40G QSFP+ SR BD

描述

Descriptions:

40G-SR- BD-S1 is transmitter portion of the transceiver (see Fig-ure 1) incorporates a 4-channel XLPPI input buffer, elec-trical multiplexer, two laser drivers and two high speedVCSELs (Vertical Cavity Surface Emitting Laser). The trans-mitter is designed for EN 60825 and CDRH Class 1M eye safety compliance. The Tx Input Buffer provides XLPPI compatible differential inputs presenting a nominal dif-ferential input impedance of 100 Ohms. AC coupling capacitors are located inside the QSFP+ module and arenot required on the host board. For module control and interrogation, the control interface (LVTTL compatible) in-corporates a Two Wire Serial (TWS) interface of clock and data signals.The optical receiver portion of the transceiver (see Figure1) incorporates two high speed PIN photodiodes, TIAs, signal processors, electrical de-multiplexer and 4 chan-nel electrical output buffer blocks. The Rx Output Buffer provides XLPPI compatible differential outputs for the high speed electrical interface presenting nominal single-ended output impedances of 50 Ohms to AC ground and 100 Ohms differentially that should be differentially termi- nated with 100 Ohms. AC coupling capacitors are located inside the QSFP+ module and are not required on the hostboard.The electrical output will squelch for loss of input signal (unless squelch is disabled) and channel de-activation through TWS interface. To reduce the need for polling, a hardware interrupt signal INTL is provided to inform hosts of an assertion of LOS or Tx_FAULT.

Compliant 40Gb/s QSFP+ BIDI 850nm/900nm 100m

CRED SFP transceiver could compliant with most of word brand products, like Cisco, Finisar, HP, Ericsson, Nortel Arista, Juniper, Extreme, Allied Telesis, Foundry, Force10, Alcatel-Lucent…and more.

Product Features

• Supports 1.06 to 10.5Gb/s bit rates per Channel
• Hot pluggable QSFP+ form factor
• VCSELtransmitters and PIN receiver
• Applicable for 100m on OM3 MMF,150mon OM4 MMF.
• Utilizes a standard LC duplex fiber cable allowing reuse of existing cable infrastructure
• Built-in digital diagnostic functions
• Low power consumption, < 3.5W
• Unretimed XLPPI electrical interface
• Compliant to QSFP+ SFF-8436 Specification
• Operating case temperature: -5°C to 80 °C

Applications

• 40GBASE-SR4 40G Ethernet
• Datacom/Telecom switch & router connections
• Data Aggregation and Backplane Applications
• Proprietary Protocol and Density Applications