The Lark 800 is used in the next-generation, low-power, high- performance 2x (4x106G to 4x106G), or 8x106G to 8x106G PAM-4 OSFP, or QSFP-DD800 optical transceivers for high-density data centers. Dedicated PLLs are included for each transmit and receive data lane enabling seamless operation in breakout applications.
This unique architecture is optimized for die size and mainstream silicon process technology, enabling low cost of ownership, and accelerating market adoption.
Powerful DSPs on optical line side and electrical host side deliver industry leading sensitivity and BER performance, allowing margin for optical alignment and crosstalk.
Line side receivers include non-linear cancellation and reflection cancellation, which improves yields and reduces module cost.
High-performance transmitters come with multi-tap FIR filters and non-linear cancellation, allowing precision optimization at both the module electrical connector and the optical interface.
Host side interface supports up to 30dB insertion loss channel, connecting seamlessly with different length switch interfaces without need for customized per-channel settings.
Independent phase locked loops per channel support flexible breakout configurations including 2x400GbE, 4x200GbE and 8x100GbE.
Full suite of test features and loopbacks simplifies lab bring-up, production testing and reduces time-to-market.
On-chip crossbar simplifies module layout design.
Low power dissipation enables higher rack utilization and lower thermal cooling requirements.
