Datasheet Texas Instruments ONET4291PARGVR — 数据表

ONET4291PA
www.ti.com SLLS671 – SEPTEMBER 2005 1-Gbps to 4.25-Gbps Rate-Selectable Limiting Amplifier
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-Ω
Back-Termination to VCC
Single 3.3-V Supply
Surface-Mount, Small-Footprint, 4-mm Г—
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 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 …