HFBR-1527Z

HFBR-0507Z Series HFBR-15X7Z Transmitters HFBR-25X6Z Receivers 125 Megabaud Versatile Link The Versatile Fiber Optic Connection Data Sheet Description Features The 125 MBd Versatile Link (HFBR-0507Z Series) is the most cost-effective fiber-optic solution for transmission of 125 MBd data over 100 meters. The data link consists of a 650 nm LED transmitter, HFBR-15X7Z, and a PIN/preamp receiver, HFBR-25X6Z. These can be used with lowcost plastic or silica fiber. One mm diameter plastic fiber provides the lowest cost solution for distances under 25 meters. 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.  RoHS-compliant  Data transmission at signal rates of 1 to 125 MBd over distances of 100 meters  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 The HFBR-15X7Z 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 μm Hard Clad Silica (HCS®) fiber. With the recommended drive circuit, the LED operates at speeds from 1-125 MBd. The HFBR-25X6Z 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 meters with plastic fiber and 0-100 meters with 200 μm HCS® fiber. A wide variety of other digitizing circuits can be combined with the HFBR-0507Z Series to optimize perfor-mance and cost at higher and lower data rates. HCS® is a registered trademark of Spectran Corporation. 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 Digitized video Medical instruments Reduction of lightning and voltage transient susceptibility HFBR-0507Z Series 125 MBd Data Link Data link operating conditions and performance are specified for the HFBR-15X7Z transmitter and HFBR-25X6Z receiver in the recommended applications circuits shown in Figure 1. This circuit has been optimized for 125 MBd operation. The Applications Engineering Department in the Avago Optical Communication Division is available to assist in optimizing link performance for higher or lower speed operation. Recommended Operating Conditions for the Circuits in Figures 1 and 2. Parameter Symbol Min. Unit 70 °C TA 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 Ω fS 1 125 MBd D.C. 40 60 % Signaling Rate Duty Cycle 0 Max. Ambient Temperature 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 Link Distance with Standard 1 mm POF l 20 27 m Optical Power Margin, 25 m Low Loss POF OPMPOF,25 3 6 dB l 25 32 m OPBHCS 7 12 dB Note 5,6,7 OPMHCS,100 3 6 dB Note 5,6,7 l 100 125 m Link Distance with Extra Low Loss 1 mm POF Optical Power Budget, 1 m HCS Optical Power Margin, 100 m HCS Link Distance with HCS Cable Max. Unit Condition Reference 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 Ω resistor to VCC - 2 V. 2. Run length limited code with maximum run length of 10 μs. 3. Minimum link performance is projected based on the worst case specifications of the HFBR-15X7Z transmitter, HFBR-25X6Z 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 HFBR-EXXYYYZ plastic optical fiber, with a maximum attenuation of 0.19 dB/m at 650 nm and NA = 0.5. HCS cable is HFBR-H/VXXYYY 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 meter 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 longterm 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-15X7Z 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 Average Modulated Power 1 mm POF Pmod -11.3 dBm tr 2.1 ns 5 MHz 5 MHz Optical Rise Time (10% to 90%) 50% Duty Cycle Note 1, Fig 3 Note 2, Fig 