V23814-K1306-M136

PAROLI is a parallel optical link for high-speed data transmission. A complete PAROLI system consists of a transmitter module, a 12-channel fiber optic cable, and a receiver module.The transmitter supports LVDS, CML and LVPECL differential signals. The receiver module is described for the LVDS electrical output only. A specification for Infineon's adjustable CML output can be provided separately.

The PAROLI transmitter module converts parallel electrical input signals via a laser driver and a Vertical Cavity Surface Emitting Laser (VCSEL) diode array into parallel optical output signals. All input data signals are Multistandard Differential Signals (LVDS compatible; they also support LVPECL and CML because of the wide common input range). The electrical interface (LVDS, LVPECL or CML) is selected by the supply inputs VIN. The data rate is up to 1250 Mbit/s for each channel.The transmitter module's min. data rate of 500 Mbit/s is specified for the CID1) worst case pattern (disparity 72) or any pattern with a lower disparity.

A logic low level of PAROLI at RESET switches all laser outputs off. During power-up RESET must be used as a power-on reset which disables the laser driver and laser control until the power supply has reached a 3.135 V level.The Laser Controller Up (LCU) output is low if a laser fault is detected or RESET is forced to low.All non data signals have LVCMOS levels.Transmission delay of the PAROLI system is  1 ns for the transmitter,  1 ns for the receiver and approximately 5 ns per meter for the fiber optic cable.