MAX3955

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

Enables 1W SFP+ Sonet OC-192 Applications


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说明

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.

MAX3955: Simplified Block Diagram MAX3955: Simplified Block Diagram 放大+

关键特性

    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 Transceiver
    Safety 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

应用

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Part NumberApplicationsTarget Oper. Range
(Gbps)
Data Rate
(Mbps)
Data Rate
(Mbps)
VSUPPLY
(V)
ICC
(mA)
I/O TypeIMOD
(mA)
IBIAS
(mA)
Package/PinsOper. Temp.
(°C)
minmaxtypmaxmax
MAX3955 
10G Ethernet
Fibre Channel
SFP+
SONET/SDH
1.25 to 11.39950113003.3165CML85100
THIN QFN/32
-40 to +95
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Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。

技术资料

应用笔记 5888 Recommended Initialization Sequence for the MAX3955 and MAX3956 Devices

质量和环境数据

产品可靠性报告: MAX3955.pdf 
无铅封装的锡(Sn)晶须报告

CAD Symbols and Footprints

  • MAX3955ETJ+
  • MAX3955ETJ+T
  • 型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

    备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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