IEC4-T 24901 V2.1 (DFE-T) 24902 V2.1 (AFE) ISDN Echocancellation
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RELIMINARY
IEC4-T
24901 V2.1 (DFE-T) 24902 V2.1 (AFE) ISDN Echocancellation Circuit 4-Channel 4B3T Line Code
widely used ISDN 4-channel chipset IEC4-T consisting analog frontend PEB/F 24902 (AFE) digital frontend PEB/F 24901 (DFE-T) been optimized redesign digital part. improvements DFE-T reduced supply-voltage advanced power 3.3V-CMOS-technology, doubling IOM®-2 data-rate Mbit/s features terms testability analysis. IEC4-T chipset fulfills relevant FTZ, ETSI standards. Because multichannel-architecture extremely suitable highly integrated ISDN linecards.
Applications
Central office digital linecard Access network linecards linecards
Features
chip solution featuring full duplex data transmission reception over two-wire metallic subscriber loops providing ISDN basic rate access Fully compliant Guideline 1TR220 ETSI (1998) Recommendation ITU-T I.430 4B3T block code symbol rate Loop length without repeater: wire wire mode
power consumption IOM®-2 interface stand alone mode kbit/s maintenance channel transmission data loopback commands detected transmission errors Masterclock generated Activation deactivation Adaptive echo cancellation equalization Automatic gain control polarity adaption relay driver pins channel switch relays power controller status pins channel Extended temperature range (40°C +85°C) JTAG Boundary Scan P-MQFP-64 package Part Infineon System Solution
Add-On Features DFE-T 24901 V2.1 compared V1.x
Max. IOM®-2 data rate Mbit/s (DCL MHz) +3.3 instead power supply Dedicated pins test modes DOUT configurable either open drain push-pull (tristate) output MON-12 class features internal register access Additional digital local loops Error Rate Measurement port Optimized LT-state machine Backward compatibility V1.x: software changes required pinning-compatible
ISDN
4-Channel Chipset
Block Diagram
V2.1
Hybrid
DFE-T V2.1 Protocol Processing Unit 4B3T Encoder Echo Canceller Filter Equalizer 4B3T Decoder DeScrambler DeFraming Scrambler Framing System Interface Unit IOM®-2
Level Detection Wake Bandgap, Bias, Refer.
Timing Recovery
Activation/Deactivation Controller
Clock Generation
Mode Setting
Control
Clocks
Mode Pins
General Purpose I/Os
Type 24901 V2.1 PEB/F 24902 V2.1
Package P-MQFP-64 P-MQFP-64
Availability Development Available
Tools Documentation
Name Preliminary Data Sheet 24901 V2.1 Delta Sheet 24901 V2.1 Product Overview Smart 24901 V2.0
Status 06.99 03.99 04.99 Development
Test Unit Q-IHPC 2426 V2.1 24902 DFE-T V2.1 24901 IOM®-2 DELIC-PB 20571 Signaling
Application Examples ISDN Linecard
VBAT
reach http://www.infineon.com Published Infineon Technologies St.-Martin-Strasse 81541 Infineon Technologies 2001. Rights Reserved.
Attention please! information herein given describe certain components shall considered warranted characteristics. Terms delivery rights technical change reserved. hereby disclaim warranties, including limited warranties non-infringement, regarding circuits, descriptions charts stated herein. Infineon Technologies approved CECC manufacturer. Information further information technology, delivery terms conditions prices please contact your nearest Infineon Technologies Office Germany Infineon Technologies Representatives worldwide.
Warnings technical requirements components contain dangerous substances. information types question please contact your nearest Infineon Technologies Office. Infineon Technologies Components only used life-support devices systems with express written approval Infineon Technologies, failure such components reasonably expected cause failure that life-support device system, affect safety effectiveness that device system. Life support devices systems intended implanted human body, support and/or maintain sustain and/or protect human life. they fail, reasonable assume that health user other persons endangered. Ordering B115-H7865-X-X-7600 Printed Germany 0301.3
Published Infineon Technologies
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