參數(shù)資料
型號: L9313
英文描述: Line Interface and Line Access Circuit Full-Feature SLIC and Ringing for TR-57 Applications
中文描述: 線路接口和線路接入電路全功能SLIC和敲響訓(xùn)練班- 57應(yīng)用
文件頁數(shù): 18/40頁
文件大?。?/td> 746K
代理商: L9313
Data Sheet
September 2001
Full-Feature SLIC and Ringing Relay for TR-57 Applications
L9313 Line Interface and Line Access Circuit
18
Agere Systems Inc.
Electrical Characteristics
(continued)
ac Feed Characteristics
Table 8. ac Feed Characteristics
1. Set externally either by discrete external components or a third- or fourth-generation codec. Any complex impedance R1 + R2 || C between
150
and 1400
can be synthesized.
2. This parameter is not tested in production. It is guaranteed by design and device characterization.
3. VITR transconductance depends on the resistor from ITR to VTX. This gain assumes an ideal 6.34 k
, the recommended value. Positive cur-
rent is defined as the differential current flowing from PT to PR.
Parameter
Min
150
Typ
600
Max
1400
Unit
ac Termination Impedance
1
Total Harmonic Distortion (200 Hz
—4 kHz)
2
:
Off-hook
On-hook
Transmit Gain
3
f = 1004 Hz, 1020 Hz:
PT/PR Current to VITR
Receive Gain, f = 1004 Hz, 1020 Hz Open Loop:
RCVP or RCVN to PT
—PR (gain = 8)
RCVP or RCVN to PT—PR (gain = 2)
ac Feed Resistance (includes internal SLIC ac resistance and
break switch resistance)
Gain vs. Frequency (transmit and receive)
2
900
= 2.16
μ
F Termi-
nation, 1004 Hz Reference:
200 Hz—300 Hz
300 Hz—3.4 kHz
3.4 kHz—20 kHz
20 kHz—266 kHz
Gain vs. Level (transmit and receive)
2
0 dBV Reference:
55 dB to +3.0 dB
Idle-channel Noise (tip/ring) 600
Termination:
Psophometric
C-Message
3 kHz Flat
Idle-channel Noise (VTX) 600
Termination:
Psophometric
C-Message
3 kHz Flat
0.3
1.0
%
%
291
300
309
V/A
7.76
1.94
50
8
2
75
8.24
2.06
100
0.3
0.05
3.0
0
0
0
0.05
0.05
0.05
2.0
dB
dB
dB
dB
0.05
0
0.05
dB
82
8
77
13
20
dBmp
dBrnC
dBrn
82
8
77
13
20
dBmp
dBrnC
dBrn
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