Hot-selling and scarce PEF2256HV2.2 Telecom IC Framer, Line Interface Unit P-MQFP-80-1 spot stock

Product Features

• 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

Product Photos

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