- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄367613 > LUCL9214AAJ-DT Circular Connector; MIL SPEC:MIL-C-5015; Body Material:Metal; Series:GT; No. of Contacts:2; Connector Shell Size:24; Connecting Termination:Solder; Circular Shell Style:Square Flange Receptacle; Body Style:Straight PDF資料下載
參數(shù)資料
| 型號： | LUCL9214AAJ-DT |
| 元件分類： | 圓形連接器 |
| 英文描述： | Circular Connector; MIL SPEC:MIL-C-5015; Body Material:Metal; Series:GT; No. of Contacts:2; Connector Shell Size:24; Connecting Termination:Solder; Circular Shell Style:Square Flange Receptacle; Body Style:Straight |
| 中文描述： | 低成本振鈴用戶接口 |
| 文件頁數(shù)： | 27/46頁 |
| 文件大?。?/td> | 790K |
| 代理商： | LUCL9214AAJ-DT |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁當前第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁
Preliminary Data Sheet
October 2001
Low-Cost Ringing SLIC
L9214A/G
Agere Systems Inc.
27
Supervision
The L9214 offers the loop closure and ring trip supervi-
sion functions. Internal to the device, the outputs of
these detectors are multiplexed into a single package
output, NSTAT. Additionally, a common-mode current
detector for tip or ring ground detection is included for
ground key applications.
Loop Closure
The loop closure has a fixed typical 10 mA on- to off-
hook threshold in the active mode and a fixed 10 mA
on- to off-hook threshold from the scan mode. In either
case, there is a 2 mA hysteresis with V
CC
= 5.0 V and
with V
CC
= 3.3 V.
Ring Trip
The ring trip detector requires an external filter at the
input, minimizing external components. An R + R//C
combination of 75 k
and 133 k
//
1
μ
F, for a filter
pole at 3.3 Hz, is recommended for a 3 REN config-
uration. For a 5 REN configuration, a 150 k
and
100 k
//
1
μ
F (for a filter pole at 2.65 Hz) combination
is recommended.
The ring trip threshold is internally fixed and is indepen-
dent of battery voltage. The threshold, I
RT
= 20.1 mA.
Tip or Ring Ground Detector
In the ground key or ground start applications a com-
mon-mode current detector is used to indicate either a
tip- or ring-ground has occurred (ground key) or an off-
hook has occurred (ground start). The detection thresh-
old is set by connecting a resistor from ICM to V
CC
.
1000 * V
CC
/R
ICM
(k
) = I
TH
(mA)
where:
R
ICM
> 80 k
@ V
CC
= 3.3 V
R
ICM
> 150 k
@ V
CC
= 5.0 V
Additionally, a filter capacitor across R
ICM
will set the
time constant of the detector. No hysteresis is associ-
ated with this detector.
Power Ring
The device offers a ring mode, in which a power ring
signal is provided to the tip/ring pair. The standard
method of ringing is to perform trapezoidal ringing by
use of the state input pins. It is possible to select either
fast or slow slew rates to alter the crest factor of the
ringing signal. This allows designers to set the external
capacitors to a specific factor and change the ringing
frequency under software control while maintaining the
crest factor between 1.2 and 1.6 for the trapezoidal sig-
nal.
During the ring mode, it is also possible to supply a
pulse-width modulated, PWM, signal into the device
’
s
B1 input. This signal is used to produce the power ring
signal. This signal must be removed during nonring
mode states. The user may input any crest factor ring
signal using this method; thus, the device will support a
sine wave (crest factor 1.414) or a lower or higher crest
factor input for increased power efficiency ring signal.
Various crest factors are shown below.
12-3346a (F)
Note: Slew rate = 5.65 V/ms; trise = tfall = 23 ms; pwidth = 2 ms;
period = 50 ms.
Figure 10. Ringing Waveform Crest Factor = 1.6
12-3347a (F)
Note: Slew rate = 10.83 V/ms; trise = tfall = 12 ms; pwidth = 13 ms;
period = 50 ms.
Figure 11. Ringing Waveform Crest Factor = 1.2
TIME (s)
–
80
–
60
–
40
–
20
0
20
40
60
80
0.00
0.02 0.06
0.04 0.08
0.10
0.12
0.14
0.16
0.18
0.20
V
TIME (s)
–
80
–
60
–
40
–
20
0
20
40
60
80
0.00
0.02 0.06
0.04 0.08
0.10
0.12
0.14
0.16
0.18
0.20
V
相關PDF資料 |
PDF描述 |
|---|---|
| LUCL9214GAJ-D | Low-Cost Ringing SLIC |
| LUCL9214GAJ-DT | Low-Cost Ringing SLIC |
| LUCL9214GAU-D | Low-Cost Ringing SLIC |
| LUCL9214GAU-DT | Low-Cost Ringing SLIC |
| LUCL9214GRG-D | Planar E Core |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LUCL9214AAU-D | 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Cost Ringing SLIC |
| LUCL9214ARG-D | 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Cost Ringing SLIC |
| LUCL9214ARG-DT | 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Cost Ringing SLIC |
| LUCL9214GAJ-D | 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Cost Ringing SLIC |
| LUCL9214GAJ-DT | 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Cost Ringing SLIC |
發(fā)布緊急采購，3分鐘左右您將得到回復。