FEATURES

· Multi-Rate Operation from 155 Mbps up to

4.25 Gbps

· 89 mW Power Consumption

· Input Offset Cancellation

· High Input Dynamic Range

· Output Disable

· CML Data Outputs

· Receive Signal Strength Indicator (RSSI)

· Loss of Signal Detection

· Polarity Select

· Single 3.3-V Supply

· Surface Mount Small Footprint 3-mm ´ 3-mm

16-Pin QFN Package

· Pin-Compatible with the ONET2501PA and

ONET3301PA

APPLICATIONS

· Multi-Rate OC3 to OC-48 FEC SONET/SDH

Transmission Systems

· 1.0625 Gbps, 2.125 Gbps, and 4.25 Gbps Fibre

Channel Receivers

· Gigabit Ethernet Receivers

DESCRIPTION

The ONET4201PA is a versatile high-speed, 3.3-V

limiting amplifier for multiple fiber optic applications

with data rates up to 4.25 Gbps.

This device provides a gain of about 50 dB, which

ensures a fully differential output swing for input

signals as low as 3 mVp-p.

The high input signal dynamic range ensures low

jitter output signals even when overdriven with input

signal swings as high as 1200 mVp-p.

The ONET4201PA provides a loss of signal detection

as well as a received signal strength indicator.

The part is available in a small footprint 3-mm ´

3-mm 16-pin QFN package and is pin-compatible with

the ONET2501PA and ONET3301PA.

This power efficient limiting amplifier typically

dissipates less than 89 mW and it is characterized for

operation from –40°C to 85°C.