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| 型號： | L9310 |
| 英文描述： | Line Interface and Line Access Circuit Full-Feature SLIC,Ringing Relay,and Test Access Device |
| 中文描述： | 線路接口和線路接入電路全功能用戶接口，振鈴繼電器，測試接入設備 |
| 文件頁數： | 21/60頁 |
| 文件大小： | 1053K |
| 代理商： | L9310 |
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Data Sheet
July 2001
Full-Feature SLIC, Ringing Relay, and Test Access Device
L9310 Line Interface and Line Access Circuit
Agere Systems Inc.
21
Electrical Characteristics
(continued)
Ring Trip Detector
Table 6. Ring Trip Detector
1. The ringing source may be either of the following:
a.) The ringing source consists of the ac and dc voltages added together (battery-backed ringing); the ringing return is ground.
b.) The ringing source consists of only the ac voltage (earth-backed ringing); the ringing return is the dc voltage.
2. NDET must also indicate ring trip when the ac ringing voltage is absent (<5 Vrms) from the ringing source.
3. Pretrip ringing must not be tripped by a 10 k
resistor in parallel with an 8 μF capacitor applied across tip and ring.
PPM
Table 7. PPM
1. PPM signal should be ac coupled into PPMIN.
2. This parameter is not tested in production, it is guaranteed by design and characterization.
Parameter
Min
±2.5
Typ
±3
Max
±3.5
Unit
V
Voltage at Input that will Cause Ring Trip After Appropriate
Zero Crossings
Voltage at Input that will Cause Immediate Ring Trip
Ringing Source
1
:
Frequency (f)
dc Voltage
ac Voltage
Ring Trip (NDET = 0)
2, 3
:
Loop Resistance
Trip Time
NDET Valid
±12
±15
±18
V
19
–39.5
60
20
—
—
28
–57
105
Hz
V
Vrms
2000
—
—
—
—
—
—
200
80
ms
ms
Parameter
Min
Typ
Max
Unit
PPM Source
1
:
Frequency (f1)
Frequency (f2)
Input Signal
Signal Gain (from PPMIN to amplifier outputs)
Harmonic Distortion
2
Isolation (nontest states)
Isolation (test modes)
11.88
15.80
—
9
—
65
50
12
16
—
10
—
—
—
12.12
16.20
1.0
11
5
—
—
kHz
kHz
Vrms
—
%
dB
dB
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