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CA16B2FNN Datasheet(PDF) 3 Page - Agere Systems |
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CA16B2FNN Datasheet(HTML) 3 Page - Agere Systems |
3 / 30 page 3 Agere Systems Inc. Advance Data Sheet CA16-Type 2.5 Gbits/s DWDM Transponder with March 2001 16-Channel 155 Mbits/s Multiplexer/Demultiplexer Description (continued) Figure 1 shows a simplified block diagram of the CA16- Type transponder. This device is a bidirectional module designed to provide a SONET or SDH compliant elec- tro-optical interface between the SONET/SDH photonic physical layer and the electrical section layer. The mod- ule contains a wavelength-tunable (two channels at 100 GHz) 2.5 Gbits/s optical transmitter and a 2.5 Gbits/s optical receiver in the same physical pack- age along with the electronics necessary to multiplex and demultiplex sixteen 155 Mbits/s electrical channels. Clock synthesis, clock recovery, and SONET/SDH frame detection circuits are also included within the module. In the transmit direction, the transponder module multi- plexes sixteen 155 Mbits/s PECL electrical data signals into an optical signal at 2488.32 Mbits/s for launching into optical fiber. An internal 2.488 GHz reference oscil- lator is phase-locked to an external 155.52 MHz data timing reference. The optical transmitter is available at any ITU grid wavelength with a 1.55 µm cooled DFB laser for long- reach applications. The optical output signal is SONET and ITU compliant for OC-48/STM-16 applications as shown in Table 4, OC-48/STM-16Transmitter Optical Characteristics. In the receive direction, the transponder module receives a 2488.32 Mbits/s optical signal and converts it to an electrical signal, and then extracts a clock sig- nal and demultiplexes the data into sixteen 155 Mbits/s differential LVPECL data signals. When enabled, the module can also detect SONET/SDH frame bound- aries. The optical receiver is available with an APD photodetector. The receiver operates over the wave- length range of 1.1 µm to 1.6 µm and is fully compliant to SONET/SDH OC-48/STM-16 physical layer specifi- cations as shown in Table 5, OC-48/STM-16 Receiver Optical Characteristics. Absolute Maximum Ratings Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are abso- lute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect reliability. 1. Human body model. Parameter Symbol Min Max Unit Operating Case Temperature Range TC 075 °C Storage Case Temperature Range TS –40 85 °C Supply Voltage — –0.5 5.5 V Voltage on Any LVPECL Pin — 0 VCC — High-speed LVPECL Output Source Current — — 50 mA Static Discharge Voltage1 ESD — 500 V Relative Humidity (noncondensing) RH — 85 % Receiver Optical Input Power—Biased APD PIN —0 dBm Minimum Fiber Bend Radius — 1.25 (31.8) — in. (mm) |
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