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( File format: PDF, 993 KB )
1-Gbps to 4.25-Gbps Rate-Selectable Limiting Amplifier
Texas Instruments

Description
The ONET4291PA is a versatile, high-speed, rate-selectable limiting amplifier for multiple fiber-optic applications with data rates up to 4.25 Gbps. The device provides a two-wire interface, which allows digital bandwidth selection, digital output amplitude selection, and digital loss of signal threshold adjust. This device provides a gain of about 43 dB, which ensures a fully differential output swing for input signals as low as 5 mVp-p. The ONET4291PA provides loss-of-signal detection with either digital or analog threshold adjust. The part is available in a small-footprint, 4-mm 4-mm, 16-terminal QFN package. It requires a single 3.3-V supply. This power-efficient, rate-selectable limiting amplifier is characterized for operation from -40C to 85C ambient temperature.
Features
Multirate Operation from 1 Gbps up to 4.25 Gbps Loss-of-Signal Detection (LOS) Two-Wire Digital Interface Digitally Selectable LOS Threshold Digitally Selectable Bandwidth Digitally Selectable Output Voltage Low Power Consumption Input Offset Cancellation CML Data Outputs With On-Chip, 50- Back-Termination to VCC Single 3.3-V Supply Surface-Mount, Small-Footprint, 4-mm 4-mm, 16-Terminal QFN Package APPLICATIONS Multirate SONET/SDH Transmission Systems 4.25-Gbps, 2.125-Gbps, and 1.0625-Gbps Fibre-Channel Receivers Gigabit Ethernet Receivers

Related Datasheets
Part Number Description Category
? ?ONET2511TA ONET2511TA: 2.5 GBPS Transimpedance Amplifier With RSSI EDA - Embedded Systems Design
? ?ONET4201LD 155 Mbps to 4.25 Gbps Laser Driver EDA - Embedded Systems Design
? ?ONET4211LD 155 Mbps to 4.25 Gbps Laser Driver (Rev. A) EDA - Embedded Systems Design
? ?ONET4291TA 4.25 Gbps Transimpedance Amplifier with AGC and RGGI EDA - Embedded Systems Design
? ?ONET4291VA 1.0 Gbps to 4.25 Gbps Multi-Rate VCSEL Driver EDA - Embedded Systems Design



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