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參數(shù)資料
| 型號(hào)： | LUCL8560GP-D |
| 英文描述： | Low-Power SLIC with Ringing |
| 中文描述： | 低功耗振鈴用戶接口 |
| 文件頁(yè)數(shù)： | 21/46頁(yè) |
| 文件大?。?/td> | 842K |
| 代理商： | LUCL8560GP-D |
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Lucent Technologies Inc.
21
Data Sheet
April 2000
L8560 Low-Power SLIC with Ringing
Applications
(continued)
Characteristic Curves
(continued)
12-3052 (F)
Note: V
BAT1
= –48 V; I
LIM
= 22 mA; R
dc1
= 55
.
Figure 20. L8560 Typical SLIC Power Dissipation
vs. Loop Resistance
12-2825.e (F)
Figure 21. Power Derating
dc Applications
Battery Feed
The dc feed characteristic can be described by:
where:
I
L
= dc loop current.
V
T/R
= dc loop voltage.
|V
BAT
| = battery voltage magnitude.
Note:
The L8560 has a battery switch circuit that
allows use of a primary battery, V
BAT1
, or an aux-
iliary battery, V
BAT2
. |V
BAT
| is the battery, V
BAT1
or
V
BAT2
, that is active. See the Battery Switch sec-
tion for more information.
V
OH
= overhead voltage. This is the difference between
the battery voltage and the open loop tip/ring
voltage.
R
L
= loop resistance, not including protection resistors.
R
P
= protection resistor value.
R
dc
= SLIC internal dc feed resistance.
The design begins by drawing the desired dc template.
An example is shown in Figure 22.
12-3050.k (F)
Note: V
BAT1
= –48 V; I
LIM
= 22 mA; R
dc1
= 55
.
Figure 22. Loop Current vs. Loop Voltage
LOOP RESISTANCE, R
LOOP
(
)
0
500
1000
2000
0
1000
1500
1500
500
S
AMBIENT TEMPERATURE, T
A
(
°
C)
20
40
60
140
180
0
500
1000
1500
2000
80
100
120
160
STILL AIR
32-PIN PLCC
300 cu. ft./min.
44-PIN PLCC
STILL AIR
44-PIN PLCC
250
750
1250
1750
I
L
R
L
+
R
dc
+
2R
P
---------------------------------
=
V
T/R
R
L
--------------------------------------------
R
dc
L
2R
P
+
+
=
0
10
20
50
0
20
30
40
50
LOOP VOLTAGE (V)
30
40
10
L
1
12.5 k
–1
R
dc1
I
LIM
TESTED
I
LIM
ONSET
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| LUCL8560GP-DT | 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Power SLIC with Ringing |
| LUCL8567AAU-D | 制造商:AGERE 制造商全稱:AGERE 功能描述:SLIC for Peoples Republic of China Applications |
| LUCL8567AAU-DT | 制造商:AGERE 制造商全稱:AGERE 功能描述:SLIC for Peoples Republic of China Applications |
| LUCL8567AP-D | 制造商:AGERE 制造商全稱:AGERE 功能描述:SLIC for Peoples Republic of China Applications |
| LUCL8567AP-DT | 制造商:AGERE 制造商全稱:AGERE 功能描述:SLIC for Peoples Republic of China Applications |
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