Datasheet

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A
B
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D
6
54321
D
C
B
A
ti
12500 TI Boulevard. Dallas, Texas 75243
Title:
SHEET: OF:
FILE:
SIZE:
DATE: REV:
14-Jul-2006
Drawn By:
Engineer:
5
6
7
U2B
OPA2340
3
2
1
84
U2A
OPA2340
Vref
AVdd
TP8
C10
0.1uF
C7
0.1uF
C8
10uF
A0+
A0-
A1-
A1+
B0+
B0-
B1-
B1+
C0+
C0-
C1-
C1+
DC_D0
DC_D1
DC_D2
DC_D3
DC_D4
DC_D5
DC_D6
DC_D7
DC_D8
DC_D9
DC_D10
DC_D11
DC_D12
DC_D13
DC_D14
DC_D15
DC_ARE#
DC_TOUT
DC_INTa
HOLD_B#
HOLD_A#
ADD
RESET#
AVdd DVdd
DC_TOUTa
HOLD_C#
HOLD_B#
HOLD_A#
HOLD_C#
TP10
TP12
EXT. REF.
C38
0.1uF
C37
0.1uF
C46
0.1uF
AVdd
ADC Bypass
DVdd
C45
0.1uF
W3
R23
10K
W7
BVdd
BA0
CS#
BA2
BA1
R22
10K
W6
BVdd
J7
W8
R31
49.9
CLK
Tom Hendrick
Tom Hendrick
BA
ADS7864 Modular Evaluation Module
2
3
TP21
TP24 TP16
TP13
TP14
TP15
R18
10K
R17
10K
R16
10K
TP17
HOLD B# = FSX1 (GP OUT)
HOLD A# = CLKR1 (GP OUT)
HOLD C# = FSR1 (GP OUT)
RESET# = DX1 (GP OUT)
FD = DR1 (GP IN)
McBSP 1 Setup
BVdd
TP22
ADC Data Bus
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30
31 32
J6
Parallel Control
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
J5
EVM_A0
EVM_A1
EVM_A2
EVM_A3
DC_CSa
A B C
W4
BVdd
C12
0.1uF
R19
10K
DC_D0
DC_D1
DC_D2
DC_D3
DC_D4
DC_D5
DC_D6
DC_D7
DC_D8
DC_D9
DC_D10
DC_D11
DC_D12
DC_D13
DC_D14
DC_D15
DC_AWE
DC_ARE#
DC_TOUT
DC_INTa
ADC Control
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
J1
RESET#
1B1
2
1B2
3
2B1
5
2B2
6
3B1
11
3B2
10
4B1
14
4B2
13
1A
4
2A
7
3A
9
4A
12
/OE
15
S
1
168
U3
SN74CBT3257PWR
EVM_A0
EVM_A1
EVM_A2
BA0
BA1
BA2
EVM_A3
DC_CSa
CS#
M_A0
M_A1
M_A2
M_A0
M_A1
M_A2
C3
0.1uF
TP2
+VIN
D2
Green
R26
2K
C2
0.1uF
TP1
-VIN
C5
10uF
C6
10uF
D1
Green
R27
2K
+VA
-VA
+5VD
1 2
3 4
5 6
7 8
9 10
JP1
+3.3VD +5VA +VA -VA -5VA +VD1+1.8VD
AGNDDGND
R15
0 ohm
C11
0.1uF
TP20
+3.3VD
W5
BVdd
+5VD
C13
10uF
FB2
FB3
FB4
DVdd
C48
0.1uF
TP9
AVdd
C41
0.1uF
TP3
C15
10uF
C9
10uF
+5VD
+5VA
FB5
FB1
R36
49.9
W10
GP(CLKR)
GP(FSX)
GP(FSR)
GP(CLKR)
GP(FSX)
GP(FSR)
A0+
48
A0-
47
A1+
37
A1-
38
B0+
46
B0-
45
B1+
39
B1-
40
C0+
44
C0-
43
C1+
41
C1-
42
+Va
36
+Va
1
+Vd
21
AGND
2
AGND
35
DGND
20
REFIN
34
REFOUT
33
BUSY#
19
CLK
22
RD#
23
CS#
24
RESET#
32
A2
29
A1
30
A0
31
HOLD_A#
27
HOLD_B#
26
HOLD_C#
25
BYTE
28
BD15
3
BD14
4
BD13
5
BD12
6
BD11
7
BD10
8
DB9
9
DB8
10
DB7
11
DB6
12
DB5
13
DB4
14
DB3
15
DB2
16
DB1
17
DB0
18
U4
ADS7864Y
24
53
U6
SN74X1G04
BVdd
1A
2
1Y
3
147
1OE
1
2A
5
2Y
6
2OE
4
3A
9
3Y
8
3OE
10
4A
12
4Y
11
4OE
13
U7
SN74AHC125
BVdd
A0
A1
A2
A3
A0
A1
A2
A3
C39
0.1uF
L: A = B1
H: A = B2