ds2149qt-r Maxim Integrated Products, Inc., ds2149qt-r Datasheet - Page 25
ds2149qt-r
Manufacturer Part Number
ds2149qt-r
Description
Ds2149 5v T1/j1 Line Interface Unit
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
1.DS2149QT-R.pdf
(32 pages)
- Current page: 25 of 32
- Download datasheet (574Kb)
Figure 11-1. Basic Network Interface
Note 1: All resistor values are ±1%.
Note 2: The R r resistors should be 50Ω each for T1 lines.
Note 3: C = 1mF if using a 1:2 transformer; C = 2mF if using a 1:3 transformer.
TRANSMIT
RECEIVE
LINE
LINE
toward the network)
(larger winding
N:1
1:1
0.1µF
R
r
R
R
t
t
R
r
C
25 of 32
TTIP
TRING
RTIP
RRING
DS2149
V
V
V
V
MCLK
DD
SS
DD
SS
(22)
(21)
(14)
(15)
0.01µF
0.1µF
0.1µF
1.544MHz
10µF
10µF
+V
DD
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