Datasheet

Evaluates: MAX3421E/MAX3420E
MAX3421E
U1
GPOUT4
GPOUT5
9
D5
R15 470Ω
GPOUT3GPOUT2GPOUT1GPOUT0GNDV
L
GPIN7
GPXINTGNDD-D+VBCOMP
PB1
V
CC
XI
GPOUT6
10
GPOUT7
11
RES
12
3
SCLK
FLAG
13
SS
14
FLAG
MISO
15
MOSI
GPIN6 GPIN5 GPIN4 GPIN3 GPIN2 GPIN1 GPIN0 XO
16
32 31 30
1
4
2
5
29 28 27 26 25
24 23 22 21 20 19 18 17
1
7
3.3V
2345678
R5 470Ω
C4 1μF
R13 470Ω
R14 470Ω
R16 470Ω
R12 470Ω
R11 470Ω
R10 470Ω
2 5 4 3 8
61
9 10
PB2
3
1
4
2
5
PB3
3
1
4
2
5
PB4
3
1
4
2
5
X1 X2
3
Y3
1
Y1
GND
2
VBUS
D+
3
D-
2
D+ D-
GND
4 1
J2
CON_USB-B
SHIELD
6
SHIELD
5
C12
18pF
C11
18pF
C2
1μF
C1
2.2μF
C3 2.2μF
3.3V
J2-5V
GND
GND
D-
2
D+
3
D-
D+
VBUS
1 4
J1
CON_USB-A
SHIELD
5
SHIELD
6
C5 2.2μF
R1 33Ω
R2 33Ω
R17 2.2kΩ
OUT
5
4
IN
1
2
J3
3
1
GND
2
ON
3
J1-5V
03_HGPX
19_HMOSI
C15 0.1μF
18_HMISO 20_HSSN 17_HSCK 13_HRESN
15_HINT
3.3V
MAX4793
U3
J1-5V
FLAG
+5V
22_PGPX
19_HMOSI 18_HMISO
17_HSCK
16_PINT
03_HGPX
20_HSSN 15_HINT 13_HRESN 12_PRESN 07_PSSN 06_PMOSI 05_PMISO 04_PSCK
J4-35 J4-36 J4-33 J4-34 J4-31 J4-32 J4-29 J4-30 J4-27 J4-28 J4-25 J4-26 J4-23 J4-24 J4-21 J4-22 J4-19 J4-20 J4-17 J4-18 J4-15 J4-16 J4-13 J4-14 J4-11 J4-12 J4-9 J4-10 J4-7 J4-8 J4-5 J4-6 J4-3 J4-4 J4-1 J4-2
J4
C6
2.2μF
3.3V
Y1 TAKES PLACE OF Y3, C11 & C12
1*
1*
1*
1*
Figure 2a. MAX3421 EV Kit-1 Schematic
MAX3421 Evaluation Kit-1
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