3 Optical Fall Time (90% to 10%) tf 2.8 ns High Level LED Current (On) IF,H 19 mA Note 3 Low Level LED Current (Off ) IF,L Note 3 Optical Overshoot - 1 mm POF Transmitter Application Circuit Current Consumption - 1 mm POF ICC 3 mA 45 % 110 mA Figure 1 Hard Clad Silica Fiber (200 μm HCS) Transmitter Application Circuit: Performance of the HFBR-15X7Z 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 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 % ICC 130 mA Optical Overshoot - 200 μm HCS Transmitter Application Circuit Current Consumption - 200 μm HCS 50% Duty Cycle Note 1, Fig 3 Note 2, Fig 3 Figure 1 Notes: 1. Average optical power is measured with an average power meter at 50% duty cycle, after 1 meter 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: Average Modulated Power = [Pavg @ 80% duty cycle - Pavg @ 20% duty cycle] (2) [0.80 - 0.20] 3. High and low level LED currents refer to the current through the HFBR-15X7Z 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-25X6Z 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 Ω Note 5 Data Output Voltage - High VOH VCC -0.9 V RL = 50 Ω 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 μm 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 μm HCS Pmax -10.5 dBm 50% eye opening Note 2 ICC 85 mA RL = ∞ Figure 1 Receiver Application Circuit Current Consumption Notes: 4. Performance in response to a signal from the HFBR-15X7Z transmitter driven with the recommended circuit at 1-125 MBd over 1 meter of HFBR-RZ/EXXYYYZ plastic optical fiber or 1 meter of HFBR-H/VXXYYY hard clad silica optical fiber. 5. Terminated through a 50 Ω 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. Refer to Applications Note 1066 for design guidelines. L1 CB70-1812 C1 0.001 VCC C2 0.1 R5 22 14 9 10 U1C C3 0.1 C4 0.001 C5 10 + 7 74ACTQ00 Q1 BFQ52 R6 91 9 8 7 6 5 4 3 2 J1 1 TX VEE Q2 BASE Q1 BASE TX VCC RX VCC NC PIN 19 10H116 PIN 18 10H116 RX VEE Q2 BFQ52 1 2 12 13 U1D 3 U1A + 11 1 2 3 4 8 U2 5 HFBR-15X7Z Q3 2N3904 74ACTQ00 R9* 74ACTQ00 R7 91 4 5 U1B 6 VCC VBB R10 15 C8* C19 0.1 R12 4.7 C10 0.1 R11* ALL CAPACITOR VALUES ARE IN MICRO FARADS, WITH 10% TOLERANCE (UNLESS OTHERWISE NOTED). C9 .47 3V R24 1K C17 0.1 R22 1K R18 51 C16 0.1 MC10H116FN 18 19 U4C 15 17 C15 0.1 R25 1K R23 1K VBB C18 0.1 R13 4.7 R16 51 MC10H116FN 4 10 7 3 U4A 5 R19 51 20 MC10H116FN 9 14 13 8 U4B 12 R17 51 2 ALL RESISTANCES ARE IN OHMS WITH 5% TOLERANCE (UNLESS OTHERWISE NOTED). VBB R14 1K 8 C12 0.1 R15 1K C11 0.1 1 2 3 4 U3 5 HFBR-25X6Z 3V VCC R20 12 R21 62 VBB + C14 10 U5 TL431 Figure 1. Transmitter and receiver application circuit with +5 V ECL inputs and outputs. 4 C7 0.001 R8* 74ACTQ00 C20 10 C6 0.1 8 C13 0.1 THE VALUES OF R8, R9, R11, AND C8 ARE DIFFERENT FOR POF AND HCS DRIVE CIRCUITS. R8 R9 R11 C8 HCS TOLERANCE POF 1% 300 82 1% 82 300 1% 1K 470 1% 43 pF 120 pF 120 120 +5 V ECL SERIAL DATA SOURCE 82 0.1 μF 9 T X V EE 82 8 TD + 5V 7 TD Ð 4.7 μH + 10 μF 6 T X V CC 0.1 μF 0.1 μF 5 R X V CC 82 10 μF 82 + 0.1 μF 4 4.7 μH FIBER-OPTIC TRANSCEIVER SHOWN IN FIGURE 1 3 RD +5 V ECL SERIAL DATA RECEIVER 2 RD 120 120 1 R X V EE 4.7 μH Figure 2. Recommended power supply filter and +5 V ECL signal terminations for the transmitter and receiver application circuit of Figure 1. 200 21 POF OPTICAL POWER BUDGET ÐdB AVERAGE POWER Ð μW 19 150 100 AVERAGE MODULATED POWER 50 AVERAGE POWER, 50% DUTY CYCLE 0 0 20 40 DUTY CYCLE 60 Ð% Figure 3. Average modulated power. 