AFBR-2528CZ

AFBR-1528CZ and AFBR-2528CZ DC to 10-MBd Versatile Link Fiber Optic Analog Transmitter and Digital Receiver for 1-mm POF and 200-μm PCS Data Sheet Description Features The AFBR-1528CZ analog transmitter utilizes a 650-nm LED source, and the AFBR-2528CZ receiver consists of an IC with an integrated photodiode providing a TTL logic family compatible output.  AFBR-2528CZ devices have inverted output signals, which means that light_on leads to Data_out low.  A link with AFBR-1528CZ and AFBR-2528CZ enables operating temperatures up to +95 °C. The transmitter and receiver are 4-pin devices, packed in Versatile Link housings. Versatile Link components can be interlocked (N-plexed together) to minimize space and to provide dual connections with the duplex connectors. Various simplex and duplex connectors, as well as POF cables, are available for Versatile Link components. Horizontal Package   The transmitter and receiver housing is designed to efficiently couple into 1-mm Polymer Optical Fiber (POF) and 200-μm diameter Plastic-Clad Silica (PCS). Links up to 58 m are supported with 1-mm POF, and up to 500 m with 200-μm PCS. Available Transmitter Option:  Applications          AFBR-1528CZ Available Receiver Option: Horizontal Package RoHS-compliant Data transmission at signal rates from DC up to 10 MBd Up to 58 meters distance with 1-mm Polymer Optical Fiber (POF) and up to 500 meters with 200-μm PCS Operating temperature range of –40 °C to +95 °C Compatible with the Avago Technologies Versatile Link family of connectors, for easy termination of fiber AFBR-2528CZ Broadcom -1- Industrial control and factory automation Optical transmitter and receiver for 10-MBd systems and below Serial field buses Intra-system links; board-to-board, rack-to-rack Extension of RS-232 and RS-485 High voltage isolation Elimination of ground loops Reduces voltage transient susceptibility Drivers and inverters AFBR-1528CZ and AFBR-2528CZ Data Sheet Application Literature Application Literature Handling Application Note 1035 (Versatile Link), AV02-0730EN. Versatile Link components are auto-insertable. When wave soldering is performed with Versatile Link components, the optical port plug should be left in to prevent contamination of the port. Do not use reflow solder processes (i.e., infrared reflow or vapor-phase reflow). Non-halogenated water soluble fluxes (i.e., 0% chloride), not rosin based fluxes, are recommended for use with Versatile Link components. Package and Handling Information The compact Versatile Link package is made of a flame retardant material and uses the same pad layout as a standard, eight-pin dual-in-line package. Horizontal packages are available. These low-profile Versatile Link packages are stackable and are enclosed to provide a dust-resistant seal. Snap action simplex, simplex latching, duplex, and duplex latching connectors are offered with simplex or duplex cables. Versatile Link components are moisture-sensitive devices and are shipped in a moisture sealed bag. If the components are exposed to air for an extended period of time, they may require a baking step before the soldering process. Refer to the special labeling on the shipping tube for details. Package Housing Color Versatile Link components and simplex connectors are color coded to eliminate confusion when making connections. Receiver packages are black, and transmitters are grey. Recommended Chemicals for Cleaning/Degreasing Alcohols: methyl, isopropyl, isobutyl. Aliphatics: hexane, heptanes. Other: soap solution, naphtha. Do not use partially halogenated hydrocarbons such as 1,1.1 trichloroethane, ketones such as MEK, acetone, chloroform, ethyl acetate, methylene dichloride, phenol, methylene chloride, or N-methylpyrolldone. Broadcom does not recommend the use of cleaners that use halogenated hydrocarbons because of their potential environmental harm. Broadcom -2- AFBR-1528CZ and AFBR-2528CZ Data Sheet Interlocked (Stacked) Assemblies Interlocked (Stacked) Assemblies Mechanical Dimensions Refer to Figure 1. Figure 2 Mechanical Dimensions - Horizontal Packages 6.5 [0.26] 10.2 [0.40] 2 [0.08] Horizontal packages can be stacked by placing units with pins facing upward. Initially engage the interlocking mechanism by sliding the L bracket body from above into the L slot body of the lower package. Use a straight edge, such as a ruler, to bring all stacked units into uniform alignment. This technique prevents potential harm that could occur to fingers and hands of assemblers from the package pins. Stacked horizontal packages can be disengaged if necessary. Repeated stacking and unstacking causes no damage to individual units. 