LUCL9218AAR-D AGERE [Agere Systems], LUCL9218AAR-D Datasheet - Page 6

• Manufacturer Part Number: LUCL9218AAR-D
• Description: Low-Cost Line Interface
• Manufacturer: AGERE [Agere Systems]

L9218A/G Low-Cost Line Interface
Functional Description
Table 2. Input State Coding
Table 3. Supervision Coding
6
0 = off-hook or ring trip.
1 = on-hook and no ring trip.
B0
1
1
0
0
B1
1
0
0
1
Powerup, Forward Battery. Normal talk and battery feed state. Pin PT is positive with respect to PR.
On-hook transmission is enabled. Low current limit is selected.
Powerup, Forward Battery. Normal talk and battery feed state. Pin PT is positive with respect to PR.
On-hook transmission is enabled. High current limit is selected.
Disconnect. The tip and ring amplifiers are turned off, and the SLIC goes to a high-impedance state
(>100 k ). Supervision outputs read on hook. Device will power up in this state.
Low-Power Scan. Except for off-hook detection, all circuits are shut down to conserve power. Pin PT
is positive with respect to pin PR. On-hook transmission is disabled.
NSTAT
State/Definition
0 = Normal device operation.
1 = Device is in thermal shutdown.
TSD
November 2001
Agere Systems Inc.
Data Sheet