Hot-selling and scarce PEF3394ELV2.2 VOICE AND INTERNET ENHANCED TELE BGA spot stock

Product Descriptions

The TE3-LIU™ PEF 3452 Line Interface Unit is used to connect a DS3/STS-1 or E3 framer device to an analog transmission line. The line interface fulfills the relevant standards for DS3 (44.736 Mbit/s), STS-1 (51.840 Mbit/s) and E3 (34.368 Mbit/s) systems.

The TE3-LIU™ comes in a P-MQFP-44-2 package (SMD) to save a significant amount of board space. The integrated jitter attenuation further reduces overall system complexity and cost.

This CMOS 3.3 V low power device contains an integrated pulse shaper to drive any line length within the range of up to 1100 ft. without the need for external length selection (Line Build Out).

The hardware configuration mode allows low cost systems with flexible device setting without the need for a microprocessor.

An optional microprocessor mode allows the connection to a standard microprocessor bus to control hardware settings.​

Product Features

• Generic analog interface for all DS3/STS-1/E3 applications

• Single chip solution for receive and transmit direction

• 3.3 V low power device

• Integrated receive equalization network

• Integrated noise and crosstalk filter

• Clock and data recovery using an integrated PLL with ultra-low intrinsic jitter

• Transmit clock duty cycle correction PLL

• No external components required for clock and data recovery and receive equalizer

• DSX receive line monitor (additional 20 dB gain according to ANSI T1.102)

• Low transmitter output impedances for high transmit return loss

• Disable function of the analog transmit line outputs

• Transmit pulse shaper to fulfill requirements of ANSI T1.404, Telcordia GR-499-CORE, ANSI T1.102 and ITU-T G.703 (E3)

• Maximum line length up to 1100 ft. (using standard coaxial cable, for example AT&T 728A, 734A or 734D)

• External line length selection (LBO) is not required

• Jitter specifications of GR-499-CORE and ITU-T G.823 are met

• Integrated jitter attenuation PLL and buffer in transmit direction

• Dual or single rail digital inputs and outputs from/to the framer interface

• Selectable line codes (HDB3 (E3), B3ZS (DS3/STS-1), AMI)

• Analog and digital loss of signal detection and indication

• Automatic RDOP/RDON blanking option in case of LOS

• Bipolar violation indication

• Local loop and remote loop for diagnostic purposes

• Insertion of alarm indication signal ("all ones")

• Flexible hardware or software controlled device configuration

• Device power down function

Product Specification

Product Photos

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