- 您現(xiàn)在的位置：買(mǎi)賣IC網(wǎng) > PDF目錄367613 > LUCL8560EP-D Low-Power SLIC with Ringing PDF資料下載
參數(shù)資料
| 型號(hào)： | LUCL8560EP-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)： | 23/46頁(yè) |
| 文件大?。?/td> | 842K |
| 代理商： | LUCL8560EP-D |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)當(dāng)前第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)
Lucent Technologies Inc.
23
Data Sheet
April 2000
L8560 Low-Power SLIC with Ringing
Applications
(continued)
dc Applications
(continued)
12-2563.c (F)
Figure 23. SLIC 2-Wire Output Stage
In addition to the required peak signal level, the SLIC
needs about 2 V from each power supply to bias the
amplifier circuitry. It can be thought of as an internal
saturation voltage. Combining the saturation voltage
and the peak signal level, the required overhead can
be expressed as:
x 10
dBm/20
where V
SAT
is the combined internal saturation voltage
between the tip/ring amplifiers and V
BAT
(4.0 V typ.). R
P
(
) is the protection resistor value. Z
T/R
(
) is the ac
loop impedance.
Example 1, On-Hook Transmission of a Meter
Pulse:
Signal level: 2.2 Vrms into 200
35
protection resistors
I
LOOP
= 0 (on-hook transmission of the metering signal)
V
OH
= 4.0 +
(2.2)
= 8.2 V
Accounting for V
SAT
tolerance of 0.5 V, a nominal over-
head of 8.7 V would ensure transmission of an undis-
torted 2.2 V metering signal.
Adjusting Overhead Voltage
To adjust the open loop 2-wire voltage, pin DCR
(44-pin PLCC only) is programmed at the midpoint of a
resistive divider from ground to either –5 V or V
BAT
. In
the case of –5 V, the overhead voltage will be indepen-
dent of the battery voltage. Figure 24 shows the equiv-
alent input circuit to adjust the overhead.
12-2562.b (F)
Figure 24. Equivalent Circuit for Adjusting the
Overhead Voltage
The overhead voltage is programmed by using the fol-
lowing equation:
V
OH
= 7.1 – 18.18 V
DCR
= 7.1 – 18.18
Adjusting dc Feed Resistance
The dc feed resistance may be adjusted with the help
of Figure 25.
12-2560.c (F)
Figure 25. Equivalent Circuit for Adjusting the dc
Feed Resistance
R
dc
= 55
+ 705
= 55
+ 705
–
V
T/R
[Z
T/R
]
V
AMP
–
+
R
P
R
P
+
V
OH
V
SAT
1
Z
T/R
-----------
+
V
T/R
+
=
Λ
V
SAT
1
Z
T/R
-----------
+
1000
--------------
+
=
1
----------------
200
+
2
DCR
R
1
R
2
–5 V
5
–
+
R
2
R
1
---------------------
×
DCR
R
1
R
3
DCOUT
44-PIN PLCC
DCR
V
DCOUT
--------V
+
R
3
R
1
---------------------
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LUCL8567AP-D | SLIC for Peoples Republic of China Applications |
| LUCL8567AP-DT | SLIC for Peoples Republic of China Applications |
| LUCL8567AAU-D | GT 48C 48#16 SKT RECP |
| LUCL8567AAU-DT | Circular Connector; MIL SPEC:MIL-C-5015; Body Material:Metal; Series:GT; No. of Contacts:4; Connector Shell Size:36; Connecting Termination:Solder; Circular Shell Style:Square Flange Receptacle; Body Style:Straight |
| LUCL8574DP-D | L8574D Resistive Subscriber Line Interface Circuit(SLIC), Ring Relay,and Protector(SRP)for Long Loop and TR-57 Applications |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LUCL8560EP-DT | 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Power SLIC with Ringing |
| LUCL8560FAU-D | 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Power SLIC with Ringing |
| LUCL8560FAU-DT | 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Power SLIC with Ringing |
| LUCL8560GP-D | 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Power SLIC with Ringing |
| LUCL8560GP-DT | 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Power SLIC with Ringing |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。