HFBR-1527ETZ

HFBR-0507ETZ Series HFBR-1527ETZ Transmitters HFBR-2526ETZ Receivers 125 Megabaud Versatile Link The Versatile Fiber Optic Connection Data Sheet Description Features The 125 MBd Versatile Link (HFBR-0507ETZ Series) is the most cost-effective fiber-optic solution for transmission of 125 MBd data over 100 m. The data link consists of a 650 nm LED transmitter, HFBR-1527ETZ, and a PIN/ preamp receiver, HFBR-2526ETZ. These can be used with low-cost plastic or silica fiber. One mm diameter plastic fiber provides the lowest cost solution for distances under 25 m. The lower attenuation of silica fiber allows data transmission over longer distance, for a small difference in cost. These components can be used for high speed data links without the problems common with copper wire solutions, at a competitive cost.  -40° to +85°C operating temperature range The HFBR-1527ETZ transmitter is a high power 650 nm LED in a low cost plastic housing designed to efficiently couple power into 1 mm diameter plastic optical fiber and 200 m Hard Clad Silica (HCS®) fiber. With the recommended drive circuit, the LED operates at speeds from 1-125 MBd. The HFBR-2526ETZ is a high bandwidth analog receiver containing a PIN photodiode and internal transimpedance amplifier. With the recommended application circuit for 125 MBd operation, the performance of the complete data link is specified for of 0-25 m with plastic fiber and 0-100 m with 200 m HCS fiber. A wide variety of other digitizing circuits can be combined with the HFBR-0507ETZ Series to optimize performance and cost at higher and lower data rates. HCS is a registered trademark of OFS Corporation.  RoHS-compliant  Data transmission at signal rates of 1 to 125 MBd over distances of 100 m  Compatible with inexpensive, easily terminated plastic optical fiber, and with large core silica fiber  High voltage isolation  Transmitter and receiver application circuit schematics and recommended board layouts available  Interlocking feature for single channel or duplex links, in a vertical or horizontal mount configuration Applications  Intra-system links: board-to-board, rack-to-rack  Telecommunications switching systems  Computer-to-peripheral data links, PC bus extension  Industrial control  Proprietary LANs  Renewable energies  Medical instruments  Reduction of lightning and voltage transient susceptibility HFBR-0507ETZ Series 125 MBd Data Link Data link operating conditions and performance are specified for the HFBR-1527ETZ transmitter and HFBR-2526ETZ receiver in the recommended applications circuits shown in Figure 1. This circuit has been optimized for 125 MBd operation. For other data rate application, please refer to application notes: AN1121, AN1122 and AN1123. Recommended Operating Conditions for the Circuits in Figures 1 and 2 Parameter Symbol Min. Max. Unit Ambient Temperature TA -40 85 °C Supply Voltage VCC +4.75 +5.25 V Data Input Voltage – Low VIL VCC -1.89 VCC -1.62 V Data Input Voltage – High VIH VCC -1.06 VCC -0.70 V Data Output Load RL 45 55  Signaling Rate fS 1 125 MBd Duty Cycle D.C. 40 60 % Reference Note 1 Note 2 Link Performance 1-125 MBd, BER ≤ 10-9, under recommended operating conditions with recommended transmit and receive application circuits. Parameter Symbol Min.[3] Typ.