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VT6103 데이터시트(PDF) 12 Page - VIA Technologies, Inc.

부품명 VT6103
상세설명  Fast Ethernet 10 / 100 1-Port PHY / Transceiver
PDF  46 Pages
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제조업체  VIA [VIA Technologies, Inc.]
홈페이지  https://www.viatech.com/en/
Logo VIA - VIA Technologies, Inc.

VT6103 데이터시트(HTML) 12 Page - VIA Technologies, Inc.

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VT6103 - Fast Ethernet 10 / 100 PHY / Transceiver
Revision 1.1, April 15, 2002
-6-
Pin Descriptions
Technologies, Inc.
We Connect
We Connect
We Connect
We Connect
Resets, Clocks, Control and Status
Signal Name
Pin #
I/O
Signal Description
XI
46
I
Crystal In. Connect to 25 MHz crystal and to 22pF 5% to GNDOSC. Can alternately be
driven by an external clock source (3.3V voltage swing) with XO unconnected.
XO
45
O
Crystal Feedback. Connect to other side of 25 MHz crystal and to 22pF 5% to GNDOSC
BYPOSC / RXDV
9I
Bypass Oscillator. Connect to pullup to use an external oscillator instead of a crystal.
REXT
37
A
External Resistor. Connect 6.49K 1% resistor to GNDOSC.
SD /FXEN
34
I
Signal Detect. Used in fiber mode.
PD#
30
I
Power Down. Active low.
RESET#
48
I
Reset. Active low. Schmitt input for improved noise immunity..
Power and Ground
Signal Name
Pin #
I/O
Signal Description
VDD
7, 24
P
Digital I/O Power. 3.3V nominal (3.15V to 3.45V). For digital I/O
GND
8, 23
P
Ground. Connect to primary motherboard ground plane.
VCC
13
P
Core Power. 3.3V nominal (3.15V to 3.45V). For internal digital logic.
GND
12
P
Core Ground. Connect to primary motherboard ground plane.
VCCOSC
47
P
Oscillator Power. 3.3V. Isolate from digital supply voltage with a ferrite bead
GNDOSC
44
P
Oscillator Ground. Connect to primary motherboard ground plane.
VCCRX
31
P
Receiver Power. 3.3V. Isolate from digital supply voltage with a ferrite bead
GNDRX
35
P
Receiver Ground. Connect to primary motherboard ground plane.
VCCTX
42
P
Transmitter Power. 3.3V. Isolate from digital supply voltage with a ferrite bead
GNDTX
43
P
Transmitter Ground. Connect to primary motherboard ground plane.
GNDTXC
39
P
Transmit Clock Ground. Connect to primary motherboard ground plane.
VCCPLL
38
P
PLL Power. 3.3V. Isolate from digital supply voltage with a ferrite bead
GNDPLL
36
P
PLL Ground. Connect to primary motherboard ground plane.



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