PSB4596 Siemens Semiconductor Group, PSB4596 Datasheet - Page 21
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PSB4596
Manufacturer Part Number
PSB4596
Description
Analog Line Interface Solution ALIS
Manufacturer
Siemens Semiconductor Group
Datasheet
1.PSB4596.pdf
(104 pages)
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chip coefficient RAM (CRAM) in order to program the filters. Transmit and receive data
is transferred to and from the data pump via the data interface.
4.2
ALIS architecture is based on digital filters. The data path through these filters is shown
in the next few diagrams. The filter concept also allows maximum autonomy between the
different filter blocks. Each filter block has a one-to-one correspondence with a specific
network element. Marked filters (grey) can be programmed by the user.
Figure 10 AC Signal Flow Graph
Semiconductor Group
digital in
digital out
user-programmable block
Definition:
Transmit:Digital-to-Analog
Receive :Analog-to-Digital
AR1
AX1
ALIS AC Signal Flow Graph
FRR
FRX
RFIX1
XFIX1
fixed filter block
THFIX
TH
fixed functional block
AX2
AR2
21
RFIX2
XFIX2
Analog Line Interface Solution
DAA
AR1
FRR
RFIX1
AR2
RFIX2
ADC
THFIX
TH
IMFIX
IM
AX1
FRX
XFIX1
AX2
XFIX2
DAC
Legend:
IMFIX
IM
Data Access Arrangement, Fixed Part
Amplification Receive Filter 1
Equalization Receive
Receive Filter Fixed Part 1
Amplification Receive Filter 2
Receive Filter Fixed Part 2
Analog-to-Digital Converter
Transhybrid Filter Fixed Part
Transhybrid Filter
Impedance Filter Fixed Part
Impedance Filter
Amplification Transmit Filter 1
Equalization Transmit
Transmit Filter Fixed Part 1
Amplification Transmit Filter 2
Transmit Filter Fixed Part 2
Digital-to-Analog Converter
PSB 4595 / PSB 4596
ALIS Implementation
ADC
ADC
DAC
Data Sheet 06.98
DAA
Tip/
Ring