PEB 4364 T V1.2 Infineon Technologies, PEB 4364 T V1.2 Datasheet - Page 105

• 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

4. The offset registers OFR1 and OFR2 must be programmed to the value
5. Repeating the measurement of the DC content should result in a LM
6. Perform a new measurement with the rectifier enabled (bit LM-RECT = 1). The result
7. From this result, the peak value and the RMS value can be calculated:
3.8.2.6
The AC level meter is selected and enabled as shown in
Table 23
LM-SEL[3:0] in register
LMCR2
0000
0110
0111
Figure 40
meter allows access to the voice signal while the active voice signal is being processed.
The input signal for the AC level meter might get processed with a programmable filter
characteristic, such as a bandpass- or notch filter. Depending on the following settings,
the bandpass or notch filter is turned on or off:
•
•
•
•
The rectifier cannot be turned off, it is always active in the AC path. A shift-factor in front
of the integrator prevents the level meter from creating an overflow during an integration
operation. The shift-factor can be set by the coefficient LM-AC gain (see CRAM
coefficient set
Preliminary Data Sheet
where OFR1 is the high byte and OFR2 is the low byte of the 16 bit word OFFSET.
is the rectified mean value of the measured signal an can be calculated with the
formulas of
Register LMCR2 bit LM-FILT = 0: No filter enabled (normal operation)
Register LMCR2 bit LM-FILT = 1: Bandpass/notch filter characteristics enabled
Register LMCR2 bit LM-NOTCH = 0: Notch filter enabled, bandpass filter disabled
Register LMCR2 bit LM-NOTCH = 1: Bandpass filter enabled, notch filter disabled
OFFSET
V
V
Peak
RMS
on
=
=
AC Level Meter
----------------------------- -
V
---------------
Page 96
V
Selecting AC Level Meter Path
=
Table 35 "CRAM Coefficients" on Page
Peak
Table
Mean
2
–
------------------------------------------------------------ -
N Samples
2
22.
shows the path of the AC/TTX level meter functions. The AC level
LM Value
K INTDC
AC Level Meter Path
AC level meter in transmit
AC level meter in receive
AC level meter receive + transmit
105
205).
Table
Operational Description
23:
Value
DS3, 2003-07-11
of zero.
DuSLIC