Tue, 09/02/2003 - 8:28am
Protecting 10/100 Base-TX data handling circuitry under extreme operating temperatures from 40°C to +85°C, the NT805T Series LAN Filter Module is compatible with most transceiver chipsets for military networking environments. The NT805T Series LAN Filter Module offers filtering protection from electromagnetic interference (EMI), provides differential to common mode rejection performance and helps overcome the bandwidth limitations common to Category 5 twisted pair cabling. Available in single, dual and quad port configurations, the NT805T Series LAN Filter Module contains two channel isolation transformers and is available with two common mode chokes and pre-distortion resistors. The 1500 Vrms minimum isolation from chip to cable protects equipment from static charge on cabling, and the available common mode chokes provide the necessary EMI filtering. The NT805T Series features an insertion loss of 1.1 db maximum at 1 to 100 MHz. Rise time is 2.5 nanoseconds typical from 10% to 90%. From 0.1 to 60 MHz return loss is 5 dB typical; from 60 to 100 MHz typical return loss is 㪣 db. Common mode choke rejection ration is 45 db from 0.1 to 60 MHz; 40 dB from 60 to 100 MHz. Crosstalk is 40 dB minimum from 0.1 to 60 MHz; 38 dB from 60 to 100 MHz. Its high temperature packaging can withstand IR reflow soldering equipment with a peak temperature of up to 235°C.
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