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參數(shù)資料
| 型號(hào)： | AM79R70 |
| 廠商： | Advanced Micro Devices, Inc. |
| 英文描述： | Ringing Subscriber Line Interface Circuit |
| 中文描述： | 振鈴用戶線接口電路 |
| 文件頁數(shù)： | 14/17頁 |
| 文件大小： | 271K |
| 代理商： | AM79R70 |
P R E L I M I N A R Y
14
Am79R70 Data Sheet
TEST CIRCUITS
R
T
R
RX
V
AB
V
L
R
L
2
I
L2-4
= 20 log (V
TX
/ V
AB
)
A. Two- to Four-Wire Insertion Loss
A(TIP)
B(RING)
AGND
VTX
RSN
SLIC
R
T
V
AB
A(TIP)
B(RING)
AGND
VTX
RSN
SLIC
R
L
R
RX
V
RX
I
L4-2
= 20 log (V
AB
/ V
RX
)
BRS = 20 log (V
TX
/ V
RX
)
B. Four- to Two-Wire Insertion Loss and Four- to Four-Wire Balance Return Signal
R
T
R
RX
R
L
2
R
L
2
V
RX
S1
C
S2
V
L
V
L
A(TIP)
B(RING)
AGND
VTX
RSN
SLIC
1
ω
C
<< R
L
L-4 Long. Bal. = 20 log (V
TX
/ V
L
)
L-T Long. Bal. = 20 log (V
AB
/ V
L
)
4-L Long. Sig. Gen. = 20 log (V
L
/ V
RX
)
C. Longitudinal Balance
R
L
2
V
AB
S2 Open, S1 Closed
S2 Closed, S1 Open
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| AM79R70_1 | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:Ringing Subscriber Line Interface Circuit |
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| AM79R70JC | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:Ringing Subscriber Line Interface Circuit |
| AM79R70SC | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:Ringing Subscriber Line Interface Circuit |
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