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參數(shù)資料
| 型號： | AM7945 |
| 廠商： | Advanced Micro Devices, Inc. |
| 英文描述： | Subscriber Line Interface Circuit |
| 中文描述： | 用戶線接口電路 |
| 文件頁數(shù)： | 14/18頁 |
| 文件大?。?/td> | 157K |
| 代理商： | AM7945 |
14
Am7945 Data Sheet
TEST CIRCUITS
I
L2-4
= 20 log (V
TX
/ V
AB
)
A. Two- to Four-Wire Insertion Loss
V
AB
R
L
2
R
L
2
A(TIP)
B(RING)
VTX
RSN
AGND
SLIC
B. Four- to Two-Wire Insertion Loss and Balance Return Signal
R
T
R
RX
V
L
V
AB
A(TIP)
B(RING)
VTX
RSN
AGND
SLIC
V
L
S2 Open, S1 Closed
L-T Long. Bal. = 20 log (V
AB
/ V
L
)
L-4 Long. Bal. = 20 log (V
TX
/ V
L
)
S2 Closed, S1 Open
4-L Long. Sig. Gen. = 20 log (V
L
/ V
RX
)
C. Longitudinal Balance
R
T
R
RX
V
RX
S2
R
L
2
R
L
2
S1
V
L
C
1
ω
C
<< R
L
Note:
Z
D
is the desired impedance (e.g., the characteristic
impedance of the line).
R
L
=
–
20 log (2 V
M
/ V
S
)
V
M
A(TIP)
B(RING)
VTX
RSN
AGND
SLIC
R
T1
R
RX
R
T2
Z
D
R
R
Z
IN
C
T1
V
S
D. Two-Wire Return Loss Test Circuit
V
AB
R
L
RSN
AGND
VTX
V
RX
R
RX
SLIC
B(RING)
A(TIP)
R
T
I
L4-2
= 20 log (V
AB
/ V
RX
)
TX
/ V
RX
)
相關(guān)PDF資料 |
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|---|---|
| AM79489 | SUBSCRIBER LINE INTERFACE CIRCUIT |
| AM79489-1JC | SUBSCRIBER LINE INTERFACE CIRCUIT |
| AM79489-2JC | SUBSCRIBER LINE INTERFACE CIRCUIT |
| AM79489-3JC | SUBSCRIBER LINE INTERFACE CIRCUIT |
| AM79489-4JC | SUBSCRIBER LINE INTERFACE CIRCUIT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AM7945JC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecommunication IC |
| AM7946-1JC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Subscriber Line Interface Circuit |
| AM7946-2JC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecommunication IC |
| AM7946-3JC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Subscriber Line Interface Circuit |
| AM7946-4JC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Subscriber Line Interface Circuit |
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