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參數(shù)資料
| 型號： | AM7953X-1DC |
| 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(shù)： | 6/20頁 |
| 文件大?。?/td> | 266K |
| 代理商： | AM7953X-1DC |
6
Am7953X Data Sheet
ELECTRICAL CHARACTERISTICS
Note:
* P.G. = Performance Grade (
–
2 performance parameters are equivalent to
–
1 performance parameters, except where indicated).
Description
Test Conditions (See Note 1)
Min
Typ
Max
Unit
Note
Analog (V
TX
) output impedance
Analog (V
TX
) output offset
3
4
0
°
C to +70
°
C
–
1*
–
40
°
C to +85
°
C
–
1
–
35
–
30
–
40
–
35
+35
+30
+40
+35
mV
4
4
Analog (RSN) input impedance
300 Hz to 3.4 kHz
1
20
4
Longitudinal impedance at A or B
35
Overload level
Z
2WIN
= 600
to 900
Transmission Performance, 2-Wire Impedance
4-wire
2-wire
–
3.1
+3.1
Vpk
2
2-wire return loss
(See Test Circuit D)
300 Hz to 500 Hz
500 Hz to 2.5 kHz
2.5 kHz to 3.4 kHz
26
26
20
dB
4, 10
Longitudinal Balance (2-Wire and 4-Wire, See Test Circuit C)
R
L
= 600
Longitudinal to metallic L-T, L-4
300 Hz to 3.4 kHz
–
1*
48
52
dB
Longitudinal to metallic L-T, L-4
200 Hz to 1 kHz:
Normal polarity
0
°
C to +70
°
C
Normal polarity
–
40
°
C to +85
°
C
Reverse polarity
–
2*
–
2
–
2
63
58
54
4
1 kHz to 3.4 kHz:
Normal polarity
0
°
C to +70
°
C
Normal polarity
–
40
°
C to +85
°
C
Reverse polarity
–
2*
–
2
–
2
58
54
54
4
Longitudinal signal generation 4-L
300 Hz to 800 Hz
300 Hz to 800 Hz
–
1*
40
42
Longitudinal current capability per wire Active state
OHT state
25
18
mArms
4
Insertion Loss (2- to 4-Wire and 4- to 2-Wire, See Test Circuits A and B)
Gain accuracy
0 dBm, 1 kHz
0
°
C to +70
°
C
0 dBm, 1 kHz
–
40
°
C to +85
°
C
0 dBm, 1 kHz
0
°
C to +70
°
C
0 dBm, 1 kHz
–
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
Variation with frequency
300 Hz to 3.4 kHz
(relative to 1 kHz):
0
°
C to +70
°
C
–
40
°
C to +85
°
C
–
0.1
–
0.15
+0.1
+0.15
4
Gain tracking
+7 dBm to
–
55 dBm:
0
°
C to +70
°
C
–
40
°
C to +85
°
C
–
0.1
–
0.15
+0.1
+0.15
4
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