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參數資料
| 型號： | L9312 |
| 英文描述： | Line Interface and Line Access Circuit Forward Battery SLIC and Ringing Relay for TR-57 Applications |
| 中文描述： | 線路接口和線路接入電路轉發電池SLIC和振鈴繼電器的訓練班- 57應用 |
| 文件頁數： | 12/40頁 |
| 文件大小： | 709K |
| 代理商： | L9312 |
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Data Sheet
July 2001
Forward Battery SLIC and Ringing Relay for TR-57 Applications
L9312 Line Interface and Line Access Circuit
12
Agere Systems Inc.
State Definitions
(continued)
Special States
(continued)
Battery
Out of Range
I
Not controlled via truth table inputs.
I
This mode is caused by a battery out of range; that is, the battery voltage rising above
or below a specified
threshold.
I
Upon reaching the specified high or low battery voltage, the device will enter an all-off mode.
I
Upon the battery returning to the specified normal operating range, the device will re-enter the state it was in
prior to the low battery shutdown.
I
Hysteresis is built in to prevent oscillation. In this mode, supervision output NSTAT is forced low (off-hook)
regardless of loop status or if the disconnect logic state is selected.
Absolute Maximum Ratings
(at T
A
= 25 °C)
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are abso-
lute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess
of those given in the operational sections of the data sheet. Exposure to absolute maximum ratings for extended
periods can adversely affect device reliability
.
Note: The IC can be damaged unless all ground connections are applied before, and removed after, all other connections. Furthermore, when
powering the device, the user must guarantee that no external potential creates a voltage on any pin of the device that exceeds the
device ratings. For example, inductance in a supply lead could resonate with the supply filter capacitor to cause a destructive overvoltage.
Parameter
Symbol
—
—
—
—
—
—
—
—
—
—
—
Min
–
0.5
–
75
—
—
–
0.5
—
–
40
5
—
—
—
Max
7.0
0.5
Unit
V
V
V
Vrms
V
°
C
°C
%
V
V
V
5 V dc Supplies (V
CC
)
High Office Battery Supply (V
BAT1
)
Auxiliary Office Battery Supply (V
BAT2
)
Ringing Voltage
Logic Input Voltage
Maximum Junction Temperature
Storage Temperature Range
Relative Humidity Range
Switch 1, 2, 3; Pole to Pole
Switch 4; Pole to Pole
Switch Input to Output
V
BAT1
to 0.5 V
110
V
CC
+ 0.5 V
165
125
95
320
465
320
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