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零件编号
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MC145425 查看數據表(PDF) - Motorola => Freescale
零件编号
产品描述 (功能)
生产厂家
MC145425
ISDN Universal Digital Loop Transceivers II
Motorola => Freescale
MC145425 Datasheet PDF : 16 Pages
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+5V
110
Ω
LO1
110
Ω
Tx
+5V
110
Ω
LO2
110
Ω
MASTER
OR
SLAVE
ISDN UDLT
Vref
+5V
0.1
µ
F
0.1
µ
F
+5V
Rx
5 k
Ω
LI
10 k
Ω
L1
TWISTED PAIR WIRE
L2
TRANSFORMER PARAMETERS
INDUCTANCE OF Tx: WINDING: 1.75 mH
TURNS RATIO: Tx L1 + L2 2:1
TURNS RATIO: Rx L1 + L2 4:1
DIODES: 1N4148 OR EQUIVALENT
Figure 4. Interface to Twisted Pair Wire
MOTOROLA
MC145421
•
MC145425
11
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