On March 10, Spanish optical fiber POF communication chip and module developer KDPOF announced the launch of a new integrated optical fiber transceiver (FOT) KD9351, which can further reduce the cost of Gigabit (1Gb/s) in-vehicle optical networks. The KD9351 is a small size optical fiber transceiver that integrates transmit and receive optoelectronic devices into a single package that can support 100Mb/s or even 1Gb/s.
(Image credit: KDPOF)
Carlos Pardo, CEO and Co-Founder of KDPOF, said: “Combining the new FOT KD9351 with the existing KD1053 IC results in a 30% cost reduction for 1Gb/s compared to STP (Shielded Twisted Pair). This new integrated device enables Provides higher efficiency and flexibility, paving the way for optical Gigabit Ethernet in vehicles.” The new KD9351 is price competitive, which is important for EMC (electromagnetic compatibility) critical parts or galvanically isolated critical links , which can be applied to secure Ethernet backbones and sensor links for advanced driver assistance systems (ADAS).
By integrating the transimpedance amplifier, photodiode, LED driver, and LED into a single device, KDPOF significantly reduces the cost of the new KD9351, shortens the supply chain, and avoids duplication with Tier 1 final testing. In addition, the company simplifies the assembly of the FOT and existing KD1053 ICs and uses a snap-fit connector that eliminates the need for soldering.
The KD9351 again uses low-cost MEMs (Micro Electro Mechanical Systems) packages and allows SMD (Surface Mount Device) reflow soldered components to be used in 8 x 7 mm LGA (Land Array Package) components. It is also completely shielded from electromagnetic radiation, and fiber optic connections are made with simple plastic connectors placed on top. The FOT has an operating temperature range of -40°C to +105°C to meet the harsh automotive environment requirements.
It also withstands motor vibration class V2, is waterproof and unsealed. Since the shield is integrated into the PCB (Printed Circuit Board) assembly, the EMC can exhibit excellent performance even when the ECU (Electronic Control Unit) shield is removed. The optics employ Tx (transmit) and Rx (receive) interfaces. Currently, the company has produced samples of the product.
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