18.8 [0.74] 5.1 [0.20] 4.2 [0.17] 3.6[0.14]MIN. 3.8[0.15]MAX. 0.6 [0.03] 7.6 [0.30] Figure 1 Interlocked (Stacked) Horizontal Packages 7.7 [0.30] .6 ‡ 0 3] 0.0 [‡ 1.3 [0.05] 0.5 [0.02] NOTES: 1) Dimensions: mm [in] 1.7 [0.07] 2.8 [0.11] Versatile Link Printed Board Layout Dimensions Figure 3 PCB Dimensions - Horizontal Packages 7.62 [0.300] 2.54 [0.100] ‡1 ] 4 0.0 [‡ 3 2 1 7.7 [0.30] 4 5 8 PCB EDGE 1.9 MIN. [0.07] NOTES: 1) Dimensions: mm [in] Footprint - TOP VIEW Broadcom -3- 2.54 [0.100] AFBR-1528CZ and AFBR-2528CZ Data Sheet Regulatory Compliance (AFBR-1528CZ/AFBR-2528CZ) Regulatory Compliance (AFBR-1528CZ/AFBR-2528CZ) Feature Test Method Performance Electrostatic Discharge (ESD) to the Electrical Pins Human Body Model MIL-STD-883 Method 3015 Min ± 2000 V Eye Safetya IEC 60825-1,2,Class 1 Class 1 a. Valid for optical transmitter AFBR-1528CZ only. Process Compatibility (AFBR-1528CZ/AFBR-2528CZ) Parameter Solder Environmenta, b Symbol Min Typical Max Unit TSOLD — — 260c °C tSOLD — — 10d sec a. Solder surface to be at least 1.6 mm below lead frame stops. b. Product is Moisture Sensitive Level 3. c. Maximum temperature refers to peak temperature. d. Maximum time refers to time spent at peak temperature. 10-MBd Link Performance (AFBR-1528CZ/AFBR-2528CZ) The optical link performance for operating temperatures up to +95 °C is guaranteed only with transmitter AFBR-1528CZ (>20 mA forward peak current). Parameter Min Max Unit Condition Link Distance with Extra Low Loss POF Cablea 0.1 58 m –40 °C to +95 °C Link Distance with 200 μm PCS Cableb 0.1 500 m –40 °C to +95 °C a. Plastic Optical Fiber (POF) is AFBR-HUXYYYZ or HFBR-EXXYYYZ for operating temperatures up to +85 °C. Worst-case fiber attenuation (0.23 dB/m at 650 nm) used for distance calculation. b. Plastic-Clad Silica Fiber (PCS). A worst-case attenuation of 12 dB/km (at 650 nm) used for distance calculation. Pin Description Transmitter AFBR-1528CZ Fiber port facing front, pins downward, 1 = Rightmost pin to 4 = Leftmost pin. Pin a. Name Function/Description 1 Anode LED anode. 2 Cathode LED cathode. 3 Pin No function, physical pin available, recommended to signal GND. 4 Pin No function, physical pin available, recommended to signal GND. 5 Housing Pina Physical pin available, recommended to chassis GND. 8 Housing Pina Physical pin available, recommended to chassis GND. Pins 5 and 8 are for mounting and retaining purposes. Make sure they are electrically connected to Chassis GND. Broadcom -4- AFBR-1528CZ and AFBR-2528CZ Data Sheet NOTE Pin Description Transmitter AFBR-1528CZ This is an inverting circuitry; thus, the LED is off in case of DATA H. Therefore, an inverting receiver, e.g., AFBR-2528CZ, should be used accordingly. Figure 4 Recommended Drive Circuit Vcc=5.0V C1 C2 R1 R3 C3 GND 9 10 1 Input R2 2 U1 3 13 12 5 4 14 U1 8 U1 11 U1 6 AFBR-1528CZ 1 2 7 U1 (= CD74ACT08M) GND Note: IF,on = 30 mA nominal at TA = 25 °C; VCC = 5.0 V. Value Tolerance R1 2 kΩ 5% R2 100 Ω 1% R3 15 Ω 1% C1 0.1 μF 20% C2 10 μF 20% C3 120 pF 5% Broadcom -5- AFBR-1528CZ and AFBR-2528CZ Data Sheet Pin Description Receiver AFBR-2528CZ Pin Description Receiver AFBR-2528CZ Fiber port facing front, pins downward, 1 = Rightmost pin to 4 = Leftmost pin. Pin Name Function/Description 1 Data Outa, b Data output. 2 VEE Ground. 3 VCC Power Supply 3.3 V ± 5% or 5 V ± 5%. 