DP83848HSQ National Semiconductor, DP83848HSQ Datasheet - Page 32

• Manufacturer Part Number: DP83848HSQ
• Description: IC, TRANSCEIVER, ENET PHYTER, 40LLP
• Manufacturer: National Semiconductor

Specifications of DP83848HSQ

• Data Rate: 100Mbps
• No. Of Ports: 1
• Ethernet Type: IEEE 802.3u
• Supply Current: 92mA
• Supply Voltage Range: 3V To 3.6V
• Operating Temperature Range: -40°C To +125°C
• Digital Ic Case Style: LLP
• No. Of: RoHS Compliant
• Interface Type: MII Serial, RMII
• Rohs Compliant: Yes

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5.0 Design Guidelines
5.1 TPI Network Circuit
Figure 11 shows the recommended circuit for a 10/100
Mb/s twisted pair interface. To the right is a partial list of
recommended transformers. It is important that the user
realize that variations with PCB and component character-
istics requires that the application be tested to ensure that
the circuit meets the requirements of the intended applica-
tion.
PLACE RESISTORS AND
CAPACITORS CLOSE TO
THE DEVICE.
RD+
RD-
TD-
TD+
49.9
49.9
49.9
49.9
Figure 11. 10/100 Mb/s Twisted Pair Interface
Vdd
Vdd
0.1 F
0.1 F
32
Vdd
All values are typical and are +/- 1%
Pulse H1102
Pulse H2019
Pulse J0011D21
Pulse J0011D21B
NOTE: CENTER TAP IS PULLED TO VDD
*PLACE CAPACITORS CLOSE TO THE
0.1µF*
0.1µF*
TRANSFORMER CENTER TAPS
COMMON MODE CHOKES
MAY BE REQUIRED.
1:1
1:1
T1
RD-
RD+
TD-
TD+
RJ45