Datasheet

UG-442 Evaluation Board User Guide
Rev. C | Page 10 of 16
SDO
CLEAR_SELECT
CLEAR
FAULT
SDIN
SCLK
LATCH
DGND
DGND
DGND
0V +5V
RED
R17 100kΩ
C29 0.1µF
C33
22pF
C32 22pF
1
VBUS
2
D-
3
D+
4
IO
5
GND
SHIELD
SHIELD
J1
USB-MINI-B
R22
10kΩ
R16 100kΩ
R18
0Ω
C30
0.1µF
C21
0.1µF
C22
0.1µF
C23
0.1µF
C24
0.1µF
C25
0.1µF
C26
0.1µF
C27
0.1µF
Y2
24 MHz
C20 0.1µF
8
IN1
7
IN2
5
SD
4
GND
1
OUT1
2
OUT2
6
ERROR
3
NR
U3
ADP3303-3.3
R23
1kΩ
D1
C18
0.1µF
R20
10kΩ
R19
10kΩ
R21
10kΩ
R24
2.2kΩ
R25
2.2kΩ
C34
0.1µF
1
A0
2
A1
3
A2
4
VSS
5
SDA
6
SCL
7
WP
8
VCC
U5
24LC64
50
PD5/FD13
51
PD6/FD14
52
PD7/FD15
54
CLKOUT
1
RDY0/*SLRD
2
RDY1/*SLWR
4
XTALOUT
5
XTALIN
8
D+
9
D-
13
IFCLK
14
RSVD
15
SCL
16
SDA
18
PB0/FD0
19
PB1/FD1
20
PB2/FD2
21
PB3/FD3
49
PD4/FD12
48
PD3/FD11
47
PD2/FD10
46
PD1/FD9
45
PD0/FD8
44
*WAKEUP
42
RESET
40
PA7/*FLD/SLCS
39
PA6/*PKTEND
38
PA5/FIFOADR1
37
PA4/FIFOADR0
36
PA3/*WU2
35
PA2/*SLOE
34
PA1/INT1
33
PA0/INT0
31
CTL2/*FLAGC
30
CTL1/*FLAGB
29
CTL0/*FLAGA
25
PB7/FD7
24
PB6/FD6
23
PB5/FD5
22
PB4/FD4
3
AVCC
7
VCC
11
VCC
17
VCC
27
VCC
32
VCC
43
VCC
55
VCC
6
AGND
10
GND
12
GND
26
GND
28
GND
41
GND
53
GND
56
GND
U4
CY7C68013-CSP
C31
2.2µF
+
C19
10µF
20%
1
IN
2
S1A
3
S1B
4
D1
5
S2A
6
S2B
7
D2
8
GND
9
D3
10
S3B
11
S3A
12
D4
13
S4B
14
S4A
15
EN
16
VDD
U7
ADG774
1
IN
2
S1A
3
S1B
4
D1
5
S2A
6
S2B
7
D2
8
GND
9
D3
10
S3B
11
S3A
12
D4
13
S4B
14
S4A
15
EN
16
VDD
U8
ADG774
A
B
LK7
J8-1
J8-2
J8-3
J8-4
J8-5
J8-6
J8-7
J8-8
J8-9
J8-10
J7-1 J7-2
C55
0.1µF
+
C56 10µF
A
B
LK8
C57 0.1µF
A B
LK1
A B
LK2
A B
LK6
C28 0.1µF
3.3V
3.3V
3.3V3.3V
3.3V
PA3 PA2
CS_ADC
USB_POWER
3.3V
3.3V
3.3V 3.3V
3.3V
PGND
PGND
PGND
PGNDPGND
PGND
PGND
PGND
PGND
PGND
PGND
PGND
PGND
PGNDPGND
PGND
PGND
PGND
PGND
PGND
LATCH SCLK SDIN FAULT CLEAR CLEAR_SELECT SDO
DVCC
DVCC
DVCC
PA5 PA6 PA7 PA3 PA2
FD7
DOUT_ADC FD7
PA5 PA6 PA7
PGND
DGND
DGND
DGND
DGND
DGND
5V
SDIN_ADC SCLK_ADC
PGND
DVCC
DVCC
DGND
DGND
FD8
FD8
EXT_5V
DVCC
PGND
08230-006
Figure 7. AD5422 LFCSP Evaluation Board Schematic of the Controller Circuitry