4 Pinc No function, physical pin is available, recommended to signal GND. 5 Housing Pind Physical pin is available, recommended to chassis GND. 8 Housing Pind Physical pin is available, recommended to chassis GND. a. TTL compatible data output. b. Light on at the receiver input will lead to a "low" output signal and light off to a "high" output signal. c. It is recommended to connect this pin to signal GND. d. Pin 5 and 8 are for mounting and retaining purposes and should be connected to chassis GND. Recommended Application Circuit Gnd 5 GND 8 Gnd RX GND NC VCC VEE Data Out L2 4 VCC 1 PH 3 C4 100 nF 2 C2 10 PF C6 10 PF 1 GND GND GND GND TTL Output Broadcom -6- AFBR-1528CZ and AFBR-2528CZ Data Sheet AFBR-1528CZ Analog Transmitter AFBR-1528CZ Analog Transmitter The AFBR-1528CZ analog transmitter utilizes a 650-nm LED source in a housing designed to efficiently couple into 1-mm Polymer Optical Fiber (POF) or 200-μm Plastic-Clad Silica (PCS). Links up to 58 meters are supported with 1-mm POF. Links up to 500 meters are supported with 200-μm PCS. Absolute Maximum Ratings (AFBR-1528CZ) Parameter Symbol Min Max Unit Storage and Operating Temperature TS,O –40 95 °C Transmitter Peaking Forward Input Currenta IF,PK — 45 mA IF, PKshort — 80 mA IF,AVG — 30 mA VR — 3 V Transmitter Short Term Peaking Forward Input Currentb Transmitter Average Forward Input Current Transmitter Reverse Input Voltage a. For IF,PK > 30 mA, the duty factor must maintain ≤30 mA IF,AVG and pulse width ≤1 μs. b. Maximum short-term peaking forward current must not longer be applied than 5 ns to improve rise time or enhance signaling rate. Applying a short-term peaking forward current shall not result in exceeding 30 mA average forward current. Recommended Operating Conditions (AFBR-1528CZ) Parameter Ambient Temperaturea, b Transmitter Average Forward Input Currenta Signaling Ratea, c Symbol Min Max Unit TA –40 95 °C IF,AVG 3 30 mA fs DC 10 MBd a. Recommended operating conditions are those values outside of which functional performance is not intended, device reliability is not implied, and damage to the device may occur over an extended period of time. See Reliability Data Sheet for specific reliability performance. b. Measured at the housing. c. Using driver circuit Figure 4 (without peaking and clamping of the electrical input signal). Broadcom -7- AFBR-1528CZ and AFBR-2528CZ Data Sheet Electrical and Optical Characteristics (AFBR-1528CZ) Electrical and Optical Characteristics (AFBR-1528CZ) TA = –40 °C to +95 °C unless otherwise stated. Parameter Symbol Min Typical Max Unit Conditions Notes Peak Output Power, 1 mm POF, 30 mA PT –6 –1 2 dBm IF,DC = 30 mA a, b, c Peak Output Power, 200 m PCS, 30 mA PT –18 –12 –9 dBm IF,DC = 30 mA a, b, c Peak Output Power, 1 mm POF, 10 mA PT –11 –6 –3 dBm IF,DC = 10 mA a, b, c Peak Output Power, 1 mm POF, 5 mA PT –14 –9 –6 dBm IF,DC = 5 mA a, b, c Peak Output Power, 1 mm POF, 3 mA PT –16 –11 –8 dBm IF,DC = 3 mA a, b, c ΔPT/ΔT — –0.01 — dB/K –40 °C to +25 °C c — –0.02 — dB/K +25 °C to +95 °C c λP 630 650 685 nm — c Peak Emission Wavelength Temperature Coefficient Δλ/ΔT — 0.16 — nm/K — c Spectral Width FWHM — 20 — nm — c VF 1.4 — 2.3 V IF,DC = 3 mA to 30 mA ΔVF/ΔT — –2.8 — mV/K –40 °C to +25 °C c — –1.1 — mV/K +25 °C to +95 °C c Optical Power Temperature Coefficient Peak Emission Wavelength Forward Voltage Forward Voltage Temperature Coefficient IF,DC = 30 mA Reverse Input Breakdown Voltage — 9 20 — V — c Diode Capacitance — — 30 70 pF — c Optical Rise Time (20% to 80%) tr — 3 20 ns — c, d Optical Fall Time (80% to 20%) tf — 3 20 ns — c, d a. Optical power measured with polished connector end face at the end of 0.5 meters of 1-mm diameter POF with a numerical aperture (NA) of 0.5, or of 200-μm diameter PCS, with NA = 0.37. b. Minimum average output power specification value includes 1-dB degradation margin. c. Typical values are mean values measured at TA = 25 °C. d. Using drive circuit in Figure 4 for IF,DC = 30 mA; VCC = 5.0 V. Broadcom -8- AFBR-1528CZ and AFBR-2528CZ Data Sheet AFBR-2528CZ Receiver Figure 5 Typical Forward Voltage vs. Drive Current Figure 6 Typical Optical Output Power, 1mm POF vs. Drive Current AFBR-2528CZ Receiver The AFBR-2528CZ receiver consists of a digitalizing IC with integrated photodiode to produce an output level that is compatible with TTL logic. The integrated photodiode and the following amplifier use a fully differential approach with an active and a passive area for an improved EMI performance. Within the specified ranges, the AFBR-2528CZ devices support a BER