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V23818-C18-L45 Datasheet(PDF) 10 Page - Infineon Technologies AG |
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V23818-C18-L45 Datasheet(HTML) 10 Page - Infineon Technologies AG |
10 / 17 page V23818-C18-Lxx/L4xx Technical Data Data Sheet 10 2003-06-06 Jitter The transceiver is specified to meet the SONET/SDH Jitter performance as outlined in ITU-T G.958 and Telcordia GR-253. Jitter Generation is defined as the amount of jitter that is generated by the transceiver. The Jitter Generation specifications are referenced to the optical OC-3 signals. If no or minimum jitter is applied to the electrical inputs of the transmitter, then Jitter Generation can simply be defined as the amount of jitter on the Tx optical output. The SONET specifications for Jitter Generation are 0.01 UI RMS, maximum and 0.1 UI pk-pk, maximum. For SDH, 10 mUI RMS, maximum. Both are measured with a 12 kHz - 1.3 MHz filter in line. A UI is a Unit Interval, which is equivalent to one bit slot. At OC-3, the bit slot is 6.4 ns, so the Jitter Generation specification translates to 64 ps RMS, max. and 640 ps pk-pk, max. Transmitter Electro-Optical Characteristics Transmitter Symbol Limit Values Unit min. typ. max. Output Power (Average) 1) P O –15 –8 dBm Center Wavelength λ C 1260 1360 nm Spectral Width (FWHM) D l 7.7 nm Extinction Ratio (Dynamic) ER 8.2 dB Output Rise Time t R 0.6 2.5 ns Output Fall Time t F 0.6 3 ns Reset Threshold for V CCt 2) V TH 2.7 V Power on Delay 2) t RES 30 ms Eye Diagram 3) ED ITU-T G.957 mask pattern Jitter Generation J GEpk-pk 0.1 UI J GERMS 0.01 UI T Dis Assert Voltage LVTTL V TDH 2V T Dis Deassert Voltage LVTTL V TDL 0.8 V T Dis Assert Time 4) t ASS 0.4 1 ms T Dis Deassert Time 5) t DAS 0.06 10 µs 1) Into single mode fiber, 9 µm diameter. 2) Laser power is shut down if power supply is below V TH and switched on if power supply is above VTH after tRES. 3) Transmitter meets ANSI T1E1.2, SONET OC-3, and ITU-T G.957 mask patterns. 4) T Dis assertion to laser shutdown. 5) T Dis reassertion to laser startup. |
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