12x6.25 Gb/s TIA/LA RECEIVER ZL62089 PRODUCT PREVIEW
●The growing use of the Internet has created increasingly higher demand for multi-Gb/s I/O performance. The demand for 40 Gb/s bandwidth and beyond fuels the growth of short-reach, high-bandwidth infrastructures within high-end telco and datacom routers, switches, servers and other proprietary chassis-to-chassis links.
●The ZL62089 transimpedance amplifier achieves a nominal 5 GHz bandwidth over a wide range of photodiode input capacitance. Excellent channel-to-channel iso-lation ensures data integrity at the receiver sensitivity limits. An internal circuit provides the photodiode reverse bias voltage supply and senses average photo-current supplied to the photodiode array.
●The ZL62089 is AC-coupled internally to a high-gain, high-bandwidth, differential, limiting amplifier. The limiting amplifier provides a differential back-terminated CML output that can be used to drive 6.25 Gb/s per channel transceivers or other CML compatible clock and data recovery circuits. The CML output provides select-able pre-emphasis control to improve signal quality. The limiting amplifier features a circuit that senses optical modulation amplitude (OMA) to determine a loss of signal.
●A selectable analog multiplexer provides junction temperature, supply voltage, and received signal strength for each channel to enable optical module diagnos-tic features. Data controlling the ZL62089 is loaded by a simple 2-wire serial serial interface, reducing the number of pins required of a microcontroller.
[ Gigabit Ethernet ][ PCI Express ][ optical modules ][ Proprietary parallel optical modules ][ CWDM parallel optical modules ] |
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Datasheet |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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2017/11/29 |
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133 KB |
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