[4] Optical Power Budget, 1 m POF OPBPOF 11 16 dB Note 5,6,7 Optical Power Margin, 20 m Standard POF OPMPOF,20 3 6 dB Note 5,6,7 Max. Unit Condition Reference Link Distance with Standard 1 mm POF l 20 27 m Optical Power Margin, 25 m Low Loss POF OPMPOF,25 3 6 dB Link Distance with Extra Low Loss 1 mm POF l 25 32 m Optical Power Budget, 1 m HCS OPBHCS 7 12 dB Note 5,6,7 Optical Power Margin, 100 m HCS OPMHCS,100 3 6 dB Note 5,6,7 Link Distance with HCS Cable l 100 125 m Note 5,6,7 Notes: 1. If the output of U4C in Figure 1, page 4 is transmitted via coaxial cable, terminate with a 50  resistor to VCC - 2 V. 2. Run length limited code with maximum run length of 10 s. 3. Minimum link performance is projected based on the worst case specifications of the HFBR-1527ETZ transmitter, HFBR-2526ETZ receiver, and POF cable, and the typical performance of other components (e.g. logic gates, transistors, resistors, capacitors, quantizer, HCS cable). 4. Typical performance is at 25° C, 125 MBd, and is measured with typical values of all circuit components. 5. Standard cable is HFBR-RXXYYYZ plastic optical fiber, with a maximum attenuation of 0.24 dB/m at 650 nm and NA = 0.5. Extra low loss cable is plastic optical fiber, with a maximum attenuation of 0.19 dB/m at 650 nm and NA = 0.5. HCS cable is glass optical fiber, with a maximum attenuation of 10 dB/km at 650 nm and NA = 0.37. 6. Optical Power Budget is the difference between the transmitter output power and the receiver sensitivity, measured after 1 m of fiber. The minimum OPB is based on the limits of optical component performance over temperature, process, and recommended power supply variation. 7. The Optical Power Margin is the available OPB after including the effects of attenuation and modal dispersion for the minimum link distance: OPM = OPB – (attenuation power loss + modal dispersion power penalty). The minimum OPM is the margin available for long term LED LOP degradation and additional fixed passive losses (such as in-line connectors) in addition to the minimum specified distance. 2 Plastic Optical Fiber (1 mm POF) Transmitter Application Circuit Performance of the HFBR-1527ETZ transmitter in the recommended application circuit (Figure 1) for POF; 1-125 MBd, 25° C. Parameter Symbol Typical Unit Condition Note Average Optical Power 1 mm POF Pavg -9.7 dBm 50% Duty Cycle Note 1, Fig 3 Average Modulated Power 1 mm POF Pmod -11.3 dBm Optical Rise Time (10% to 90%) tr 2.1 ns 5 MHz Optical Fall Time (90% to 10%) tf 2.8 ns 5 MHz High Level LED Current (On) IF,H 19 mA Note 3 Low Level LED Current (Off ) IF,L 3 mA Note 3 45 % ICC 110 mA Optical Overshoot – 1 mm POF Transmitter Application Circuit Current Consumption – 1 mm POF Note 2, Fig 3 Figure 1 Hard Clad Silica Fiber (200 μm HCS) Transmitter Application Circuit Performance of the HFBR-1527ETZ transmitter in the recommended application circuit (Figure 1) for HCS; 1-125 MBd, 25° C. Parameter Symbol Typical Unit Condition Note Average Optical Power 200 μm HCS Pavg -14.6 dBm 50% Duty Cycle Note 1, Fig 3 Average Modulated Power 200 μm HCS Pmod -16.2 dBm Optical Rise Time (10% to 90%) tr 3.1 ns 5 MHz Optical Fall Time (90% to 10%) tf 3.4 ns 5 MHz High Level LED Current (On) IF,H 60 mA Note 3 Low Level LED Current (Off ) IF,L 6 mA Note 3 30 % 130 mA Optical Overshoot – 200 m HCS Transmitter Application Circuit Current Consumption – 200 m HCS ICC Note 2, Fig 3 Figure 1 Notes: 1. Average optical power is measured with an average power meter at 50% duty cycle, after 1 m of fiber. 