DP83848TSQ/NOPB National Semiconductor, DP83848TSQ/NOPB Datasheet - Page 32

• Manufacturer Part Number: DP83848TSQ/NOPB
• Description: IC TXRX ETHERNET PHYTER 40-LLP
• Manufacturer: National Semiconductor
• Type: Transceiverr

Specifications of DP83848TSQ/NOPB

• Number Of Drivers/receivers: 1/1
• Protocol: Ethernet
• Voltage - Supply: 3 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 40-LLP
• Data Rate: 100Mbps
• Supply Voltage Range: 3V To 3.6V
• Logic Case Style: LLP
• No. Of Pins: 40
• Operating Temperature Range: -40°C To +85°C
• Msl: MSL 2 - 1 Year
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Data Rate Max: 10Mbps
• Driver Case Style: LLP
• For Use With: DP83848T-MAU-EK - BOARD EVALUATION DP83848T
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: DP83848TSQTR

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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.
CAPACITORS CLOSE TO
PLACE RESISTORS AND
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
A
Pulse H1102
Pulse H2019
Pulse J0011D21
Pulse J0011D21B
ll values are typical and are +/- 1%
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