參數(shù)資料
型號: L9500A
英文描述: High-Voltage Ringing SLIC for VolP Applications
中文描述: 高壓振鈴用戶接口應(yīng)用的福爾普
文件頁數(shù): 14/32頁
文件大?。?/td> 616K
代理商: L9500A
Preliminary Data Sheet
September 2001
High-Voltage Ringing SLIC for VoIP Applications
L9500A
14
Agere Systems Inc.
Electrical Characteristics
(continued)
Table 11. 2-Wire Port
Parameter
Min
105
65
10
8.5
Typ
15
Max
Unit
mAp
mAp
mArms
mArms
Tip or Ring Drive Current = dc + Longitudinal + Signal Currents
Tip or Ring Drive Current = Ringing + Longitudinal
Signal Current
Longitudinal Current Capability per Wire (Longitudinal current is indepen-
dent of dc loop current.)
Ringing Current (R
LOAD
= 1386
+ 40
μ
F)
Ringing Current Limit (R
LOAD
= 100
)
dc Loop Current—I
LIM
(V
BAT2
applied, R
LOOP
= 100
):
V
PROG
= 0
V
PROG
= Open
dc Current Variation
dc Feed Resistance (does not include protection resistors)
Open Loop Voltages:
Scan Mode:
|V
BAT1
| > 51 V |V
TIP
| – |V
RING
|
PR to Battery Ground
PT to Battery Ground
OHT Mode:
|V
BAT1
| > 51 V |V
TIP
| – |V
RING
|
PR to Battery Ground
PT to Battery Ground
Active Mode:
|PT – PR| – |V
BAT2
|
Ring Mode:
|PT – PR| – |V
BAT1
|
29
50
mArms
mAp
25
40
50
±8
mA
mA
%
44
41
5.75
51
49
6.25
4
56.5
56.5
56.5
56.5
7.75
V
V
V
V
V
V
V
V
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