DS33R41 Maxim Integrated Products, DS33R41 Datasheet - Page 102

• Manufacturer Part Number: DS33R41
• Description: Network Controller & Processor ICs Inverse-Multiplexing Ethernet Mapper wit
• Manufacturer: Maxim Integrated Products

10.24 Recommended Circuits
Figure 10-8. Basic Interface
Note 1: All resistor values are ±1%.
Note 2: Resistors R should be set to 60Ω each if the internal receive-side termination feature is enabled. When
Note 3: C = 1μF ceramic.
Refer to Application Note 324: T1/E1 Network Interface Design for more information on protected interfaces.
Table 10-13. Transformer Specifications
Turns Ratio 3.3V Applications
Primary Inductance
Leakage Inductance
Intertwining Capacitance
Transmit Transformer
DC Resistance
Receive Transformer
DC Resistance
this feature is disabled, R = 37.5Ω for 75Ω coaxial E1 lines, 60Ω for 120Ω twisted-pair E1 lines, or 50Ω for
100Ω twisted-pair T1 lines.
TRANSMIT
LINE
RECEIVE
LINE
SPECIFICATION
Primary (Device Side)
Secondary
Primary (Device Side)
Secondary
2:1
1:1
R
C
0.1μF
1:1 (receive) and 1:2 (transmit) ±2%
600μH (min)
1.0μH (max)
40pF (max)
1.0Ω (max)
2.0Ω (max)
1.2Ω (max)
1.2Ω (max)
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R
TTIP
TRING
RTIP
RRING
RECOMMENDED VALUE
Transceiver
DVDD
DVSS
RVDD
TVDD
RVSS
TVSS
0.1μF
0.1μF
0.1μF
0.01μF
10μF
10μF
+
+
VDD