RTL8201N
Datasheet
Reception Without Error
Figure 15 shows an example of a packet transfer from PHY to MAC.
Figure 15. MDC/MDIO PHY to MAC Reception Without Error
9.3. Crystal Characteristics
Table 39. Crystal Characteristics
Parameter
Range
Nominal Frequency
Oscillation Mode
25.000MHz
Base wave
±50 ppm
Frequency Tolerance at 25°C
Operating Temperature Range
Equivalent Series Resistance
Drive Level
-10°C ~ +70°C
30 ohm Max.
0.1 mV
Load Capacitance
20 pF
Shunt Capacitance
7 pF Max.
Insulation Resistance
Test Impedance Meter
Aging Rate Per Year
Mega ohm Min./DC 100V
Saunders 250A
±0.0003%
9.4. Transformer Characteristics
Table 40. Transformer Characteristics
Parameter
Transmit End
1:1 CT
Receive End
1:1
Turn Ratio
Inductance (min.)
350 uH @ 8mA
350 uH @ 8mA
Note: The auto MDIX detection function requires a transformer with symmetrical TX/RX and Choke after transformer
placement, i.e. Pulse Engineer H1251 (refer to the suggested RTL8201N Schematic, which is available for download at
www.realtek.com.tw).
Single-Chip/Port 10/100 Fast Ethernet PHYceiver
With Auto MDIX
32
Rev. 1.2
ETC [ ETC ]
