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TSE-0155-32S-P1-3 Datasheet(PDF) 7 Page - List of Unclassifed Manufacturers |
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TSE-0155-32S-P1-3 Datasheet(HTML) 7 Page - List of Unclassifed Manufacturers |
7 / 10 page TX-1310/RX-1550 nm Single-mode Bi-directional (Single-Fiber)Transceiver 2 ×5 SC Simplex Connector, 3.3 V (17dB Margin) 155 Mbps ATM/SONET OC-3/SDH STM-1 Headquarters : No. 669, Sec. 4 Chung Hsing Road Chudung, HsinChu, Taiwan 310, ROC Tel: +886-3-582-8270 Fax: +886-3-582-8416 Revision : 4.5 7/10 Date : 2003/02/17 http:// www.ritekom.com Recommended Circuit Schematic DC/DC Coupling 1 5 4 3 2 6 9 10 7 RX GND RD+ RD − SD V CCR TD − TD+ TX GND C2 L2 V CC RiteKom Transceiver TD+ C1 L1 TD − V CC RD+ RD − C3 Laser Driver LIMITING Amplifier Signal detect Pre- Amp V CCT ECL/PECL DRIVER Serializer/ Deserializer Receiver PLL etc. C4 8 TXDIS C1/C2/C4 = 0.1 µF C3 = 4.7 µF L1/L2 = 1 µH R1/R3/R5/R7/R9 = 130 Ω R2/R4/R6/R8/R10 = 82 Ω In order to get proper functionality, a recommended circuit is provided in above recommended circuit schematic. When designing the circuit interface, there are a few fundamental guidelines to follow. (1) The differential data lines should be treated as 50 Ω Micro strip or strip line transmission lines. This will help to minimize the parasitic inductance and capacitance effects. Locate termination at the received signal end of the transmission line. The length of these lines should be kept short and of equal length. (2) For the high speed signal lines, differential signals should be used, not single-ended signals, and these differential signals need to be loaded symmetrically to prevent unbalanced currents which will cause distortion in the signal. (3) Multi layer plane PCB is best for distribution of VCC, returning ground currents, forming transmission lines and shielding, Also, it is important to suppress noise from influencing the fiber-optic transceiver performance, especially the receiver circuit. (4) A separate proper power supply filter circuits shown in Figure for the transmitter and receiver sections. These filter circuits suppress VCC noise over a broad frequency range, this prevents receiver sensitivity degradation due to VCC noise. (5) Surface-mount components are recommended. Use ceramic bypass capacitors for the 0.1 µF capacitors and a surface-mount coil inductor for 1 µH inductor. Ferrite beads can be used to replace the coil inductors when using quieter VCC supplies, but a coil inductor is recommended over a ferrite bead. All power supply components need to be placed physically next to the VCC pins of the receiver and transmitter. (6) Use a good, uniform ground plane with a minimum number of holes to provide a low-inductance ground current return for the power supply currents. |
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