am79574 Advanced Micro Devices, am79574 Datasheet - Page 7

• Manufacturer Part Number: am79574
• Description: Subscriber Line Interface Circuit
• Manufacturer: Advanced Micro Devices

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
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
Loop current—Open Circuit
Loop current limit accuracy
Fault current limit, I
(I
AX
+ I
BX
)
Description
L
LIM
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
300 Hz to 3.4 kHz
Relative to 1 kHz
0 C to +70 C
–40 C to +85 C
+7 dBm to –55 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,
2-wire,
2-wire,
4-wire,
4-wire,
4-wire,
2-wire,
2-wire,
2-wire,
4-wire,
4-wire,
4-wire,
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
R
OHT state
Active state
A and B shorted to GND
L
L
= 600
= 0
Test Conditions (See Note 1)
–40 C to +85 C
0 C to +70 C
0 C to +70 C
–40 C to +85 C
0 C to +70 C
0 C to +70 C
–40 C to +85 C
0 C to +70 C
0 C to +70 C
–40 C to +85 C
0 C to +70 C
0 C to +70 C
L
SLIC Products
= 600
and 900
–1*
–1*
–1*
–1*
–1*
, R
FEED
–0.15
–0.20
–0.15
–0.15
–0.15
–0.1
–0.1
–0.1
–7.5
Min
–20
47
= 800
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
+0.20
+0.15
+0.15
+0.15
Max
+0.1
+0.1
+0.1
+7.5
–50
–40
+15
+12
+15
+15
+12
+15
–75
–78
–75
–75
–78
–75
+20
130
1.0
1.0
53
dBrnc
dBmp
dBm
Unit
mA
mA
dB
dB
%
%
V
s
4, 5, 9
4, 5, 9
4, 5, 9
4, 5, 9
Note
4, 7
4, 7
4, 5
4, 5
—
—
—
—
—
—
—
—
—
—
10
4
4
4
4
4
4
4
7
7
7