PEF24901HV22XT Lantiq, PEF24901HV22XT Datasheet - Page 14

• Manufacturer Part Number: PEF24901HV22XT
• Manufacturer: Lantiq

Specifications of PEF24901HV22XT

• Control Interface: HDLC
• Lead Free Status / Rohs Status: Compliant

Quad ISDN 4B3T Echocanceller Digital Front End
DFE-T V2.2
Version 2.2
1.1
U-Interface
• Digital part of a two-chip solution featuring full duplex
• Conforms to:
• 4B3T-block code at 120-kHz symbol rate
• Subscriber loop length without repeater:
• LT mode
• 1 kbit/s maintenance channel for transmission of data loopback commands and
• Activation/ deactivation controller
• Adaptive echo cancellation and equalization
• Automatic gain control and polarity adaption
• Clock recovery (frame and bit synchronization)
• Transmission error counters for line monitoring
• Remote and local control of test loops
System Interface
• IOM
• 4 relay driver pins per port addressable by Monitor command
• 2 status pins per port accessible via Monitor channel
Type
PEF 24901
Data Sheet
data transmission and reception over two-wire metallic
subscriber loops providing 4x ISDN basic rate access
at 144 kbit/s
– FTZ 1TR 220 (1991)
– ETSI TS 102 080 V1.3.1 (1998)
– ITU-T G.961 (1995)
– up to 4.2 km on 0.4 mm wire
detected transmission errors
®
-2 interface with programmable data rates (1 Mbit/s to 4 Mbit/s)
Features
15
Package
P-MQFP-64
P-MQFP-64-1, -2, -3, -8
PEF 24901
2002-09-30