PEB2466 SIEMENS [Siemens Semiconductor Group], PEB2466 Datasheet - Page 54

• Manufacturer Part Number: PEB2466
• Description: Four Channel Codec Filter with PCM- and m-Controller Interface SICOFI4-mC
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Semiconductor Group
Figure 15
QSICOS Supports:
• Calculation of Coefficients for the
• Simulation of the PEB 2466 and SLIC System with fixed filter coefficients allows
• Graphical Output of Transfer Functions to the Screen for
• Calculation of the PEB 2466 and SLIC system Stability. The IM-filter of the
– Impedance Filter (IM) for return loss calculation (please note that the IM filter
– FRR and FRX-filters for frequency response in receive and transmit path
– AR1, AR2 and AX1, AX2-filter for level adjustment in receive and transmit path
– Trans Hybrid Balancing Filter (TH) and
– two programmable tone generators (TG 1 and TG 2)
simulations of tolerances which may be caused e.g. by discrete external components.
– Return Loss
– Frequency responses in receive and transmit path
– Transhybrid Loss
PEB 2466 adjust the total system impedance by making a feedback loop. Because the
line is also a part of the total system, a very robust method has to used to avoid
oscillations and to ensure system stability. The input impedance of the PEB 2466 and
SLIC combination is calculated. If the real part of the system input impedance is
positive, the total system stability can be guaranteed.
~
~
coefficients are different for the PEB 2466 and for the PEB 2465. QSICOS
calculates the programming bytes for the SICOFI-4 IOM version PEB 2465. These
bytes have to be converted with an additional tool to get the required PEB 2466
programming bytes. The conversion tool QSUCCONV.EXE is part of the QSICOS
software package.)
K = Z
11
(
K
IN
21
Interface
Interface
Automatic K-Param Extraction
Z -
Line
Line
=
V
g
) /
2
/
(
V
Z
Simulation
g
IN
(PSPICE)
+ Z
g
)
K
12
K =
22
Interface
Interface
=
Line
Line
2 *
V
2
V
/
1
V
/
V
3
3
~
~
K-Parameter
Interface-
54
File
Calculation-Controlfile
Programming the SICOFI
Filter-Coefficients-Optimization
Software for
QSICOS
RD[dB]
Country-Spec
f
[Hz]
PEB 2466
Coefficients
SICOFI
File
®
ITD09611
-4- C
02.97
R