ATTL7591AB Просмотр технического описания (PDF) - Agere -> LSI Corporation
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ATTL7591AB Datasheet PDF : 8 Pages
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Data Sheet
October 1997
L7591 Subscriber Line Interface Circuit Protector
Applications
TIP
1
RPT
2
–VS
TRIP
CIRCUIT
8
PROTECTED
TIP
7
3
6
TRIP
CIRCUIT
RPR
RING
4
5
RPT and RPR must be properly selected for proper operation and/or response.
Figure 4. Standard Configuration
PROTECTED
RING
12-1632 (C)
IP
1
2
–48 V
TRIP
CIRCUIT
3
4
IP
TRIP
CIRCUIT
Figure 5. Test Circuit
8
VMEAS
7
6
VMEAS
5
12-1596 (C)
TIP
CARBON
BLOCK
RING
CARBON
BLOCK
PTC
PTC
RELAYS
1
8
6
L7591AB
SLIC
2
PROTECTOR
7
4
5
BATTERY
FEED*
VS
(–20 V TO –80 V)
*An example device is Lucent Technologies Microelectronics Group’s LB1276 High Balance SLIC.
12-1598 (C)
Figure 6. Fully Protected Electronic TIP-RING Interface (Not all devices needed in all applications)
Lucent Technologies Inc.
5
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