2. To allow the LED to switch at high speeds, the recommended drive circuit modulates LED light output between two non-zero power levels. The modulated (useful) power is the difference between the high and low level of light output power (transmitted) or input power (received), which can be measured with an average power meter as a function of duty cycle (see Figure 3). Average Modulated Power is defined as one half the slope of the average power versus duty cycle: [Pavg @ 80% duty cycle – Pavg @ 20% duty cycle] Average Modulated Power = (2) [0.80 – 0.20] 3. High and low level LED currents refer to the current through the HFBR-1527ETZ LED. The low level LED “off” current, sometimes referred to as “hold-on” current, is prebias supplied to the LED during the off state to facilitate fast switching speeds. 3 Plastic and Hard Clad Silica Optical Fiber Receiver Application Circuit Performance[4] of the HFBR-2526ETZ receiver in the recommended application circuit (Figure 1); 1-125 MBd, 25° C unless otherwise stated. Parameter Symbol Typical Unit Condition Note Data Output Voltage – Low VOL VCC -1.7 V RL = 50  Note 5 Data Output Voltage – High VOH VCC -0.9 V RL = 50  Note 5 Receiver Sensitivity to Average Modulated Optical Power 1 mm POF Pmin -27.5 dBm 50% eye opening Note 2 Receiver Sensitivity to Average Modulated Optical Power 200 m HCS Pmin -28.5 dBm 50% eye opening Note 2 Receiver Overdrive Level of Average Modulated Optical Power 1 mm POF Pmax -7.5 dBm 50% eye opening Note 2 Receiver Overdrive Level of Average Modulated Optical Power 200 m HCS Pmax -10.5 dBm 50% eye opening Note 2 Receiver Application Circuit Current Consumption ICC TBA mA RL =  Figure 1 Notes: 4. Performance in response to a signal from the HFBR-1527ETZ transmitter driven with the recommended circuit at 1-125 MBd over 1 m of HFBR-RZ/ EXXYYYZ plastic optical fiber or 1 m of hard clad silica optical fiber. 5. Terminated through a 50  resistor to VCC – 2 V. 6. If there is no input optical power to the receiver, electrical noise can result in false triggering of the receiver. In typical applications, data encoding and error detection prevent random triggering from being interpreted as valid data. L1 TDK #HF30ACB453215 +5 V R5 22 C1 0.001 PF TD+ C2 0.1 PF C3 0.1 PF Q2 BFT92 Q1 BFT92 U1C 74ACTQ00 8 9 U1A 74ACTQ00 TD– 1 + C5 10 PF C6 0.1 PF C7 0.001 PF 8 1 2 Q3 MMBT3904LT1 U2A 3 HFBR-15X7ETZ 4 R8 10 3 2 C4 0.001 PF U1D 74ACTQ00 12 11 5 13 R9 U1B 74ACTQ00 4 C8 6 R10 5 R6 91 R11 R7 91 0V 8 1 U3A 2 HFBR- 3 2526ETZ 4 C13 1 nF 5 C12 10 nFC11 10 nF C14 10 nF R13 4.7 C9 + 0.1 PF R12 4.7 1 Caz2 Caz+ 3 GDNa 4 Din Vset 16 NC 15 Vcce 14 Dout 13 5 Din 6 Vcca 7 CF 8 JAM Dout 12 GDNe 11 ST 10 ST 9 MC2045-2Y R14 800 RD+ RD- R18 2.2k R17 2.2k C19 0.1 PF + C20 10 PF C21 0.1 PF L2 COILCRAFT 1008LS-122XKBC C10 0.1 PF Figure 1. Transmitter and receiver application circuit with +5 V ECL inputs and outputs. 