• - 交流-直流(AC-DC)控制器和稳压器
• - 直流-直流(DC-DC)控制器、转换器和稳压器
• - 电压和电流管理
• - 通讯IC
• - 驱动器
• - 热管理

• - 时钟及数据分配
• - 标准逻辑

• - 放大器和比较器
• - 模拟开关
• - 数字电位计
• - 接口
• - EMI和RFI滤波器

• - EEPROM存储器
• - 非易失性只读存储器(NVRAM)
• - SRAM存储器

说明

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 mV_p-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.

特性

• 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