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See Technical Specifications

PEF2256 +BOM

IC TELECOM INTERFACE 81LBGA

Manufacturer:

SAA
Mfr.Part #:

PEF2256
Datasheet:

PEF2256 Datasheet (PDF)
Series:

FALC™
Function:

Framer, Line Interface Unit (LIU)
Interface:

E1, HDLC, J1, T1
Number Of Circuits:

1
EDA/CAD Models:

Request Free CAD Models for PEF2256

PEF2256 General Description

IntroductionThe FALC®56 framer and line interface component is designed to fulfill all required interfacing between analog E1/T1/J1 lines and the digital PCM system highway, H.100/H.110 or H-MVIP bus for world market telecommunication systems.FeaturesLine Interface• High-density, generic interface for all E1/T1/J1 applications• Analog receive and transmit circuits for long-haul and short-haul applications• E1 or T1/J1 mode selectable• Data and clock recovery using an integrated digital phase-locked loop• Maximum line attenuation up to -43 dB at 1024 kHz (E1) and up to -36 dB at 772 kHz (T1/J1)• Programmable receive equalizer characteristic• Software-selectable receive line termination• Programmable transmit pulse shapes for E1 and T1/J1 pulse masks• Programmable line build-out for CSU signals according to ANSI T1. 403 and FCC68: 0dB, -7.5 dB, -15 dB, -22.5 dB (T1/J1)• Low transmitter output impedances for high transmit return loss• Tristate function of the analog transmit line outputs• Analog switch for redundancy applications• Transmit line monitor protecting the device from damage• Receive line monitor mode• Jitter specifications of ITU-T I.431, G.703, G.736 (E1), G.823 (E1) and AT&T TR62411 (T1/J1) are met• Crystal-less wander and jitter attenuation/compensation• Common master clock reference for E1 and T1/J1 (any frequency within 1.02 and 20 MHz)• Power-down function• Support of automatic protection switching• Dual-rail or single-rail digital inputs and outputs• Unipolar NRZ or CMI for interfacing fiber-optical transmission routes• Selectable line codes (E1: HDB3, AMI/T1: B8ZS, AMI with ZCS)• Loss-of-signal indication with programmable thresholds according to ITU-T G.775, ETS300233 (E1) and ANSI T1.403 (T1/J1)• Optional data stream muting upon LOS detection• Programmable receive slicer threshold• Clock generator for jitter-free system/transmit clocks per channel• Local loop and remote loop for diagnostic purposes• Low power device• Single power supply (3.3 V) or dual power supply (3.3 V and 1.8 V)(Continue .)

Specifications

Category	Integrated Circuits (ICs)InterfaceTelecom	Series	FALC™
Function	Framer, Line Interface Unit (LIU)	Interface	E1, HDLC, J1, T1
Number of Circuits	1	Voltage - Supply	1.8V, 3.3V
Current - Supply	80mA	Power (Watts)	250 mW
Operating Temperature	-40°C ~ 85°C	Mounting Type	Surface Mount
Base Product Number	PEF 2256