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DS2149 Datasheet(PDF) 25 Page - Maxim Integrated Products

Part # DS2149
Description  5V T1/J1 Line Interface Unit
PDF  32 Pages
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

DS2149 Datasheet(HTML) 25 Page - Maxim Integrated Products

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DS2149
25 of 32
Figure 11-1. Basic Network Interface
Note 1: All resistor values are ±1%.
Note 2: The Rr resistors should be 50Ω each for T1 lines.
Note 3: C = 1
mF if using a 1:2 transformer; C = 2mF if using a 1:3 transformer.
RTIP
RRING
TTIP
TRING
RECEIVE
LINE
N:1
(larger winding
toward the network)
DS2149
C
VDD (21)
VSS (22)
0.1µF
VDD (15)
VSS (14)
0.1µF
+VDD
0.01µF
1.544MHz
MCLK
1:1
0.1µF
Rr
Rr
Rt
Rt
TRANSMIT
LINE
10µF
10µF



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