PEB3265FV15XP Infineon Technologies, PEB3265FV15XP Datasheet - Page 251
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PEB3265FV15XP
Manufacturer Part Number
PEB3265FV15XP
Description
Manufacturer
Infineon Technologies
Datasheet
1.PEB3265FV15XP.pdf
(383 pages)
Specifications of PEB3265FV15XP
On-hook Transmission
Yes
Polarity Reversal
Yes
On-chip Ring Relay Driver
Yes
Operating Supply Voltage (typ)
3.3V
Operating Temp Range
-40C to 85C
Package Type
TQFP
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Operating Supply Voltage (max)
3.465V
Operating Supply Voltage (min)
3.135V
Lead Free Status / RoHS Status
Compliant
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Preliminary
Bit
LEC-ADAPT
LEC-FREEZE Line Echo Canceller Adaptation Freeze
UTDX-SUM
Data Sheet
4A
H
CIS/LEC-
MODE
ADAPT
LEC-
7
Line Echo Canceller Adaptation Start. The LEC-ADAPT bit is only
evaluated if the LEC-EN is changed from 0 to 1.
To initialize the LEC coefficients to 0 requires the LEC-ADAPT bit set
to 0 followed by the LEC-EN bit changed from 0 to 1.
It is not possible to reset the LEC coefficients to 0 while the LEC is
running. The LEC has to be disabled first by setting bit LEC-EN to 0 and
then it is necessary to enable the LEC again (LEC-EN = 1, LEC-ADAPT
= 0). If valid coefficients from a former LEC adaptation are present in
the RAM, it is possible to activate the LEC with this coefficents by
setting bit LEC-ADAPT to 1.
It is also possible to read out adapted coefficients from the LEC for
external storage and to reuse these coefficients as a start up value for
the next connection (see the available Apllication Notes).
LEC-ADAPT = 0
LEC-ADAPT = 1
LEC-FREEZE = 0 No freezing of coefficients
LEC-FREEZE = 1 Freezing of coefficients
Sum signal for Universal Tone Detection unit in transmit direction
UTDX-SUM = 0
UTDX-SUM = 1
FREEZE
LEC-
CIS/LEC Mode Setting
6
UTDX-
SUM
5
SLICOFI-2x Command Structure and Programming
Line Echo Canceller coefficients initialized with
zero
Line Echo Canceller coefficients initialized with old
coefficients
The transmit signal is fed through
if LEC is enabled) is fed through
(see bit UTDX-SRC in BCR2 and
The sum signal S
UTDR-
SUM
4
251
3
0
SUM
(receive signal + LEC signal,
2
0
DuSLIC-E/-E2/-P
FRM
CIS-
Figure
1
2000-07-14
32)
CIS-
V23
0
Y
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