am79574 Advanced Micro Devices, am79574 Datasheet - Page 12

• Manufacturer Part Number: am79574
• Description: Subscriber Line Interface Circuit
• Manufacturer: Advanced Micro Devices

DC FEED CHARACTERISTICS
Notes:
1. Constant-resistance feed region:
2. Anti-sat –1 turn-on:
3. Anti-sat –2 turn-on:
4. Open circuit voltage:
5. Anti-sat –1 region:
6. Anti-sat –2 region:
7. Current Limit:
12
V
R
BAT
DC
Active state,
OHT state,
= 40 k
= –47.3 V
4
6
3
a. V
A
–V
V
V
V
I
I
V
5
B
V
L
L
AB
AB
AB
AB
AB
AB
(V
AB
=
=
AB
=
=
=
=
=
=
=
0.8
0.5
) Voltage vs. Loop Current (Typical)
0.377 V
0.377 V
50 I
1.077 V
39.39 I
39.39 V
31.8 V
2500
----------- -
2500
----------- -
Am79574 Data Sheet
R
R
–
DC
DC
L
–
BAT
BAT
R
--------- -
BAT
L
50
2
DC
------------ -
118.3
R
+
+
–
DC
12.538
20.48,
20.48 I
–
L
R
--------- -
200
DC
V
V
1
BAT
BAT
7
50.2 V
50.2 V
Active state
OHT state