PEF2256EV22NP Lantiq, PEF2256EV22NP Datasheet - Page 27

• Manufacturer Part Number: PEF2256EV22NP
• Manufacturer: Lantiq

Specifications of PEF2256EV22NP

• Number Of Transceivers: 1
• Screening Level: Industrial
• Mounting: Surface Mount
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Lead Free Status / RoHS Status: Supplier Unconfirmed

•
•
•
•
•
•
•
•
•
•
•
•
•
Frame Aligner
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Data Sheet
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)
Frame alignment/synthesis for 2048 kbit/s according to ITU-T G.704 (E1) and for
1544 kbit/s according to ITU-T G.704 and JT G.704 (T1/J1)
Programmable frame formats:
E1: Doubleframe, CRC multiframe (E1)
T1: 4-frame multiframe (F4,FT), 12-frame multiframe (F12, D3/4), extended
superframe (F24, ESF), remote switch mode (F72, SLC96)
Selectable conditions for recover/loss of frame alignment
CRC4 to non-CRC4 interworking according to ITU-T G. 706 Annex B (E1)
Error checking via CRC4 procedures according to ITU-T G. 706 (E1)
Error checking via CRC6 procedures according to ITU-T G. 706 and JT G.706
(T1/J1)
Performs synchronization in ESF format according to NTT requirements (J1)
Alarm and performance monitoring per second
16 bit counter for CRC-errors, framing errors, code violations, error monitoring via
E-bit and SA6-bit (E1), errored blocks, PRBS bit errors
Insertion and extraction of alarm indication signals (AIS, remote/yellow alarm,…)
Remote alarm generation/checking according to ITU JT-G.704 in ESF-format (J1)
IDLE code insertion for selectable channels
Single-bit defect insertion
Flexible system clock frequency for receiver and transmitter
Supports programmable system data rates with independent receive/transmit shifts:
E1: 2.048, 4.096, 8.192 and 16.384 Mbit/s (according to H.100/H.110 bus)
T1/J1: 2.048, 4.096, 8.192, 16.384 Mbit/s and 1.544, 3.088, 6.176, 12.352 Mbit/s
Elastic store for receive and transmit route clock wander and jitter compensation;
controlled slip capability and slip indication
27
Rev. 1.1, 2005-06-13
PEF 2256 H/E
Introduction
FALC
®
56