參數(shù)資料
型號: W671310P
廠商: WINBOND ELECTRONICS CORP
元件分類: 模擬傳輸電路
英文描述: TELECOM-SLIC, PQCC28
封裝: PLASTIC, LCC-28
文件頁數(shù): 13/48頁
文件大小: 1344K
代理商: W671310P
W671300 SERIES
7.1.8. Understanding Phase Across the Ringing SLIC
7.1.8.1. 4-Wire to 2-Wire Phase
The phase of a signal through the device depends upon whether the source is driving the signal 4-
wire to 2-wire or 2-wire to 4-wire.
AUX
TIP
RING
I
M
V
TX
R
P
R
P
-
+
I
M
Z
L
+
-
R
+
-
R
SENSE
+ -
V
SA
= I
M 30
I
X
I
X
+
-
I
X
+
-
+
-
+
-
20
20
V
2W
+
-
W671300
V
TX
1:1
+
-
C
FB
VFB
-IN
TA
R
S
8k
3R
4R
I
X
SENSE
RECEIVE BLOCK
V
1
V
2
V
3
V
4
I M
+
-
I
M
+
-
R
SENSE
AMPLIFIER
FEED
AMPLIFIER
FEED
V
IN
FROM CODEC
R
IN
2-WIRE SIDE
4-WIRE SIDE
INPUT
AMPLIFIER
FIGURE 6: 4-WIRE TO 2-WIRE SIGNAL PHASE ACROSS THE DEVICE
- 20 -
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