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ti
12500 TI Boulevard. Dallas, Texas 75243
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REV:
14-Feb-2005
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Revision History
REV
ECN Number
Approved
DAC7554 Rev A.Sch
DOCUMENTCONTROL #
+5VA
R6
10K
VSS
2
3
6
4
7
1
5
U2
Op Amp
VCC
R12
10K
W5
R8
0
VCC
+3.3VA
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
J4
OUTPUT HEADER
FSX
C5
10µF
DAC7554 EVM
A
J. PARGUIAN
VSS
+REFin
1
CLKX
DX
CLKR
FSR
DR
R15 0
R16 0
-REFin
W2
OUT_A1
OUT_C1
OUT_B1
OUT_D1
OUT_A2
OUT_B2
OUT_C2
OUT_D2
OUT_A
OUT_B
OUT_C
OUT_D
TP3
VOUT
U2_+IN
U2_-IN
U2_OUT
1
2
3
4
5
6
7
8
9
10
11 12
13 14
15 16
20
17
19
18
J2
Serial Header
TP4
VCC = +15V Analog Max
VDD = +2.7V to +5.5V Digital Max
VSS = 0V to -15V Analog Max
1
2
3
J1
DNP
1
2
3
J5
DNP
+5VA
VCC
1
2
3
4
5
6
7
8
9
10
J6
VSS
+5VA
-5VA
+5VD
+3.3VD+1.8VD
+3.3VA
GPIO0
GPIO1
SCL
SDA
GPIO2
GPIO3
GPIO4
GPIO5
W1
Vana
W11
W12
W13
+3.3VA
W6
TP2
TP5
TP6
R17 0
DIN
SCLK
R21
DNP
SYNC
+VREF
+VREF
R22
DNP
W3
1
2
3
R14
10K
R24
100
R25
DNP
1
VoutB
2
REFin
10
GND
3
VoutA
1
SYNC
9
VoutD
5
DIN
7
SCLK
6
VDD
8
VoutC
4
U1
DAC7554
CS
OUT
2
GND
3
IN
1
U3
REF3140
+5VA
FS
DX
CLKX
W4
W7
U3_OUT
Notes:
DNP = Do Not Populate
C1
0.1µF
C2
0.1µF
C9
0.01µF
C10
0.01µF
C12
1nF
C3
0.47µF
6468690
