ONET4291PA Texas instruments

ONET4291PA

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ONET4291PA

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Описание

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 -40°C to 85°C ambient temperature.

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 V_CC
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

Type	Limiting amplifier
Data rate (max) (MBits)	4250
Features	Bandwidth select
Supply current (typ) (µA)	36000
Supply current (max) (µA)	64000
Deterministic jitter (typ) (ps)	5
Operating temperature range (°C)	-40 to 85