Datenblatt-pdf.com


PEF24911 Schematic ( PDF Datasheet ) - Infineon Technologies

Teilenummer PEF24911
Beschreibung Quad ISDN 2B1Q Echocanceller Digital Front End
Hersteller Infineon Technologies
Logo Infineon Technologies Logo 




Gesamt 30 Seiten
PEF24911 Datasheet, Funktion
Data Sheet, DS 3, July 2001
DFE-Q V2.1
Quad ISDN 2B1Q
Echocanceller Digital
Front End
PEF 24911 Version 2.1
Wired
Communications
Never stop thinking.






PEF24911 Datasheet, Funktion
PEF 24911
Table of Contents
Page
4.3.1
4.3.2
4.3.3
4.3.4
4.3.5
4.3.6
4.3.7
4.3.8
4.4
4.4.1
4.4.1.1
4.4.1.2
4.4.1.3
4.4.1.4
4.4.1.5
4.4.2
4.4.3
4.4.3.1
4.4.3.2
4.4.4
4.4.4.1
4.4.4.2
4.4.4.3
4.4.4.4
4.4.4.5
4.4.4.6
4.4.4.7
4.4.4.8
4.4.4.9
4.4.5
Complete Activation Initiated by LT . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Activation with ACT-Bit Status Ignored by the Exchange Side . . . . . . . 74
Complete Activation Initiated by TE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Complete Deactivation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Partial Activation (U Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Activation Initiated by LT with U Active . . . . . . . . . . . . . . . . . . . . . . . . . 82
Activation Initiated by TE with U Active . . . . . . . . . . . . . . . . . . . . . . . . . 84
Deactivating S/T-Interface Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Maintenance and Test Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Test Loopbacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Analog Loopback (No.1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Loopback No.2 - Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Loopback No.2 - Complete Loopback . . . . . . . . . . . . . . . . . . . . . . . . 91
Loopback No.2 - Single Channel Loopbacks . . . . . . . . . . . . . . . . . . . 93
Local Loopbacks Featured By Register LOOP . . . . . . . . . . . . . . . . . 95
Bit Error Rate Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Block Error Counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Near-End and Far-End Block Error Counter . . . . . . . . . . . . . . . . . . . 97
Testing Block Error Counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
System Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Single-Pulses Test Mode (SSP) . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Data Through Test Mode (DT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Reset Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Pulse Mask Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Power Spectral-Density Measurement . . . . . . . . . . . . . . . . . . . . . . 104
Total Power Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Return-Loss Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Quiet Mode Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Insertion Loss Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Boundary Scan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
5 Monitor Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
5.1 MON-0 - Exchanging EOC Information . . . . . . . . . . . . . . . . . . . . . . . . . . 110
5.2 MON-2 - Exchanging Overhead Bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
5.3 MON-8 - Local Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
6
6.1
6.2
6.3
6.4
6.4.1
Register Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Register Summary
118
Reset of U-Transceiver Functions in State ’Deactivated’ . . . . . . . . . . . . 120
Mode Register Evaluation Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Detailed Register Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
LP_SEL - Line Port Selection Register . . . . . . . . . . . . . . . . . . . . . . . . 121
Data Sheet
2001-07-16

6 Page









PEF24911 pdf, datenblatt
Quad ISDN 2B1Q Echocanceller Digital Front End
DFE-Q V2.1
PEF 24911
Version 2.1
1.1 Features
U-Interface
Digital part of a two-chip solution featuring full duplex
data transmission and reception over two-wire metallic
subscriber loops providing 4x ISDN basic rate access
or IDSL access at 144 kbit/s
Conforms to:
P-MQFP-64
ANSI T1.6011998
ETSI TS 102 080 (1998)
Recommendation ITU-T G.961
2B1Q-block code (2 binary, 1 quaternary) at 80-kHz symbol rate
LT mode
Data rate of the system interface programmable
Activation/ deactivation controller
15 s start-up guard timer (T1) can be disabled for use in repeater applications
Adaptive echo cancellation and equalization
Automatic gain control and polarity adaptation
Clock recovery (frame and bit synchronization) in all applications
Built-in wake-up unit for activation from power-down state.
System Interface
IOM®-2 interface with programmable data rates (1 Mbit/s to 4 Mbit/s)
SW controlled I/O ports for relay driver and power feeder control
4 relay driver pins per port
2 status pins per port
Type
PEF 24911
Data Sheet
Package
P-MQFP-64
2
2001-07-16

12 Page





SeitenGesamt 30 Seiten
PDF Download[ PEF24911 Schematic.PDF ]

Link teilen




Besondere Datenblatt

TeilenummerBeschreibungHersteller
PEF24911Quad ISDN 2B1Q Echocanceller Digital Front EndInfineon Technologies
Infineon Technologies

TeilenummerBeschreibungHersteller
CD40175BC

Hex D-Type Flip-Flop / Quad D-Type Flip-Flop.

Fairchild Semiconductor
Fairchild Semiconductor
KTD1146

EPITAXIAL PLANAR NPN TRANSISTOR.

KEC
KEC


www.Datenblatt-PDF.com       |      2020       |      Kontakt     |      Suche