4 SD+ L3 COILCRAFT 1008LS-122XKBC +5 V + C22 10 PF 0V 120 120 +5 V ECL SERIAL DATA SOURCE 82 0.1 μF 5V 9 TX VEE 82 8 TD +  7 TD 4.7 μH + 10 μF 0.1 μF 6 TX VCC 0.1 μF 5 RX VCC 82 82 10 μF + 0.1 μF 4 4.7 μH FIBER-OPTIC TRANSCEIVER SHOWN IN FIGURE 1 3 RD +5 V ECL SERIAL DATA RECEIVER 2 RD 120 1 RX VEE 4.7 μH 120 Figure 2. Recommended power supply filter and +5 V ECL signal terminations for the transmitter and receiver application circuit of Figure 1 21 OPTICAL POWER BUDGET  dB AVERAGE POWER  μW 200 150 100 AVERAGE MODULATED POWER 50 AVERAGE POWER, 50% DUTY CYCLE 0 0 20 40 60 DUTY CYCLE  % Figure 3. Average modulated power 5 80 100 POF 19 17 15 HCS 13 11 9 10 30 50 70 90 110 DATA RATE  MBd Figure 4. Typical optical power budget vs. data rate 130 150 125 Megabaud Versatile Link Transmitter HFBR-1527ETZ Series Description The HFBR-1527ETZ transmitters incorporate a 650 nanometer LED in a horizontal (HFBR-1527ETZ) gray housing. The HFBR-1527ETZ transmitters are suitable for use with current peaking to decrease response time and can be used with HFBR-2526ETZ receivers in data links operating at signal rates from 1 to 125 megabaud over 1 mm diameter plastic optical fiber or 200 m diameter hard clad silica glass optical fiber. GROUND ANODE CATHODE GROUND 1 2 GROUND 4 3 GROUND SEE NOTE 6 Absolute Maximum Ratings Parameter Symbol Min. Max. Unit Storage Temperature TS -40 85 °C Operating Temperature TO -40 85 °C 260 10 °C s Note 1, 9 IF,H 120 mA 50% Duty Cycle ≥ 1 MHz Transmitter Average Forward Input Current IF,AV 60 mA Reverse Input Voltage VR 3 V Lead Soldering Temperature Cycle Time Transmitter High Level Forward Input Current Reference CAUTION: The small junction sizes inherent to the design of this component increase the component’s susceptibility to damage from electrostatic discharge (ESD). It is advised that normal static precautions be taken in handling and assembly of this component to prevent damage and/or degradation which may be induced by ESD. WARNING: when viewed under some conditions, the optical port may expose the eye beyond the maximum permissible exposure recommended in ansi z136.2, 1993. Under most viewing conditions there is no eye hazard. 6 Electrical/Optical Characteristics -40 to 85° C, unless otherwise stated. Parameter Symbol Min. Typ.[2] Max. Unit Condition Note Transmitter Output Peak Optical Power, 1 mm POF PT -9.5 -10.4 -7.0 -4.8 -3.5 dBm IF,dc = 20 mA, 25° C -40 - 85° C Note 3 NA=0.5 Transmitter Output Peak Optical Power, 1 mm POF PT -6.0 -6.9 -3.0 -0.5 0.8 dBm IF,dc = 60 mA, 25° C -40 - 85° C Note 3 NA=0.5 Transmitter Output Peak Optical Power, 200 m HCS PT -14.6 -16.0 -13.0 -10.5 -9.2 dBm IF,dc = 60 mA, 25° C -40 - 85° C Note 3 NA=0.x Output Optical Power Temperature Coefficient PT T Peak Emission Wavelength PK Peak Wavelength Temperature Coefficient  T 0.12 nm/° C Spectral Width FWHM 21 nm Full Width, Half Maximum Forward Voltage VF V IF = 60 mA Forward Voltage Temperature Coefficient VF T -1.8 mV/°C Thermal Resistance, Junction to Case jc 140 °C/W Reverse Input Breakdown Voltage VBR 13 V IF,dc = -10 A Diode Capacitance CO 60 pF VF = 0 V, f = 1 MHz Unpeaked Optical Rise Time, 10% – 90% tr 10 ns IF = 60 mA f = 100 kHz Figure 1 Note 5 Unpeaked Optical Fall Time, 90% –10% tf 11 ns IF = 60 mA f = 100 kHz Figure 1 Note 5 -0.02 635 1.8 3.0 650 2.1 dB/° C 662 2.65 nm Note 4 Notes: 1. 1.6 mm below seating plane. 2. Typical data is at 25° C. 3. Optical power measured at the end of either 0.5m of 1mm diameter POF (NA=0.5) or 5m of 200 um diameter HCS (NA=0.37) with a large area detector. 