5 80 100 17 15 HCS 13 11 9 10 30 50 70 90 110 130 150 DATA RATE Ð MBd Figure 4. Typical optical power budget vs. data rate. 125 Megabaud Versatile Link Transmitter HFBR-15X7Z Series Description GROUND The HFBR-15X7Z transmitters incorporate a 650 nanometer LED in a horizontal (HFBR-1527Z) or vertical (HFBR-1537Z) gray housing. The HFBR-15X7Z transmitters are suitable for use with current peaking to decrease response time and can be used with HFBR-25X6Z receivers in data links operating at signal rates from 1 to 125 megabaud over 1 mm diameter plastic optical fiber or 200 μm diameter hard clad silica glass optical fiber. Refer to Application Note 1066 for details for recommended interface circuits. Absolute Maximum Ratings Parameter ANODE CATHODE GROUND GROUND 1 2 3 4 GROUND SEE NOTE 6 Symbol Min. Max. Unit Storage Temperature TS -40 85 °C Operating Temperature TO -40 70 °C 260 °C 10 s Lead Soldering Temperature Cycle Time Transmitter High Level Forward Input Current IF,H 120 mA Transmitter Average Forward Input Current IF,AV 60 mA Reverse Input Voltage VR 3 V Reference Note 1, 9 50% Duty Cycle ≥ 1 MHz 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 0 to 70°C, unless otherwise stated. Parameter Symbol Min. Typ.[2] Max. Unit Condition Note Transmitter Output Optical Power, 1 mm POF PT -9.5 -10.4 -7.0 -4.8 -4.3 dBm IF,dc = 20 mA, 25°C 0-70°C Note 3 Transmitter Output Optical Power, 1 mm POF PT -6.0 -6.9 -3.0 -0.5 -0.0 dBm IF,dc = 60 mA, 25°C 0-70°C Note 3 Transmitter Output Optical Power, 200 μm HCS® PT -14.6 -15.5 -13.0 -10.5 -10.0 dBm IF,dc = 60 mA, 25°C 0-70°C Note 3 Output Optical Power Temperature Coefficient ΔPT ΔT Peak Emission Wavelength PK Peak Wavelength Temperature Coefficient Δ ΔT 0.12 nm/°C FWHM 21 nm Full Width, Half Maximum V IF = 60 mA Spectral Width Forward Voltage VF -0.02 640 1.8 650 2.1 dB/°C 660 2.4 nm Forward Voltage Temperature Coefficient ΔVF ΔT -1.8 Transmitter Numerical Aperture NA 0.5 Thermal Resistance, Junction to Case jc 140 °C/W Reverse Input Breakdown Voltage VBR 13 V IF,dc = -10 μA Diode Capacitance CO 60 pF VF = 0 V, f = 1 MHz Unpeaked Optical Rise Time, 10% - 90% tr 12 ns IF = 60 mA f = 100 kHz Figure 1 Note 5 Unpeaked Optical Fall Time, 90% - 10% tf 9 ns IF = 60 mA f = 100 kHz Figure 1 Note 5 3.0 mV/°C 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 0.5 meter of 1 mm diameter plastic or 200 μm diameter hard clad silica optical fiber with a large area detector. 4. Typical value measured from junction to PC board solder joint for horizontal mount package, HFBR-1527Z. jc is approximately 30°C/W higher for vertical mount package, HFBR-1537Z. 5. Optical rise and fall times can be reduced with the appropriate driver circuit; refer to Application Note 1066. 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 and 200 μm HCS 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. Refer to Application Note 1066 for design guidelines. 9. Moisture sensitivity level (MSL) is 3 7 HP8082A PULSE GENERATOR BCP MODEL 300 500 MHz BANDWIDTH SILICON AVALANCHE PHOTODIODE HP54002A 50 OHM BNC INPUT POD 50 OHM LOAD RESISTOR HP54100A OSCILLOSCOPE NORMALIZED SPECTRAL OUTPUT POWER 1.2 0° C 1.0 25° C 0.8 70° C 0.6 0.4 0.2 0 620 630 640 650 660 670 680 WAVELENGTH (nm) Figure 1. Test circuit for measuring unpeaked rise and fall times. Figure 2. Typical spectra normalized to the 25°C peak. 0 PT - NORMALIZED OUTPUT POWER - dB VF - FORWARD VOLTAGE - V 2.4 0° C 2.2 25° C 70° C 2.0 1.8 1.6 1 10 100 IF,DC - TRANSMITTER DRIVE CURRENT (mA) Figure 3. Typical forward voltage vs. drive current. 