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Optical receivers take the heat

Posted: 11 Mar 2005 ?? ?Print Version ?Bookmark and Share

Keywords:nec compound semiconductor devices? nec electronics? nec? nr3312? nr4210?

NEC Compound Semiconductor Devices Ltd and NEC Electronics introduced the NR3312 and NR4210 series of receiver optical sub-assembly (ROSA) modules used in Gbps optical transceivers. The NR3312 series is capable of operating across temperatures of -5C to 100C, which NEC reports is the highest heat tolerance for 10Gbit/s optical modules in the industry.

The NR3312 series of cost-efficient PIN-type ROSAs features typical sensitivity of -20dBm, typical responsivity of 0.9A/W, with minimum overload of 1.5dBm. The PIN detector's and transimpedance amplifier's applied voltage is 3.3Vdc volts.

The NR4210 series of highly sensitive APD-type ROSAs features efficient conversion of optical signals to electronic signals, and is optimized for high-speed performance. The series achieves best-in-class sensitivity ratings of -28dBm. Typical responsivity is 0.9A/W, with minimum overload of -7dBm.

The NR3312 and NR4210 series support 10Gbps XENPAK, XPAK, and X2 transceivers with SC interfaces, as well as XFP transceivers with LC interfaces. Both series also support flexible PCBs.

The NR3312 series is priced at $260 each in production quantities, while the NR4210 series is priced at $650 each in production quantities. Samples are already available, with mass production scheduled to begin in August 2005. Additional information can be found online.

- Janine Love

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