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The HFBR-0400 series components are designed to provide cost-effective high performance fiber optic communication links for information systems and industrial applications with link distances up to 2.7 km. Using the HFBR-24x6, 125 MHz analog receiver, data rates up to 160 Mbaud are achievable. The transmitter and receiver are directly compatible with popular "industry standard" connectors: ST, SMA, SC and FC. They are fully specified for a variety of fiber sizes; including 50/125 microns, 62.5/125 microns, 100/140 microns and 200 microns. The HFBR-14x4 High Power Transmitter and HFBR-24x6 125MHz Receiver are paired to provide a 100-base SX. 100Base SX is the Fast Ethernet standard (100 at 850nm multimode fiber. A complete evaluation kit includes products available for ST products; including transmitters, receivers, connecting cables, and technical literature. In addition, ST connecting cables are available for evaluation.

application

850 Based 100Base SX Fast Ethernet Nano Media/Fiber Conversion, Switches, Routers, Hubs and Network Cards 100Base SX LAN

Computer to Peripheral Connections

computer monitoring link

digital cross-connect

Central Office Switch/PBX Link

video link

Modems and Multiplexers

Suitable for Tempest system

industrial control

feature

Compliant with IEEE802.3 Ethernet and 802.5 Token Ring Compliant with TIA/EIA-785 100Base SX Compliant Low-Cost Transmitter and Receiver Choice of ST, SMA, SC or FC Port 820nm Wavelength Technology Signal Rate Up to 160mbd Connection Distance Up to 2.7km Specified as 50/125µm, 62.5/125µm, 100/140µm and 200µm HCS® Fiber Internal Repeatable ST Connection Wide operating temperature range -40°C to +85°C AlGaAs emitter 100% burn-in ensures high reliability conductive port option

HFBR-0400 Series Evaluation Kit; HFBR-0410 ST Evaluation Kit; Contains the following: One HFBR-1412 Transmitter One HFBR-2412 5Mbaud TTL Receiver St. Trim Connector 62.5/125 Low Cost Fiber Optic Cable; Plastic ferrule.

Related Literature

The HFBR-0414 ST Evaluation Kit includes additional components. Interface with transmitters and receivers and printed circuit boards; to reduce design time. Include. The following: One HFBR-1414T transmitter One HFBR-2416T receiver Holy three meter connector 62.5/125 fiber optic cable; PCB CP data quantizer 74 Actllon LED driver LT1016CN8 comparator 4.7.H sensor related literature HFBR- 0400 SMA Evaluation Kit, contains the following: One HFBR-1402 Transmitter One HFBR-240 25 Mbaud TTL Receiver Two Meters SMA Connectors 1000 Meters of Plastic Optical Fiber Related Literature The HFBR-0416 Evaluation Kit contains the following: One fully assembled The 1x9155 Transceiver Board MBd Evaluation includes: HFBR-1414 Transmitter HFBR-2416 Receiver Circuit Related Literature Packaging and Handling Information Packet Information Packaging strength, heat resistance, chemical resistance, and UL94V-O flame retardant ULTEM plastic made with advanced materials (UL File 35; E121562). This transmitter is easily identifiable by the light grey port. The receiver is easily identified by the dark grey connector port. black for conductive ports). The package is also designed for automatic insertion and wave soldering, so it is ideal for high volume production

application

Handling and Design Information Each part has a protective port cover or plug covering the optical system. These cap plugs will vary by port type. When soldering, it is recommended to wear a protective cap to keep the optics clean. Good system performance requires clean port optics and cable ferrules for escape blocking the light path. Clean compressed air is sufficient to remove particulate dirt; methanol on a cotton swab is also effective.

Options

In addition to the individual ports available for the HFBR style-0400 series, there are several additional options that can be ordered. To order an option, simply place the corresponding option number at the end of the part number. Option T (threaded port option) allows ST style port panel assembly installation. Compatible with all current ST® Multimode Manufacturing Connectors Mechanical Dimensions are MIL-STD-83522/No. 13 Maximum Wall Thickness 2.8 mm (0.11 in) from HFBR-4411 Hardware Kit when using Nut and Washer Options Available on All ST Ports C (Conductive Port Receiver Option) Designed to withstand Electrostatic Discharge (ESD) 25 kV to port Significantly reduces Electromagnetic Interference (EMI) receiver sensitivity Allows designers to separate signal and conductive port Rationale: Recommended for noisy environments over SMA and threaded ST port style Receiver only option M (metal port option) Nickel-plated aluminum connector socket designed to withstand electrostatic discharge (ESD) 15 kV to port Significantly reduces electromagnetic interference (EMI) receiver sensitivity Allows designers to isolate Signal and metal port grounds Recommended for noisy environments on SMA, ST and threaded ST ports