8 -5 0° C -10 -15 25° C 70° C -20 -25 1 10 100 IF,DC - TRANSMITTER DRIVE CURRENT (mA) Figure 4. Typical normalized output optical power vs. drive current. 125 Megabaud Versatile Link Receiver HFBR-25X6Z Series Description The HFBR-25X6Z receivers contain a PIN photodiode and transimpedance pre-amplifier circuit in a horizontal (HFBR-2526Z) or vertical (HFBR-2536Z) blue housing, and are designed to interface to 1mm diameter plastic optical fiber or 200 μm 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. Refer to Application Note 1066 for details for recommended interface circuits. Absolute Maximum Ratings Parameter GROUND 4 3 2 1 VCC GROUND GROUND SIGNAL GROUND SEE NOTES 2, 4, 9 Symbol Min. Max. Unit Storage Temperature TS -40 +75 °C Operating Temperature TA 0 +70 °C 260 °C Lead Soldering Temperature Cycle Time 10 s 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 0 to 70°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/μW AC Responsivity 200 μm HCS RP,HCS 4.5 7.9 11.5 mV/μW RMS Output Noise 650 nm Note 4 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 -5.8 dBm 5 ns PWD -6.4 dBm 2 ns PWD -8.8 dBm 5 ns PWD -9.4 dBm 2 ns PWD Ω 50 MHz PR = 0 μW Peak Input Optical Power 1 mm POF PR Peak Input Optical Power 200 μm HCS PR Output Impedance ZO DC Output Voltage VO Supply Current ICC Electrical Bandwidth BWE Bandwidth * Rise Time 30 0.8 65 1.8 2.6 V 9 15 mA 125 MHz 0.41 Hz * s Note 6 Note 6 Note 4 -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 PWD 0.4 1.0 ns PR = -10 dBm peak Note 7 % PR = -10 dBm peak Note 8 Pulse Width Distortion 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 Ω 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. Refer to Application Note 1066 for design guidelines. 11. Moisture sensitivity level (MSL) is 4 10 Figure 1. Recommended power supply filter circuit. Figure 2. Simplified receiver schematic. Figure 3. Typical pulse width distortion vs. peak input power. 11 Figure 4. Typical output spectral noise density vs. frequency. Figure 5. Typical rise and fall time vs. temperature. Versatile Link Mechanical Dimensions HORIZONTAL MODULES HFBR-1527Z HFBR-2526Z HORIZONTAL MODULES HFBR-1537Z HFBR-2526Z 2.03 (0.080) 6.86 (0.270) 10.16 (0.400) 18.8 (0.74) 0.64 (0.025) 2.03 (0.080) 5.08 (0.200) 3.81 (0.150) MAX. 3.56 (0.140) MIN. 6.86 (0.27) 4.19 (0.165) 7.62 (0.30) 7.62 (0.300) 5.08 10.16 (0.200) (0.400) 18.80 (0.740) 0.51 (0.020) 1.27 (0.050) 2.54 (0.100) 0.64 (0.025) DIA. 1.85 (0.073) 2.77 (0.109) Versatile Link Printed Circuit Board Layout Dimensions TOP VIEWS HORIZONTAL MODULE 7.62 (0.300) 2.54 (0.100) TOP VIEW VERTICAL MODULE 1.01 (0.040) DIA. 4 3 2 1 5 7.62 (0.300) PCB EDGE 8 1.85 MIN. (0.073) DIMENSIONS IN MILLIMETERS (INCHES). For product information and a complete list of distributors, please go to our website: www.avagotech.com Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies in the United States and other countries. Data subject to change. Copyright © 2005-2012 Avago Technologies. All rights reserved. Obsoletes 5989-4631EN AV02-1502EN - April 11, 2012 18.29 (0.720)