center wave-length, spectral width, and rise/fall times shown in Figure 8. The optical rise and fall times are measured from 10% to 90% when the transmitter is driven by a 25 MBd (12.5 MHz square-wave) input signal. This parameter complies with the requirements for the tradeoffs between center wavelength, spectral width, and rise/fall times shown in Figure 8. The optical rise and fall times are measured from 10% to 90% when the transmitter is driven by a 25 MBd (12.5 MHz square-wave) input signal. Deterministic Jitter is defined as the combination of Duty Cycle Distortion and Data Dependent Jitter. Deterministic Jitter is measured with a test pattern consisting of repeating K28.5 (00111110101100000101) data bytes and evaluated per the method in FC-PH Annex A.4.3. Random Jitter is specified with a sequence of K28.7 (square wave of alternating 5 ones and 5 zeros) data bytes and evaluated at a Bit Error Ratio (BER) of 1 x 10-12 per the method in FC-PH Annex A.4.4. This specification is intended to indicate the performance of the receiver section of the transceiver when Input Optical Power signal characteristics are present per the following definitions. The Input Optical Power dynamic range from the minimum level (with a window time-width) to the maximum level is the range over which the receiver is specified to provide output data with a Bit Error Rate (BER) better than or equal to 1 x 10-12. * At the Beginning of Life (BOL) * Over the specified operating temperature and voltage ranges. * Input is a 266 MBd, 27 - 1 psuedorandom data pattern. * Receiver data window time-width is 0.94 ns or greater and centered at mid-symbol. This data
window time width is calculated to simulate the effect of worst case input jitter per FC-PH Annex J and clock recovery sampling position in order to insure good operation with the various FC-0 receiver circuits. * The integral transmitter is operating with a 266 MBd, 133 MHz square-wave, input signal to simulate any cross-talk present between the transmitter and receiver sections of the transceiver. * The maximum total jitter added by the receiver and the maximum total jitter presented to the clock recovery circuit comply with the maximum limits listed in Annex J, but the allocations of the Rx added jitter between deterministic jitter and random jitter are different than in Annex J. 11a. Same as Note 11 except: * The receiver input signal is a 133 MBd, 27 - 1 psuedorandom data patter. * The integral transmitter is operating with a 133 MBd, 66.5 MHz square wave. * The receiver data window width is 1.73 ns. * The receiver added jitter maximums and allocations are identical to the limits listed in Annex J. 12. All conditions of Note 11 apply except that the measurement is made at the center of the symbol with no window time-width. 12a. All conditions of Note 11a apply except that the measurement is made at the center of the symbol with no window time-width. 13. This value is measured during the transition from low to high levels of input optical power. 14. This value is measured during the transition from high to low levels of input optical power. 15. These values are measured with the outputs terminated into 50 connected to VCC - 2 V and an input optical power level of -14 dBm average. 16. The power dissipation value is the power dissipated in the receiver itself. Power dissipation is calculated as the sum of the products of supply voltage and supply current, minus
225
the sum of the products of the output voltages and currents. 17. These values are measured with respect to VCC with the output terminated into 50 connected to VCC - 2 V. 18. The output rise and fall times are measured between 20% and 80% levels with the output connected to VCC - 2 V through 50 . 19. The Signal Detect output shall be asserted within 100 s after a step increase of the Input Optical Power. 20. Signal detect output shall be deasserted within 350 s after a step decrease in the Input Optical Power.
226

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