參數(shù)資料
型號(hào): AM79C30AJC
廠商: ADVANCED MICRO DEVICES INC
元件分類: 數(shù)字傳輸電路
英文描述: Digital Subscriber Controller⑩ (DSC⑩) Circuit
中文描述: DATACOM, DIGITAL SLIC, PQCC44
封裝: PLASTIC, LCC-44
文件頁(yè)數(shù): 78/101頁(yè)
文件大?。?/td> 1607K
代理商: AM79C30AJC
78
Am79C30A/32A Data Sheet
Figure 25.
System Interface to LIU
LOUT2
LOUT1
V
LOUT
+
LIN1
LIN2
R
2
R
1
R
3
R
4
R
L
R
L
C
L
C
L
V
(s-reference)
V
(s-reference)
+
2 : 1
2 : 1
Notes:
1. V
(s-interface)
: Transmitter output at the S-interface reference point.
2. R
L
is the termination impedence at the S interface.
3. C
L
is the effective capacitance at the S interface.
4. R
1
and R
2
are the transmitter output series resistors; their value depends upon the characteristics of the pulse transformer
(see Figure 28).
5. R
3
and R
4
are required for multipoint operation to prevent loading of the line when power is removed from the terminal.
09893H-19
LOUT2
LOUT1
+
50 ohms
V
LOUT
50 ohms
200 ohms
R
L
C
L
= 200 pF
High Mark
V
LOUT
50%
50%
P
W
a
b
c
Low Mark
Low Mark
b
High Mark
a
P
U
b
c
09893H-19
09893H-20
Figure 26.
Equivalent Test Load
Conditions
Figure 27.
Between LOUT2 and LOUT1 (Using the
Test Circuit in Figure 24)
Differential Output Signals
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