4. Typical value measured from junction to PC board solder joint for horizontal mount package, HFBR-1527ETZ. 5. Optical rise and fall times can be reduced with the appropriate driver circuit. 6. Pins 5 and 8 are primarily for mounting and retaining purposes, but are electrically connected; pins 3 and 4 are electrically unconnected. It is recommended that pins 3, 4, 5, and 8 all be connected to ground to reduce coupling of electrical noise. 7. Refer to the Versatile Link Family Fiber Optic Cable and Connectors Technical Data Sheet for cable connector options for 1 mm plastic optical fiber. 8. The LED current peaking necessary for high frequency circuit design contributes to electromagnetic interference (EMI). Care must be taken in circuit board layout to minimize emissions for compliance with governmental EMI emissions regulations. 9. Moisture sensitivity level is MSL-4 7 NORMALIZED SPECTRAL OUTPUT POWER HP8082A PULSE GENERATOR BCP MODEL 300 500 MHz BANDWIDTH SILICON AVALANCHE PHOTODIODE 50 W LOAD RESISTOR HP54002A 50 W BNC INPUT POD HP54100A OSCILLOSCOPE VF - FORWARD VOLTAGE - V PT - NORMALIZED OUTPUT POWER - dB -40 25 85 2.1 2 1.9 1.8 1.7 1.6 1 10 IF-DC - TRANSMITTER DRIVE CURRENT (mA) Figure 7. Typical forward voltage vs. drive current 8 25° C 0.8 0.6 0.4 0.2 630 640 650 660 WAVELENGTH (nm) 670 680 Figure 6. Typical spectra at 25° C 2.4 2.2 1.0 0 620 Figure 5. Test circuit for measuring unpeaked rise and fall times 2.3 1.2 100 2 -40 25 85 0 -2 -4 -6 -8 -10 -12 -14 -16 1 10 IF-DC - TRANSMITTER DRIVE CURRENT (mA) Figure 8. Typical normalized output optical power vs. drive current 100 125 Megabaud Versatile Link Receiver HFBR-2526ETZ Series Description The HFBR-2526ETZ receivers contain a PIN photodiode and transimpedance pre-amplifier circuit in a horizontal (HFBR-2526ETZ) blue housing, and are designed to interface to 1 mm diameter plastic optical fiber or 200 m hard clad silica glass optical fiber. The receivers convert a received optical signal to an analog output voltage. Follow-on circuitry can optimize link performance for a variety of distance and data rate requirements. Electrical bandwidth greater than 65 MHz allows design of high speed data links with plastic or hard clad silica optical fiber. GROUND V 4 CC GROUND 3 GROUND GROUND 2 SIGNAL 1 SEE NOTES 2, 4, 9 Absolute Maximum Ratings Parameter Symbol Min. Max. Unit Storage Temperature TS -40 85 °C Operating Temperature TA -40 85 °C 260 10 °C s Lead Soldering Temperature Cycle Time Signal Pin Voltage VO -0.5 VCC V Supply Voltage VCC -0.5 6.0 V Output Current IO 25 mA Reference Note 1, 11 CAUTION: The small junction sizes inherent to the design of this component increase the component’s susceptibility to damage from electrostatic discharge (ESD). It is advised that normal static precautions be taken in handling and assembly of this component to prevent damage and/or degradation which may be induced by ESD. 9 Electrical/Optical Characteristics -40 to 85° C; 5.25 V ≥ VCC ≥ 4.75 V; power supply must be filtered (see Figure 1, Note 2) Parameter Symbol Min. Typ. Max. Unit Test Condition Note AC Responsivity 1 mm POF RP,APF 1.7 3.9 6.5 mV/W 650 nm Note 4 AC Responsivity 200 μm HCS RP,HCS 4.5 7.9 11.5 mV/W RMS Output Noise VNO 0.46 0.69 mVRMS Note 5 Equivalent Optical Noise Input Power, RMS – 