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HFBR-5106 Datasheet(PDF) 5 Page - Agilent(Hewlett-Packard) |
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HFBR-5106 Datasheet(HTML) 5 Page - Agilent(Hewlett-Packard) |
5 / 15 page 154 4.0 14 0 FIBER OPTIC CABLE LENGTH (km) 0.5 1.5 2.0 2.5 12 10 8 6 4 3.5 2 1.0 3.0 0.15 HFBR-5106, 62.5/125 µm HFBR-5106, 50/125 µm HFBR-5107, 50/125 µm HFBR-5107, 62.5/125 µm Figure 4. Optical Power Budget at BOL vs. Fiber Optic Cable Length. normally associated with these technologies in the industry. The Industry convention is 3 dB aging for 800 nm and 1.5 dB for 1300 nm LEDs. The HP LEDs will normally experience less than 1 dB of aging over normal com- mercial equipment mission life periods. Contact your Hewlett-Packard sales repre- sentatives for additional details. Figure 4 was generated with a Hewlett-Packard fiber optic link module containing the current industry conventions for fiber cable specifications and the 100VG-AnyLAN Optical Param- eters. These parameters are reflected in the guaranteed performance of the transceiver specifications in this data sheet. This same model has been used extensively in the ANSI X3T and IEEE committees, including the ANSI X3T12 committee, to establish the optical performance requirements for various fiber optic interface standards. The cable parameters used come from the ISO/IEC JTCI/SC 25/WG3 Generic Cabling for Customer Premises per DIS 11801 document and the EIA/TIA568-A Commercial Building Telecom- munications Cabling Standard per SP-2840. Transceiver Signaling Operating Rate Range and BER Performance For purposes of definition, the symbol (Baud) rate, also called signaling rate, is the reciprocal of the shortest symbol time. Data rate (bits/sec) is the symbol rate divided by the encoding factor used to encode the data (symbols/bit). When used in 100VG AnyLAN 100 Mbps applications, the performance of the 1300 nm transceiver is guaranteed over the signaling rate of 10 MBd to 120 MBd to the full conditions listed in the individual product specification tables. The transceivers may be used for other applications at signaling rates outside of the 10 MBd to 120 MBd range with some penalty in the link optical power budget primarily caused by a reduction of receiver sensitivity. Figure 5 gives an indication of the typical performance of these 1300 nm products at different rates. These transceivers can also be used for applications which require different Bit Error Rate (BER) performance. Figure 6 illustrates the typical trade-off between link BER and the receivers input optical power level. Table 1 lists the hub control signals defined in IEEE 802.12, section 18.5.4.1. These signal rates are below 10 MBd but they are transported with adequate accuracy for hub access control. Transceiver Jitter Performance The Hewlett-Packard 1300 nm transceivers are designed to operate per the system interface jitter specifications listed in Table 27 of section 18.9. of the IEEE 802.12 (100VG-AnyLAN standards). Figure 5. Transceiver Relative Optical Power Budget at Constant BER vs. Signaling Rate. Figure 6. Bit Error Rate vs. Relative Receiver Input Optical Power. 0 200 3.0 0 SIGNAL RATE (MBd) 25 75 100 125 2.5 2.0 1.5 1.0 175 0.5 50 150 CONDITIONS: 1. PRBS 27-1 2. DATA SAMPLED AT CENTER OF DATA SYMBOL. 3. BER = 10-6 4. TA = 25° C 5. VCC = 5 Vdc 6. INPUT OPTICAL RISE/FALL TIMES = 1.0/2.1 ns. -6 4 1 x 10-2 RELATIVE INPUT OPTICAL POWER – dB -4 2 -2 0 1 x 10-4 1 x 10-6 1 x 10-8 2.5 x 10-10 1 x 10-11 HFBR-510X CONDITIONS: 1. 125 MBd 2. PRBS 27-1 3. CENTER OF SYMBOL SAMPLING. 4. TA = 25° C 5. VCC = 5 Vdc 6. INPUT OPTICAL RISE/FALL TIMES = 1.0/2.1 ns. CENTER OF SYMBOL 1 x 10-12 1 x 10-7 1 x 10-5 1 x 10-3 |
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