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參數資料
| 型號： | AM79231 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Intelligent Subscriber Line Interface Circuit (ISLIC) |
| 中文描述： | 智能用戶線接口電路（ISLIC） |
| 文件頁數： | 17/28頁 |
| 文件大小： | 278K |
| 代理商： | AM79231 |
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Am79231 Data Sheet
17
Am79231 Transmission Specifications
No.
Item
Condition
Min
Typ
Max
Unit
Note
1
2
3
RSN input impedance
VTX output impedance
Max, AC + DC loop current
f = 300 to 3400 Hz
1
3
3
Active High Battery or Active
Low Battery
Active mode
–
10 dBm, 1 kHz, 0 to 70
°
C
T
A
=
–
40
°
C to 85
°
C
300 to 3400 Hz, relative to 1 kHz
T
A
=
–
40
°
C to 85
°
C
+3 dBm to
–
55 dBm
Reference:
–
10 dBm
T
A
=
–
40 to 85
°
C
–
10 dBm, 1 kHz
T
A
=
–
40
°
C to 85
°
C
300 to 3400 Hz, relative to 1 kHz
70
mA
3
4
5
Input impedance, A or B to GND
2-4 wire gain
70
135
–
13.83
–
13.78
–
14.13
–
14.18
–
13.98
–
13.98
dB
6
2-4 wire gain variation with fre-
quency
–
0.1
+.1
7
2-4 wire gain tracking
–
0.1
TBD
0
TBD
+0.1
6
8
4-2 wire gain
–
0.15
+0.15
9
4-2 wire gain variation with fre-
quency
4-2 wire gain tracking
–
0.1
+0.1
10
+3 dBm to
–
55 dBm
Reference:
–
10 dBm
300 Hz to 3400 Hz
0 dBm
11.2 dBm
–
12 dBm
–
0.8 dBm
RLOAD = 600
Active modes
R
L
= 600
2-wire
T
A
=
–
40 to 85
°
C
4-wire
2-wire
T
A
=
–
40 to 85
°
C
4-wire
L - T 200 to 1000 Hz
T
A
=
–
40
°
C to 0
°
C/70
°
C to 85
°
C
1000 to 3400 Hz
T
A
=
–
40
°
C to 0
°
C/70
°
C to 85
°
C
T - L 200 to 3400 Hz
L - T, IL = 0 50 to 3400 Hz
L - T 200 to 1000 Hz
T
A
=
–
40
°
C to 0
°
C/70
°
C to 85
°
C
50 to 3400 Hz
3.4 to 50 kHz
50 to 3400 Hz
3.4 to 50 kHz
F = 15 to 60 Hz Active mode
Freq = 12 kHz 2.8 Vrms
Freq = 16 kHz
metering load = 200
–
0.1
+0.1
6
11
Total harmonic distortion level
2-wire
4-wire
4-wire overload level at VTX
Idle channel noise
C-message
±1
–
50
–
40
–
48
–
38
dB
dB
dB
dB
Vp
3
12
Weighted
Psophometric
Weighted
+7
TBD
–
7
–
83
TBD
–
97
+11
–
79
dBrnC
dBmp
3
3
13
Longitudinal balance
(IEEE method)
Normal Polarity
58
53
53
48
63
58
dB
40
63
4
Reverse Polarity
50
48
14
PSRR (VBH, VBL)
25
45
40
45
35
30
4, 5
2, 3, 5
4, 5
2, 3, 5
3
15
PSRR (VCC)
25
16
17
Longitudinal AC current per wire
Metering distortion
20
mArms
40
dB
3
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