AM7943-2PC AMD (ADVANCED MICRO DEVICES), AM7943-2PC Datasheet - Page 7

• Manufacturer Part Number: AM7943-2PC
• Manufacturer: AMD (ADVANCED MICRO DEVICES)

Specifications of AM7943-2PC

• Lead Free Status / RoHS Status: Supplier Unconfirmed

ELECTRICAL CHARACTERISTICS (continued)
Total Harmonic Distortion (2- to 4-Wire or 4- to 2-Wire) (See Test Circuits A and B)
BAT = –48 V, R
Harmonic distortion
300 Hz to 3400 Hz
Idle Channel Noise (2-wire and 4-wire)
C-message weighted noise
Psophometric
weighted noise
Line Characteristics, Active State (See Figure 1)
Short loops, Active state
Long loops, Active state
OHT state
Standby state
Loop current
I
Ground-start signaling
(tip voltage)
Open circuit voltage
Power Dissipation, Normal Loop Polarity, BAT = –48 V
On hook, Open Circuit state
On hook, OHT state
On hook, Active state
On hook, Standby state
Off hook, OHT state
Off hook, Active state
Off hook, Standby state
L
LIM (Itip + Iring)
Description
L
= 900
2-wire level = 0 dBm
2-wire level = +7 dBm
0 C to +85 C
–40 C to 0 C
0 C to +85 C
–40 C to 0 C
BAT = –43 V, R
BAT = –48 V, R
BAT = –43 V, R
BAT = –48 V, R
BAT = –48 V, R
R
T
Tip Open, R
Disconnect, R
Tip Open, Bwire to GND
Tip Open, Bwire = V
Tip and ring shorted to GND
Active state
R
R
Active and OHT
BAT = –48 V
R
R
R
BAT = –48 V
R
BAT = –48 V
R
R
I
A
L
L
TIP
RING
TMG
TMG
L
L
L
L
= 70
= 600 , BAT = –48 V
= 300 , R
= 300 , R
= 300 , R
= 600 , T
=
to –48 V = 7.0 k
------------------------------ -
= Open
= 1700
Test Conditions (See Note 1)
to GND = 100
V
o
R
C
BAT
L
+
L
1800
A
–
= 0
TMG
TMG
TMG
L
LDC
LDC
LDC
LDC
LDC
= 25 C
3 V
= 0
SLIC Products
=
=
=
= 600
= 1.4 k
= 1.9 k
= 600
= 600
F I N A L
BAT
+ 6 V
T
A
= 25 C
0.7I
25.0
20.0
18.0
16.0
15.0
–7.5
40.5
Min
L
27.0
23.8
20.4
18.0
17.4
–5.0
42.0
1.25
0.57
0.68
Typ
–64
–55
–83
100
120
160
195
735
+7
+7
30
30
25
35
—
—
I
L
1050
1.3I
Max
29.0
20.0
1.45
0.85
–50
–40
+10
+12
–80
–78
100
100
130
210
260
280
1.0
70
85
—
—
L
dBrnC
dBmp
Unit
mW
mA
mA
mA
mA
dB
W
V
A
A
Note
—
—
—
—
4
4
4
7