VI Systems GmbH says its sampling a vertical cavity surface emitting laser (VCSEL) driver and limiting transimpedance amplifier (TIA) for 56-Gbps non-return-to-zero (NRZ) modulation. The chips are designed for latency critical optical communication links, such as very short and ultra-short reach interconnects based on the CEI-56G standard by the Optical Internetworking Forum (OIF).
This set of ICs are intended for differential signal input or output channels. The chips feature a power consumption of less than 280 mW, with a die size of 0.64x1.04 mm, and operation voltage specified up to 3.3 V.
|Bandwidth simulation versus the actual measurement of the VCSEL|
driver IC at characteristic bias conditions is demonstrated in the graph
above. The -3-dB modulation bandwidth is up to ~63 GHz.
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