peb2255 Infineon Technologies Corporation, peb2255 Datasheet - Page 18

• Manufacturer Part Number: peb2255
• Description: E1/t1/j1 Framer And Line Interface Component For Long And Short Haul Applications
• Manufacturer: Infineon Technologies Corporation

E1/T1/J1 Framer and Line Interface Component for
Long and Short Haul Applications
FALC
Version 1.3
1.1
Line Interface
• High density, generic interface for all
• Analog receive and transmit circuitry for long haul and
• Data and clock recovery using an integrated
• Maximum line attenuation up to -43 dB at 1024 kHz
• Programmable transmit pulse shapes for E1 and T1/J1 pulse masks
• Programmable line build-out for CSU signals according to ANSI T1.403 + FCC68 in
• 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
• Jitter specifications of ITU-T I.431, G.703, G.736 (E1), G.823 (E1) and AT&T
• Optional crystal-less wander and jitter attenuation/compensation
• Dual rail or single rail digital inputs and outputs
• Unipolar NRZ or CMI coding for interfacing fibre optical transmission routes
• Selectable line codes (E1: HDB3, AMI - T1/J1: B8ZS, AMI with ZCS) for analog
• Loss of signal indication with programmable thresholds according to ITU-T G.775 and
• Clock generator for jitter free system/transmit clocks
• Local loop and remote loop for diagnostic purposes
• Only one type of transformer (ratio 1:
Type
PEB 2255
Data Sheet
E1/T1/J1 applications
short haul applications
digital phase locked loop
(E1)
and up to -36 dB at 772 kHz (T1/J1)
steps of 0 dB, -7.5 dB, -15 dB and -22.5 dB (T1/J1)
TR62411 (T1/J1) are met
interface
ETS300233 (E1)/ANSI T1.403, T1.231(T1/J1)
®
-LH
Features
2
18
) for E1 75/120
Package
P-MQFP-80-1
and T1/J1 100/110
P-MQFP-80-1
PEB 2255
2000-07