The ADN2891 is a high gain, 3.2Gb/s limiting amplifier optimized for use in SONET, Gigabit Ethernet (GbE), and Fibre Channel optical receivers that accept input levels of up to 2.0 V p-p differential and have 4 mV p-p differential input sensitivity. The ADN2891 provides the receiver functions of quantization and loss of signal (LOS) detection. The ADN2891 operates at up to 3.2 Gb/s to support LX4 transceivers. The limiting amplifier also measures average received power based on a direct measurement of the photodiode current with better than 1 dB of accuracy over the entire input range of the receiver. This eliminates the need for external average Rx power detection circuitry in SFF-8472 compliant optical transceivers. The ADN2891 limiting amplifier operates from a single 3.3 V supply, has low power dissipation, and is available in a space saving 3 mm × 3 mm 16-lead lead frame chip scale package (LFCSP).
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|ADN2891: 3.3 V 3.2 Gbps, Limiting Amplifier Data Sheet (Rev A, 07/2005) (pdf, 605 kB)||Data Sheets|
Transceiver targets 4x Fibre Channel Applications
New optical transceiver chipset and reference design from Analog Devices supports both gigabit Ethernet and Fibre Channel data rates up to 4.25 Gbps (eeProductCenter, 1/20/05)
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|SFP Chipset and Reference Design Simplify 4.25 Gbps Transceivers||Overview||HTML|
Optical and High Speed Networking
(pdf, 2236 kB)
Analog Devices’ optical and high speed networking ICs solve a depth and breadth of challenges faced by today’s designers of datacom and telecom systems, optical modules, and subsystems. Analog Devices products address a wide range of networking applications from O/E/O conversion, clock recovery, and backplane transmission to monitoring and control of optical power, power management, and clock generation and distribution.
|RAQs index||Rarely Asked Questions||HTML|
|Glossary of EE Terms||Glossary||HTML|
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