Demo Board Schematic/Layout
A4910
A4910-DB
SCHEMATIC
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D
D
C
C
B
B
A
A
X1
:3
X1
:1
X1
:2
PGND
VB
AT
X2
:1
X2
:2
PGND
0R
01
0
R
27
0R
01
0
R
30
0R
01
0
R
31
0R
01
0
R
34
0R
01
0
R
35
0R
01
0
R
38
TP4
6
TP4
1
TP3
6
TP1
2
TP1
1
TP1
8
TP1
9
TP2
0
TP2
1
TP2
2
TP2
3
LM
29
36
DT
-5
.0
IN
GND
OUT
U1
J1
J3
PGND
VDD
X3
:1
X3
:2
PGND
10
u
+
C
1
PGND
PGND
DI
AG
17
ST
R
n
13
SC
K
14
SDI
15
SDO
16
AHI
18
AL
O
19
B
HI
20
B
LO
21
C
HI
22
C
LO
23
R
ESE
Tn
12
OPAP
24
OPAM
25
OPAO
26
VDD
10
CP1
5
CP2
4
AGND
9
PGND
6
VB
B
7
VR
EG
3
VB
R
G
8
C
A
2
GHA
48
SA
1
C
B
45
GHB
43
SB
44
GL
A
47
LSSA
46
GL
B
42
LSSB
41
C
C
40
GHC
38
GL
C
37
SC
39
LSSC
36
CSAP
33
CSAM
34
CSAO
35
CSBP
30
CSBM
31
CSBO
32
CSCP
27
CSCM
28
CSCO
29
C
OAST
n
11
A4
91
0 Sk
t
IC
1
10
u
+
C
4
PGND
J6
10
00
u
+
C
6
10
00
u
+
C
7
PGND
PGND
PGND
VDD
8
7
6
5
4
3
2
1
O
N
S1
TP2
6
TP2
9
TP3
2
TP3
5
PGND
VDD
X5
:6
X5
:5
X5
:4
X5
:3
X5
:2
X5
:1
PGND
10
0n
C
8
10
0n
C
9
10
0n
C
10
LSSA
LSSB
LSSC
SDO
SDI
SC
K
ST
R
n
X5
X4
X3
X2
X1
SDO
SDI
ST
R
n
SC
K
DI
AG
R
ESE
Tn
C
OAST
n
3k
9
R
39
3k
9
R
42
1n
C
14
10
K
R
43
10
K
R
44
75
k
R
40
PGND
82
k
R
41
3k
9
R
45
3k
9
R
48
1n
C
15
10
K
R
49
10
K
R
50
75
k
R
46
PGND
82
k
R
47
3k
9
R
51
3k
9
R
54
1n
C
16
10
K
R
55
10
K
R
56
75
k
R
52
PGND
82
k
R
53
CSAO
CSBO
CSCO
G1
G2
PGND
CSBP
CSAP
1n
C
17
6k
8
R
37
75
k
R
36
75
k
R
32
PGND
3K9 NF R2
9
3K9 NF R3
3
0R
R
2
TP3
TP4
10
0n
C
19
PGND
10
0n
C
18
PGND
1K
R
3
1K
R
4
1K
R
5
1K
R
6
1K
R
7
1K
R
10
1K
R
11
1K
R
13
1K
R
14
1K
R
15
1K
R
17
1K
R
18
1K
R
20
10
0
R
9
10
0
R
12
10
0
R
16
10
0
R
19
10
0
R
21
10
0
R
22
22
0n
C
11
22
0n
C
12
22
0n
C
13
IR
FR
24
05
Q1
IR
FR
24
05
Q2
IR
FR
24
05
Q3
IR
FR
24
05
Q4
IR
FR
24
05
Q5
IR
FR
24
05
Q6
10
0n
C
5
1K R2
8
D2
VDD
VDD
VDD
VDD
PGND
10
0K
NF R
26
VB
AT
SA
SB
SC
VSA
VSB
VSC
VSB
AT
OPAO
OPAP
OPAM
C
SAO
C
SB
O
C
SC
O
VSA
VSB
VSC
VSB
AT
OPAO
CSCM
CSCP
CSBM
CSAM
LSSA
LSSB
LSSC
1
X4
:1
2
X4
:2
3
X4
:3
4
X4
:4
5
X4
:5
6
X4
:6
7
X4
:7
8
X4
:8
9
X4
:9
10
X4
:1
0
11
X4
:1
1
12
X4
:1
2
13
X4
:1
3
14
X4
:1
4
15
X4
:1
5
16
X4
:1
6
17
X4
:1
7
18
X4
:1
8
19
X4
:1
9
20
X4
:2
0
21
X4
:2
1
22
X4
:2
2
23
X4
:2
3
24
X4
:2
4
25
X4
:2
5
26
X4
:2
6
GHA
GL
A
GHB
GL
B
GHC
GL
C
C
C
C
B
C
A
SA
SB
SC
AHI
AL
O
B
HI
B
LO
C
HI
C
LO
10
00
u
+
C
20
PGND
47
0n
C
3
10
0K
NF R
23
10
0K
NF R
24
10
0K
NF R
25
10
K
NF R
62
10
K
NF R
63
10
K
NF R
64
10
K
NF R
65
47
0K
R
1
47
0K
R
8
47
0K
R
57
47
0K
R
58
47
0K
R
59
47
0K
R
60
J2
J4
J7
OPAO
OPAO
OPAO
10
0n
C
21
PGND
10
u
+
C
2
Allegro
Microsystems
Inc
115
Northeast
Cutoff
Worcester
M
A
01606
USA
A4910
Demonstration
Board
0
Yi
Li
17th
May
2012
1
of
1
A2
EDC078R0
TIT
LE
:
R
EV:
AUT
HOR
:
DAT
E:
PC
B
:
SHE
ET
:
SI
ZE
:
