參數資料
型號: AM79574
廠商: Advanced Micro Devices, Inc.
英文描述: Subscriber Line Interface Circuit
中文描述: 用戶線接口電路
文件頁數: 6/17頁
文件大?。?/td> 162K
代理商: AM79574
6
Am79574 Data Sheet
ELECTRICAL CHARACTERISTICS
Notes:
* P.G. = Performance Grade
2 grade performance parameters are equivalent to
1 performance parameters except where indicated.
Description
Test Conditions (See Note 1)
Min
Typ
3
Max
Unit
Note
4
4
4
Analog (V
TX
) output impedance
Analog (V
TX
) output offset
0
°
C to 70
°
C
1*
40
°
C to +85
°
C
1
35
30
40
35
+35
+30
+40
+35
20
35
mV
Analog (RSN) input impedance
Longitudinal impedance at A or B
Overload level
Z
2WIN
= 600 to 900
Transmission Performance, 2-Wire Impedance
2-wire return loss
(See Test Circuit D)
1
4
300 Hz to 3.4 kHz
4-wire
2-wire
3.1
+3.1
Vpk
2
300 Hz to 500 Hz
500 Hz to 2.5 kHz
2500 Hz to 3.4 kHz
26
26
20
dB
4, 11
Longitudinal Balance (2-Wire and 4-Wire, See Test Circuit C)
R
L
= 600
Longitudinal to metallic L-T, L-4
Longitudinal to metallic L-T, L-4
300 Hz to 3.4 kHz
300 Hz to 3.4 kHz
1*
48
52
dB
200 Hz to 1 kHz
normal polarity 0
°
C to +70
°
C
normal polarity
40
°
C to +85
°
C
reverse polarity
1 kHz to 3.4 kHz
normal polarity 0
°
C to +70
°
C
normal polarity
40
°
C to +85
°
C
reverse polarity
300 Hz to 800 Hz
300 Hz to 800 Hz
Active state
OHT state
2*
2
2
63
58
54
4
2*
2
2
58
54
54
40
42
4
Longitudinal signal
generation 4-L
Longitudinal current capability
per wire
Insertion Loss (2- to 4-Wire and 4- to 2-Wire, See Test Circuits A and B)
Gain accuracy
0 dBm, 1 kHz,
0 dBm, 1 kHz,
0 dBm, 1 kHz,
0 dBm, 1 kHz,
Variation with frequency
300 Hz to 3.4 kHz
Relative to 1 kHz
0
°
C to +70
°
C
40
°
C to +85
°
C
Gain tracking
+7 dBm to
55 dBm
0
°
C to +70
°
C
40
°
C to +85
°
C
1*
25
18
mArms
4
0
°
C to +70
°
C
40
°
C to +85
°
C
0
°
C to +70
°
C
40
°
C to +85
°
C
1*
1
0.15
0.20
0.1
0.15
+0.15
+0.20
+0.1
+0.15
dB
4
4
0.1
0.15
+0.1
+0.15
4
0.1
0.15
+0.1
+0.15
4
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