am79m574 ETC-unknow, am79m574 Datasheet - Page 7

• Manufacturer Part Number: am79m574
• Description: Metering Subscriber Line Interface Circuit
• Manufacturer: ETC-unknow

ELECTRICAL CHARACTERISTICS (continued)
Balance Return Signal (4- to 4-Wire, See Test Circuit B)
Gain accuracy
Variation with frequency
Gain tracking
Group delay
Total Harmonic Distortion (2- to 4-Wire or 4- to 2-Wire, See Test Circuits A and B)
Total harmonic distortion
Total harmonic distortion
with metering
Idle Channel Noise
C-message weighted noise
Psophometric weighted noise
Single Frequency Out-of-Band Noise (See Test Circuit E)
Metallic
Longitudinal
Line Characteristics (See Figure 1) BAT = –48 V, R
Apparent battery voltage
Loop-current accuracy
Loop current—Tip Open state
Loop current—Open Circuit state R
Loop-current limit accuracy
Fault current limit, I
(I
AX
+ I
BX
)
Description
L
LIM
0 dBm, 1 kHz,
0 dBm, 1 kHz, –40°C to +85°C
0 dBm, 1 kHz,
0 dBm, 1 kHz, –40°C to +85°C
300 Hz to 3400 Hz
Relative to 1 kHz
0°C to +70°C
–40°C to +85°C
+7 dBm to –55 dBm, ref 0 dBm
0°C to +70°C
–40°C to +85°C
f = 1 kHz
0 dBm, 300 Hz to 3.4 kHz
+9 dBm, 300 Hz to 3.4 kHz
2-wire, 0°C to +70°C
2-wire, 0°C to +70°C
2-wire, –40°C to +85°C
4-wire, 0°C to +70°C
4-wire, 0°C to +70°C
4-wire, –40°C to +85°C
2-wire, 0°C to +70°C
2-wire, 0°C to +70°C
2-wire, –40°C to +85°C
4-wire, 0°C to +70°C
4-wire, 0°C to +70°C
4-wire, –40°C to +85°C
4 kHz to 9 kHz
9 kHz to 1 MHz
256 kHz and harmonics
1 kHz to 15 kHz
Above 15 kHz
256 kHz and harmonics
Active state
Active state
R
OHT state
Active state
A and B shorted to GND
L
L
= 600 Ω
= 0 Ω
Test Conditions (See Note 1)
0°C to +70°C
0°C to +70°C
L
SLIC Products
= 600 Ω and 900 Ω, R
–1*
–1
–1*
–1*
–1*
–1*
FEED
–6.00
–6.05
–5.95
–6.00
–0.15
–0.15
–0.1
–0.1
–7.5
Min
–20
47
= 800 Ω
–5.85
–5.85
–5.85
–5.85
Typ
–64
–55
–83
–83
–83
–83
–83
–83
–76
–76
–57
–70
–85
–57
5.3
+7
+7
+7
+7
+7
+7
50
+0.15
+0.15
–5.75
–5.65
–5.75
–5.70
+0.1
+0.1
+7.5
Max
–50
–40
–35
+15
+12
+15
+15
+12
+15
–75
–78
–75
–75
–78
–75
+20
130
1.0
1.0
53
dBrnC
dBmp
dBm
Unit
mA
dB
dB
µs
%
V
4, 5, 9
4, 5, 9
4, 5, 9
4, 5, 9
Note
4, 15
4, 11
3, 4
3, 4
3, 4
3, 4
4, 7
4, 7
4, 5
4, 5
10
—
—
—
3
3
4
4
4
7
7
7
7
7