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參數(shù)資料
| 型號： | AM79R70SC |
| 廠商： | ADVANCED MICRO DEVICES INC |
| 元件分類： | 模擬傳輸電路 |
| 英文描述： | Ringing Subscriber Line Interface Circuit |
| 中文描述： | TELECOM-SLIC, PDSO28 |
| 封裝： | SOIC-28 |
| 文件頁數(shù)： | 8/20頁 |
| 文件大?。?/td> | 270K |
| 代理商： | AM79R70SC |
8
Am79R70 Data Sheet
ELECTRICAL CHARACTERISTICS (CONTINUED)
Description
Test Conditions (See Note 1)
Min
Typ
Max
Unit
Note
Line Characteristics
I
L
, Loop-current accuracy
I
L
in constant-current region,
B2EN = 0
R
LDC
= 600
, RSGL = open
R
LDC
= 750
, RSGL = short
0.9I
L
I
L
1.1I
L
mA
I
L
, Long loops, Active state
20
20
21.7
I
L
, Accuracy, Standby state
0.8I
L
I
L
1.2I
L
I
L
= constant-current region
T
A
= 25
°
C
Active, A and B to ground
OHT, A and B to ground
18
27
39
I
L
LIM
55
55
110
4
I
L
, Loop current, Open Circuit state
I
A
, Pin A leakage, Tip Open state
I
B
, Pin B current, Tip Open state
V
A
, Standby, ground-start signaling
R
L
= 0
R
L
= 0
B to ground
A to
–
48 V = 7 k
,
B to ground = 100
100
μA
100
34
mA
–
7.5
–
5
V
4
V
AB
, Open Circuit voltage
Power Supply Rejection Ratio (V
RIPPLE
= 100 mVrms), Active Normal State
V
CC
V
NEG
V
BAT1
V
BAT2
Power Dissipation
42
7
50 Hz to 3400 Hz
33
50
dB
5
50 Hz to 3400 Hz
30
40
50 Hz to 3400 Hz
30
50
50 Hz to 3400 Hz
30
50
On hook, Open Circuit state
V
BAT1
V
BAT2
V
BAT1
V
BAT1
V
BAT1
or V
BAT2
V
BAT1
V
BAT2
48
100
mW
On hook, Standby state
55
80
9
On hook, OHT state
200
300
On hook, Active state
220
350
Off hook, Standby state
R
L
= 300
R
L
= 300
R
L
= 300
2000
2800
9
Off hook, OHT state
2000
2200
Off hook, Active state
Supply Currents
550
750
I
CC
, On-hook V
CC
supply current
Open Circuit state
Standby state
OHT state
Active state
–
normal
3.0
3.2
6.2
6.5
4.5
5.5
8.0
9.0
mA
I
NEG
, On-hook V
NEG
supply current
Open Circuit state
Standby state
OHT state
Active state
–
normal
0.1
0.1
0.7
0.7
0.2
0.2
1.1
1.1
I
BAT
, On-hook V
BAT
supply current
Open Circuit state
Standby state
OHT state
Active state
–
normal
0.45
0.6
2.0
2.7
1.0
1.5
4.0
5.0
I
L
V
--------------------------------------
10 V
–
R
L
400
+
=
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