psb4595 ETC-unknow, psb4595 Datasheet - Page 25

• Manufacturer Part Number: psb4595
• Description: Analog Line Interface Solution Alis
• Manufacturer: ETC-unknow

5
5.1
Figure 12 Connection of ALIS-A to the Telephone Line
As shown in the figure, ALIS-A requires a minimum of components to complete the DAA:
- Protection circuit: not shown.
- Bridge: using Schottky diodes will improve the performance at low feeding conditions.
Recommended: Dual Schottky diode SIEMENS BAT 240A.
- Resistors for current sensing.
- Capacitors for AC coupling and VDD buffering.
Semiconductor Group
Configuration Overview
Connection to the Telephone Line
RING-AC
TIP
GNDA
VREF
CAP1
CAP2
RING
VDDA
SENS
VDD
T2G
T1G
TIP
-
AC
T2
T1
25
Analog Line Interface Solution
Configuration Overview
PSB 4595 / PSB 4596
Data Sheet 06.98
RING
TIP