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Maxim产品 - MAX3955介绍

MAX3955 - 11.32Gbps Transceiver with Dual CDRs, Digital Monitors, and DC-Coupled Laser Driver

MAX3955是Maxim美信半导体公司的一款光电产品产品，MAX3955是11.32Gbps Transceiver with Dual CDRs, Digital Monitors, and DC-Coupled Laser Driver，本站介绍了MAX3955的封装应用图解、特点和优点、功能等，并给出了与MAX3955相关的Maxim元器件型号供参考。

MAX3955 - 11.32Gbps Transceiver with Dual CDRs, Digital Monitors, and DC-Coupled Laser Driver - 光电产品 - Enables 1W SFP+ Sonet OC-192 Applications - 美信半导体

产品概述

The MAX3955 is an 11.3Gbps, highly-integrated, low-power transceiver with dual CDRs, and digital diagnostics monitoring (DDM) designed for next-generation SONET transmission systems. The receiver incorporates a limiting amplifier with loss-of-signal (LOS) circuit. The limiting amplifier features an independent 9.95Gbps to 11.32Gbps CDR. The transmitter incorporates Maxim’s proprietary DC-coupled laser driver interface, an independent 9.95Gbps to 11.32Gbps CDR, and closed-loop control of average laser power.

The MAX3955 supports differential AC-coupled signaling with integrated 50Ω terminations at Rx input, Rx output, and Tx input. The Tx output is a DC-coupled 25Ω laser diode interface with dedicated pins for the laser anode (TOUTA) and the laser cathode (TOUTC).

An integrated 12-bit analog-to-digital converter (ADC) is utilized to provide digital monitors of internal/external temperature, VCC, and received signal strength indication (RSSI). The MAX3955’s analog monitors and the use of a 2-wire or 3-wire slave interface enables configuration through either a digital-only microcontroller (µC) or through the DS1978 SFP+ controller (future product).

The MAX3955 operates from single +3.3V supply and over a -40°C to +95°C temperature range and is available in a standard 5mm x 5mm, 32-pin TQFN-EP package.

关键特性
  • 以下关键特性由Maxim美信半导体提供：Performance
  • Dual CDRs Exceeding SONET Jitter Requirements with PLL Bandwidth Setting of 7MHz
  • 540mW Typical IC Power Dissipation (ILD_MOD = 45mA, IBIAS = 45mA, Both CDRs Enabled)Flexibility
  • Independent, Reference-less Tx and Rx CDRs
  • Pattern Generator for Receive and Transmit Paths
  • Signal Loop-Back Paths
  • Programmable Tx Input Equalization and Rx Output Deemphasis
  • Pin-Compatible with MAX3956 11.3Gbps TransceiverSafety and Monitoring
  • Integrated Eye Safety Features with Maskable Fault and Interrupt Signal Generation
  • Analog Monitors with Integrated 12-Bit ADC, Fully Supporting SFF-8472 DDM with Digital-Only µC
  • High-Accuracy Temperature, VCC, and RSSI Monitors
  • Auxiliary ADC Input at BADC for General Use
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