PEB 4364 T V1.2 Infineon Technologies, PEB 4364 T V1.2 Datasheet - Page 110

• Manufacturer Part Number: PEB 4364 T V1.2
• Description: IC SLIC VOICE ACCESS PDSO-36
• Manufacturer: Infineon Technologies
• Series: DuSLICr

Specifications of PEB 4364 T V1.2

• Function: Dual Channel Subscriber Line Interface Circuit (DuSLIC)
• Interface: IOM-2, PCM
• Number Of Circuits: 2
• Voltage - Supply: 3.3 V ~ 5 V
• Current - Supply: 105mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 36-PDSO
• Includes: DTMF Generator and Decoder, Line Echo Cancellation (LEC), Teletax (TTX) Generation, Universal Tone Detection (UTD)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power (watts): -
• Other names: PEB4364TV1.2XT; SP000007728

OFFSET
I
3.8.2.8
The current offset error caused by the current sensor inside the SLIC can be
compensated by programming the compensation registers OFR1 and OFR2
accordingly. The current offset error can be measured with the DC level meter. The
following settings are necessary to accomplish this:
•
•
•
•
The current offset error can be eliminated by programming the offset registers OFR1 and
OFR2 according to the inverse value of the measured current offset error.
Example:
K
Short form:
OFR1 = OFFSET-H = 0xFF
OFR2 = OFFSET-L = 0xFA
Preliminary Data Sheet
LM
OFFSET
off Err
INTDC
–
The DuSLIC must be set into the HIRT mode by setting the bits HIR and HIT in
register BCR1 to 1.
In HIRT mode, the line-drivers of the SLIC are shut down and no resistors are
switched to the line. As a matter of fact, no current is present in that mode, but the
current sensor wrongly indicates a current flowing (current offset error).
The DC path for I
LM-SEL[3:0] bits in register LMCR2 to 0101 (see
The offset registers OFR1 and OFR2 must be set to 0000h.
I
example below).
Result
Off-Err
= 1, N
=
can be calculated like shown for “I
=
=
LM Result
=
Current Offset Error Compensation
–
LM
--------------------- -
Samples
–
------------------------ -
79.66 mA
32768
------------------------------------------------------------ -
N Samples
I
Off Err
Value
–
= 256, LM
LM Value
=
TRANS
------------------------------------------------------------ -
N Samples
--------------- -
32768
1541
32768
K INTDC
Value
current level meter must be selected by setting the
79.66 mA
=
=
= 0x0605 = 1541
0.047
–
0.0146 mA
---------------------------- -
K INTDC
79.66 mA
110
TRANS
=
: any other mode” in
0.047
32768
Table
79.66 mA
------------------------ -
19).
256
–
Operational Description
6
=
1
0xFFFA
Table 22
=
DS3, 2003-07-11
0.0146 mA
DuSLIC
(see the