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Low-power Limiting Post Amplifier for SFP Transceivers

Mon, 08/06/2007 - 12:11pm

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ec78ic308aMicrel’s SY88973BL low-power limiting post amplifier is designed for use in fiber optic receivers; specifically, it is suited for 1.25 Gbps and 2.5 Gbps Gigabit Ethernet, 1.062 Mbps and 2.125 Gbps Fibre Channel, Gigabit interface converter (GBIC), Small Form Factor (SFF) and SFP transceivers, parallel 10G Ethernet, high-gain line drivers and line receivers in both the Telecom/datacom and Optical transceiver markets. The SY88973BL incorporates a loss-of-signal (LOS), open-collector TTL output with an external 4.75 k ohm to 10 k ohm pull-up resistor. This IC offers multi-rate capability from 622 Mbps up to 3.2 Gbps operation. It also features internal 50 ohm data input and low-noise 50 ohm CML data output. The transceiver has chatter-free OC-TTL LOS output with programmable LOS sensitivity using a single external resistor. Available in a 3 mm × 3 mm 16-pin MLF package, the device operates from a single +3.3V ±10 percent power supply, over an industrial temperature range of -40°C to +85°C. It is priced at $3.31 for 1K quantities.


Micrel Semiconductor
408-944-0800, www.micrel.com 

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