PEB2256HT datasheet(19/490 Pages) INFINEON

19 / 490 page

Data Sheet

2002-08-27

Type

Package

PEB 2256 HT

P-MQFP-80-1

PEB 2256 E

P-LBGA-81-1

E1/T1/J1 Framer and Line Interface Component for

Long- and Short-Haul Applications

FALC56

PEB 2256 HT

Version 1.2

1.1

Features

Line 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 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, -7.5dB,

-15dB, -22.5 dB (T1/J1)

• Low transmitter output impedances for high transmit

return loss

• Tristate function of the analog transmit line outputs

• 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

P-MQFP-80-1

P-LBGA-81-1

PEB2256HT Datasheet(PDF) 19 Page - Infineon Technologies AG

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