am79231 ETC-unknow, am79231 Datasheet - Page 17

• Manufacturer Part Number: am79231
• Description: Intelligent Subscriber Line Interface Circuit Islic
• Manufacturer: ETC-unknow

Am79231 Transmission Specifications
No.
10
11
12
13
14
15
16
17
1
2
3
4
5
6
7
8
9
RSN input impedance
VTX output impedance
Max, AC + DC loop current
Input impedance, A or B to GND
2-4 wire gain
2-4 wire gain variation with fre-
quency
2-4 wire gain tracking
4-2 wire gain
4-2 wire gain variation with fre-
quency
4-2 wire gain tracking
Total harmonic distortion level
2-wire
4-wire
4-wire overload level at VTX
Idle channel noise
C-message
Weighted
Psophometric
Weighted
Longitudinal balance
(IEEE method)
Normal Polarity
Reverse Polarity
PSRR (VBH, VBL)
PSRR (VCC)
Longitudinal AC current per wire
Metering distortion
Item
f = 300 to 3400 Hz
Active High Battery or Active
Low Battery
Active mode
–10 dBm, 1 kHz, 0 to 70°C
T
300 to 3400 Hz, relative to 1 kHz
T
+3 dBm to –55 dBm
Reference: –10 dBm
T
–10 dBm, 1 kHz
T
300 to 3400 Hz, relative to 1 kHz
+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 Ω
Active modes
R
2-wire
T
4-wire
2-wire
T
4-wire
L - T
T
T
T - L
L - T, IL = 0 50 to 3400 Hz
L - T
T
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
Freq = 16 kHz
metering load = 200 Ω
A
A
A
A
A
A
A
A
A
L
=–40°C to 85°C
= –40°C to 85°C
= –40 to 85°C
= –40 to 85°C
= –40 to 85°C
= –40°C to 0°C/70°C to 85°C
= –40°C to 0°C/70°C to 85°C
= –40°C to 0°C/70°C to 85°C
= –40°C to 85°C
= 600 Ω
Am79231 Data Sheet
200 to 1000 Hz
Condition
1000 to 3400 Hz
200 to 3400 Hz
200 to 1000 Hz
2.8 Vrms
–14.13
–14.18
–0.15
–0.1
–0.1
–0.1
–0.1
Min
70
58
53
53
48
40
50
48
25
25
20
40
–13.98
–13.98
TBD
TBD
TBD
TBD
Typ
–83
–97
70
±1
+7
–7
63
58
63
45
40
45
35
30
1
3
0
–13.83
–13.78
+0.15
Max
+0.1
+0.1
+0.1
135
–50
–40
–48
–38
+11
–79
+.1
mArms
dBrnC
dBmp
Unit
mA
dB
dB
dB
dB
dB
Vp
dB
dB
Ω
Ω
2, 3, 5
2, 3, 5
Note
4, 5
4, 5
3
3
6
6
3
3
3
4
3
3
17