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DP83848JSQ/NOPB 데이터시트(PDF) 9 Page - Texas Instruments

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부품명 DP83848JSQ/NOPB
상세설명  MII Serial Management Interface
PDF  84 Pages
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제조업체  TI1 [Texas Instruments]
홈페이지  http://www.ti.com
Logo TI1 - Texas Instruments

DP83848JSQ/NOPB 데이터시트(HTML) 9 Page - Texas Instruments

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DP83848H, DP83848J, DP83848K, DP83848M, DP83848T
www.ti.com
SNLS250E – MAY 2008 – REVISED APRIL 2015
4.9
10 Mb/s and 100 Mb/s PMD Interface
SIGNAL
TYPE
PIN #
DESCRIPTION
NAME
Differential common driver transmit output (PMD Output Pair). These differential outputs are
automatically configured to either 10BASE-T or 100BASE-TX signaling.
TD-, TD+
I/O
14, 15
In Auto-MDIX mode of operation, this pair can be used as the Receive Input pair.
These pins require 3.3-V bias for operation.
Differential receive input (PMD Input Pair). These differential inputs are automatically configured to
accept either 100BASE-TX or 10BASE-T signaling.
RD-, RD+
I/O
11, 12
In Auto-MDIX mode of operation, this pair can be used as the Transmit Output pair.
These pins require 3.3-V bias for operation.
4.10 Special Connections
SIGNAL
TYPE
PIN #
DESCRIPTION
NAME
RBIAS
I
20
Bias Resistor Connection. A 4.87-k
Ω 1% resistor should be connected from RBIAS to GND.
Power Feedback Output. Parallel caps, 10 µF (Tantalum preferred) and 0.1 µF, should be placed
PFBOUT
O
19
close to the PFBOUT. Connect this pin to PFBIN1 (pin 16) and PFBIN2 (pin 30). See
Section 7.2.1.3 for proper placement pin.
Power Feedback Input. These pins are fed with power from PFBOUT pin. A small capacitor of 0.1
PFBIN1
16
µF should be connected close to each pin.
I
PFBIN2
30
Note: Do not supply power to these pins other than from PFBOUT.
RESERVED I/O
8,9,10
RESERVED: These pins must be left unconnected.
4.11 Power Supply Pins
SIGNAL NAME
PIN #
DESCRIPTION
IOVDD33
1, 26
I/O 3.3-V Supply
IOGND
40
I/O Ground
DGND
29
Digital Ground
AVDD33
18
Analog 3.3-V Supply
AGND
13, 17
Analog Ground
Copyright © 2008–2015, Texas Instruments Incorporated
Pin Configuration and Functions
9
Submit Documentation Feedback
Product Folder Links: DP83848H DP83848J DP83848K DP83848M DP83848T



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