HFBR-0400 Series Description

Follow-up technical data is from 4 popular links The HFBR-0400 series: The 5 Ethernet. Boxing Ring 32 MBD Link Transceiver Corresponding Solution Combination 0400 Series Components and Various Recommended Transceiver Design Circuits Offshore Electrical Components This data refers to this example Typical link performance Givenchy design and does not call Out any link limitations. Please refer to Contact the appropriate application note for more information.

5 MBd link (HFBR-14xx/24x2) link performance -40 C to +85 C unless otherwise specified

notes:

1. TA = OPB at -40 to +85°C, VCC = 5.0 V dc, if turned on = 60 mA. PR=-24 dBm peak.

2.3 Synchronous data rate limits are based on the following assumptions: a) 50% duty cycle modulation such as Manchester I or two-phase Manchester II; b) continuous data; c) PLL demodulation; d) TTL threshold.

3. The asynchronous data rate limit is based on the following assumptions: a) NRZ data; b) no duty cycle limit for arbitrary timing; c) TTL threshold.

5 MBd Logic Link Design If resistor R1 in Figure 2 is 70.4W, 48mA forward current is suitable for the HFBR-14x4LED transmitter. Setting the HFBR-14x4/24x2 logic to mAlink at IF=48 guarantees 0 to 1750 meters with 62.5/125 micron fiber optic cable, data rates from DC to 5 MBd, and typically less than 25% distortion in any data format and pulse width. By setting R 1=115w the transmitter can use IF=30mA, if needed to save power or to reduce pulse distortion. The following example will illustrate the selection of appropriate values for IF and R1. Maximum distance required = 400 meters. From Figure 3 it can be seen that the drive current should be 15mA. The data from the transmitter is 1.5 volts (max) at VF=IF=15mA as shown in Figure 9.

The curves in Figures 3, 4 and 5 assume no inline splicing or any additional system loss. If the link consists of any series junctions, these curves can still be used to calculate the additional system loss decibels provided that the link limits them from being represented. For example, Figure 3 shows a 48 mA transmitter drive current, a 1.75 km link distance is achievable using a 62.5/125 micron fiber with a maximum attenuation of 4 dB/km. With an additional 2dB system loss, a 1.25km link distance is still achievable.

Ethernet 20 MBd link (HFBR-14x4/24x6) typical link performance

notes:

1. Typical data at TA=+25°C, VCC=5.0 V dc.

2. Typical performance of the circuits shown in Figures 1 and 3 of AN-1038 (see Application Support section). Token Ring 32 MBd link (HFBR-14x4/24x6)

notes:

1. Typical data at TA=+25°C, VCC=5.0 V dc.

2. Typical performance of the circuit shown in Figure 1 and Figure 3 of AN-1065 (see Application Support section)

HFBR-14x2/14x4 Low Cost High-Speed Transmitters

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The HFBR-14xx fiber optic transmitters contain 820 nm optical fibers capable of efficiently transmitting optics in four different optical power sizes: 50/125 mm, 62.5/125 mm, 100/140 mm and 200 mm HCS. This allows the designer to choose the amount of flexibility in the fiber. The HFBR-14xx is designed to use Agilent HFBR-24xx fiber optic receivers. HFBR-14xx transmitters allow high coupling efficiency with low drive transmitter current levels for low power consumption and improved transmitters. The HFBR-14x4 High Power Transmitter is optimized for small size fibers and can typically transmit -15.860 mAh dBm optical power to 50/125 m fiber and -12dBm to 62.5/125 m fiber. This HFBR-14x2 standard transmitter can typically transmit 12 dBm optical power at -60 mA in 100/140 m fiber optic cable. Ideal for large fiber sizes such as 100/140 m. High emission optical power stages create large fixed losses for system couplers, splices or inline connectors suitable for stars. Consistent coupling efficiency is guaranteed for dual-lens optical systems (Figure 1). that power. Any of the three fiber types varies by less than 5 dB in current and temperature from one part to another on a given driver. Consistent coupling efficiency narrows what the receiver dynamic range allows: longer connection lengths.