1 mm POF PN,RMS - 39 -36 dBm Note 5 Equivalent Optical Noise Input Power, RMS – 200 μm HCS PN,RMS -42 -40 dBm Note 5 Peak Input Optical Power – 1 mm POF PR -5.8 -6.4 dBm dBm 5 ns PWD 2 ns PWD Note 6 Peak Input Optical Power – 200 m HCS PR -8.8 -9.4 dBm dBm 5 ns PWD 2 ns PWD Note 6 Output Impedance ZO Ω 50 MHz Note 4 DC Output Voltage VO PR = 0 W Supply Current ICC Electrical Bandwidth BWE 30 0.8 65 Bandwidth * Rise Time 1.8 2.6 V 9 15 mA 125 MHz 0.41 Hz * s -3 dB electrical Electrical Rise Time, 10–90% tr 3.3 6.3 ns PR = -10 dBm peak Electrical Fall Time, 90–10% tf 3.3 6.3 ns PR = -10 dBm peak Pulse Width Distortion PWD 0.4 1.0 ns PR = -10 dBm peak Note 7 % PR = -10 dBm peak Note 8 Overshoot 4 Notes: 1. 1.6 mm below seating plane. 2. The signal output is an emitter follower, which does not reject noise in the power supply. The power supply must be filtered as in Figure 1. 3. Typical data are at 25° C and VCC = +5 Vdc. 4. Pin 1 should be ac coupled to a load ≥ 510  with load capacitance less than 5 pF. 5. Measured with a 3 pole Bessel filter with a 75 MHz, -3dB bandwidth. 6. The maximum Peak Input Optical Power is the level at which the Pulse Width Distortion is guaranteed to be less than the PWD listed under Test Condition. PR,Max is given for PWD = 5 ns for designing links at ≤ 50 MBd operation, and also for PWD = 2 ns for designing links up to 125 MBd (for both POF and HCS input conditions). 7. 10 ns pulse width, 50% duty cycle, at the 50% amplitude point of the waveform. 8. Percent overshoot is defined at: (VPK - V100%) ––––––––––––  100% V100% 9. Pins 5 and 8 are primarily for mounting and retaining purposes, but are electrically connected. It is recommended that these pins be connected to ground to reduce coupling of electrical noise. 10. If there is no input optical power to the receiver (no transmitted signal) electrical noise can result in false triggering of the receiver. In typical applications, data encoding and error detection prevent random triggering from being interpreted as valid data. 11. Moisture sensitivity level is MSL-4 10 HFBR-25X6ETZ Figure 9. Recommended power supply filter circuit Figure 10. Simplified receiver schematic Figure 11. Typical pulse width distortion vs. peak input power 11 Figure 12. Typical output spectral noise density vs. frequency Figure 13. Typical rise and fall time vs. temperature Versatile Link Mechanical Dimensions Versatile Link Printed Circuit Board Layout Dimensions HORIZONTAL MODULES HFBR-1527ETZ HFBR-2526ETZ TOP VIEWS HORIZONTAL MODULE 7.62 (0.300) 2.54 (0.100) 2.03 (0.080) 6.86 (0.270) TOP VIEW 10.16 (0.400) 5.08 (0.200) 18.8 (0.74) 0.64 (0.025) 1.01 (0.040) DIA. 4 3 2 1 5 PCB EDGE 8 4.19 (0.165) 7.62 (0.30) 7.62 (0.300) 1.85 MIN. (0.073) DIMENSIONS IN MILLIMETERS (INCHES). 7.62 (0.300) 3.81 (0.150) MAX. 3.56 (0.140) MIN. 0.51 (0.020) 1.27 (0.050) 2.54 (0.100) 0.64 (0.025) DIA. 2.77 (0.109) 1.85 (0.073) ELECTRICAL PIN FUNCTIONS Pin No. Transmitters HFBR-1527ETZ Receivers HFBR-2526ETZ 1 ANODE SIGNAL 2 CATHODE GROUND 3 GROUND* GROUND 4 GROUND* VCC (+5 V) 5 GROUND** GROUND** 8 GROUND** GROUND** * No internal connection ** Pins 5 and 8 connected internally to each other only. 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 © 2005-2011 Avago Technologies. All rights reserved. AV02-2590EN - August 10, 2011