PSB4596 Siemens Semiconductor Group, PSB4596 Datasheet - Page 15

• Manufacturer Part Number: PSB4596
• Description: Analog Line Interface Solution ALIS
• Manufacturer: Siemens Semiconductor Group

3
ALIS can be used in different modem applications to connect the data pump to the TIP/
RING wire.
3.1
For a modem data pump, the ALIS provides the front-end to the tip/ring.
Note: SI: Serial Interface
Figure 4 DSP-based Modem Application
Isolation is provided by a capacitor interface, without transformer. This allows very flat
frequency response over the entire voice band, even at low frequencies.
In V.90 Modem applications, the 50/60 Hz high-pass filter can be turned off.
Semiconductor Group
System Integration
ALIS with DSP-based Modem
Data Pump
V.34
V.90
SI
PSB 4596
ALIS-D
15
Analog Line Interface Solution
PSB 4595
ALIS-A
PSB 4595 / PSB 4596
System Integration
Data Sheet 06.98
Tip/Ring