Electrical/Optical Specifications -40°C to +85°C unless otherwise specified.

notes:

1. When I FPK > 100 mA, the duration should not exceed 2 ns.

2. Typical data at TA=+25°C.

3. Thermal resistance is measured by coupling the transmitter to the connector assembly and mounting it on a printed circuit board.

4.D is measured in the plane of the fiber surface and defines a diameter where the optical power density is within 10db of the maximum value.

5.PT is measured with a large area detector at the end of a stripped cable in 1 meter mode with an ST® Precision Ceramic Ferrule (MILSTD-83522/13) for HFBR-1412/1414 and with a for HFBR- SMA 905 precision ceramic ferrules for 1402/1404.

6. When changing mW to dBm, the optical power reference is 1 mW (1000 mW). Optical power P (dBm) = 10 logarithmic P (mW) / 1000 mW.

7. If the signal rate is >10 MBd, it is recommended to use pre-bias, see the recommended driver circuit in Figure 11.

8. Pins 2, 6 and 7 are soldered to the anode header connections to minimize thermal resistance to ambient. To further reduce thermal resistance, anode traces should be as large as possible to comply with good RF circuit design.

9. Fiber NA was measured at the end of a 2-meter mode-stripped fiber, using the far-field mode. NA is defined as 5% of the sinusoidal peak intensity point of the half angle. When using cables from other manufacturers, results will vary due to different NA values and specifications

The recommended driver circuit used to power the circuit to the LED emitter current can significantly affect the optical switching characteristics of the LED. Optical rise and fall times and propagation delays can be determined by using appropriate circuit techniques. The LED driver circuit shown in the figure uses the frequency to reduce the typical rise/fall time of the LED. A small pre-bias minimizes the difference in propagation delay caused by pulse-width distortion. The circuit will typically produce rise/fall times of 3 ns, total jitter including pulse width distortion less than 1 ns. This circuit is recommended for applications requiring low edge jitter or high - data transfer speed signal rates up to 155mbd. The value of this component circuit can be calculated for different LED drive currents using the equation shown below.

HFBR-24x2 Low Cost 5 MBd Receiver

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The HFBR-24x2 fiber optic receivers are designed to operate using Agilent HFBR-14xx fiber optic transmitters and 50/125 m, 62.5/125 mm, 100/140 mm and 200 mm HCS fiber optic cables. Coupling coincides into the receiver lens optical system (Figure 1). The replies to the note varied by 0.100 mm with fiber size. The HFBR-24x2 receiver embeds an integrated photo of the integrated circuit containing the photodetector and driving the open collector Schottky output transistor. The HFBR-24x2 is designed for direct connection to popular logic families. This lack of internal pull-up resistors allows for open circuits - and the use of collector output logic families such as CMOS requires voltage offsets well above V CC. The two open collector "Data" output pins 6 and V CC pin 2 are referenced to "Com" pins 3, 7. The "data" output allows busing, travel and wiring "OR" circuit configurations. The transmitter is designed to operate from a single supply +5 V. It is necessary to bypass the capacitor (0.1 microvolt ceramic) through pin 2 (V CC) to pin 3 (circuit) (common) of the receiver.

Electrical/Optical Properties -40°C to +85°C, unless otherwise specified Core diameter ≤ 100 μm, NA ≤ 0.35, 4.75 V ≤ V CC ≤ 5.25 V fiber size

Dynamic characteristics

-40°C to +85°C unless otherwise specified; 4.75 V≤V CC≤5.25 V; BER≤10-9

notes:

1. 2.0 mm from the wire entering the housing.

2.8mA load (5 x 1.6mA), RL=560W.

3. Typical data at TA=+25°C, VCC=5.0 Vdc.

4. D is the effective diameter of the detector image at the plane of the fiber surface. The value is the product of the actual detector diameter and the lens magnification.

5. Measured with a large area detector at the end of a 100/140 mm fiber optic cable.

6. The propagation delay through the system is the result of several phenomena that occur in succession. So it is a combination of data rate - limiting effect and transit time effect. Therefore, the time difference must be used to describe the data rate limit of the system between the delay of the falling edge and the rising edge.

7. As the cable length increases, the propagation delay increases by 5ns per meter of length. Data rates limited by pulse width distortion are affected by increased cable length if the optical power level at the receiver remains the same.