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MAX5474 Evaluation Kit
+5V
R1
+5V
+5V
+3.3V
FB1
SHORT
+5V
0 Ω
C5
0.1 μ F
C6
0.1 μ F
C7
0.1 μ F
C8
0.1 μ F
(PC TRACE)
+3.3V
C10
1.5k Ω
Y2
6MHz
HFXIN
SEG13/P1.5
MAXQ2000
Y1
6
5
C17
0.1 μ F
P1
1
VBUS
2
SHIELD D-
3
SHIELD D+
4
GND
USB TYPE B
+5V U3
AT93C46A
8
VCC CS
6
ORG SK
7
N.C. D1
5
GND D0
C1
0.1 μ F
1
2
3
4
R4
2.2k Ω
C2
10 μ F
R7
27 Ω
R6
27 Ω
+5V
C3 C4
0.1 μ F 0.1 μ F
C20
3300pF
R5
+5V
C19
22pF
C18
22pF
6
8
7
5
4
27
28
32
1
2
31
30
AVCC
3V3OUT
USBDM
USBDP
RSTOUT
RESET
XTIN
XTOUT
EECS
EESK
EEDATA
TEST
3
VCC
AGND
29
26
VCC
U4
FT232BL
GND GND
9 17
13
VCCIO
TXD
RXD
RTS
CTS
DTR
DSR
DCD
RI
TXDEN
TXLED
RXLED
PWRCTL
PWREN
SLEEP
25
24
23
22
21
20
19
18
16
12
11
14
15
10
TXD
RXD
RTS
CTS
DTR
DSR
DCD
RI
R2
220 Ω
+2.5V
C9
0.1 μ F
+3.3V
D1
49
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
28
42
68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52
VDDIO
VDD
SEG11/P1.3
SEG12/P1.4
HFXOUT
SEG14/P1.6
SEG15/P1.7
P6.5/T0/WKOUT 1
SEG16/P2.0
P6.4/T0B/WKOUT 0
SEG17/P2.1
P6.3/T2/OW_IN
SEG18/P2.2 U2
P6.2/T2B/OW_OUT
SEG19/P2.3
P6.1/T1/INT13
SEG20/P2.4
P6.0/T1B/INT12
SEG21/P2.5
P5.7/MISO
SEG22/P2.6
P5.6/SCLK
SEG23/P2.7
P5.5/MOSI
SEG24/P3.0
P5.4/SS
SEG25/P3.1
P5.3/TX1/INT11
SEG26/P3.2
P5.2/RX1/INT10
SEG27/P3.3
32KIN
GND
32KOUT
GND
27
51
50
48
47
46
45
44
43
41
40
39
38
37
36
34
35
0.1 μ F
C11
6MHz 10pF
C12
10pF
R8
OPEN
CTS
DSR
R3
18 19 20 21 22 23 24 25 26 29 30 31 32 33
+3.3V
10k Ω
VDD
6
THREE-STATE
VCC
7
C21
0.1 μ F
3
VL
U7
GND
2
C23
0.1 μ F
C27
1 μ F
H1
JTAG
+3.3V
J1
HEADER 2X5
U2_59
U2_60
5
4
I VL1
I VL2
MAX3374E
O VCC1
O VCC2
8
1
U7_8
U7_1
TCK
TDO
TMS
H1-1
H1-3
H1-5
H1-7
H1-4
H1-6
H1-8
H1-2
RESET
RESET
TDO
TMS
J1-1
J1-3
J1-5
J1-2
J1-4
J1-6
DTR
RI
RTS
TDI
H1-9
H1-10
TDI
J1-7
J1-8
DCD
+3.3V
VDD
TCK
J1-9
J1-10
DSR
SHORT
6
THREE-STATE
VCC
7
C22
0.1 μ F
U2_61
3
5
4
VL
I VL1
I VL2
U8
MAX3374E
GND
O VCC1
O VCC2
2
8
1
C24
0.1 μ F
U8_8
C16
1 μ F
+5V
1
3
IN U5 OUT
SHDN MAX8511 GND
5
2
+3.3V
C15
10 μ F
C14
1 μ F
+5V
1
3
IN U6 OUT
SHDN MAX8511 GND
5
2
+2.5V
C13
10 μ F
Figure 3b. MAX5474 EV Kit Schematic (Sheet 2 of 2)
8
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