Intel LXD972M manual Guide, Vcc

Document Number: 303125 Revision Number: 002 Revision Date: October Preliminary User’s

4

A B

C

VCC

C14

0.1uF

D E

4

Figure 5.

22, 2004 Guide

3

MDC_1

MDIO_1

P1

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

R23

R24

R25

R27

R29

1R31

2R33

3R35

4
5
6
7
8
9
10
11
12	R40	50 1%
13
14	R41	50 1%
15	R42	50 1%
16	R43	50 1%
17	R44	50 1%
18
19
20

GND				VCC				TP15	TP16	TP17	TP18	TP19	TP20	TP21	TP22
			U1	20	SN74LVC244A			1	1	1	1	1	1	1	1
50 1%							R3
		18	1Y1	VCC	1A1	2
50 1%		16				4	R2
			1Y2		1A2
50 1%		14	1Y3		1A3	6	R1
50 1%		12				8	R0
			1Y4		1A4
50 1%		3				17	RV								R26
			2Y4		2A4
50 1%		5				15	RC								R28
			2Y3		2A3
50 1%		7				13	RE						R30		22
50 1%		9	2Y2		2A2	11	TC						R32		22
			2Y1		2A1							R34	22
											R36		22
				GND	1G	1						22
									R37
						19
					2G						22
									R38
				10					22
							GND		22
				GND
						TN
						T0
						T1
						T2
						T3							R45		22
						CL
	VCC					CR							R48		22
		SN74LVC244A
U3	20

					TP41	TP42	TP43
	U2B			1		1	1
33	RXD3	LED/CFG3		26				LED/CFG3
34
	RXD2
35				27				LED/CFG2
36	RXD1	LED/CFG2
	RXD0								3
37				28				LED/CFG1
40	RX_DV	LED/CFG1
	RX_CLK
41
	RX_ER
42				17				TPFIP
	TX_CLK		TPFIP
43
	TX_EN
44				18				TPFIN
45	TXD0	TPFIN
	TXD1
46				14				TPFOP
47	TXD2	TPFOP0
	TXD3
48				15				TPFON
1	COL	TPFON0
	CRS
	LXT972M_LQFP48C

Schematic: Intel
®
LXD972M	Intel

2

GND

MII 40 PIN

R46

R47

VCC

C15

0.1uF

50 1%	18	1Y1	VCC	1A1	2	TP24	TP25	TP26	TP27	TP28	TP29	TP30	R77 R78 R79 R80 R81
50 1%	16				4
		1Y2		1A2
	14	1Y3		1A3	6	1	1	1	1	1	1	1
	12	1Y4		1A4	8
	3				17								X X X X X
		2Y4		2A4
	5				15
		2Y3		2A3
	7				13
		2Y2		2A2		VCC
	9				11
		2Y1		2A1
			GND	1G	1								GND
					19
				2G
			10			GND

2

Transceiver	®
	LXD972M

17

1

GND

A B

GND

X=DO NOT INSTALL

C

Intel Corporation			1
9750 Goethe Road
Sacramento, CA 95827
Title	LXD972M LQFP48C DV/DEMO
Size	Document Number		Rev
B Intel(R) LXD972M Transceiver Demo Board MII PORT			A1
Date:	Monday, September 20, 2004	Sheet 3 of	5
D		E

Demo Board MII Port	Transceiver Demo
	Board (Board Rev A1)