Texas Instruments ADS1271EVM-PDK User Manual page 17

1
+5V
R1
24.9K 1%
D
R2
10K
U1
REF1004I-2.5
C3
1U
C6
1N C0G
S1
J4 AIN0P U5
R7
AUX1P 8
1 +
AUX1N
1K
2
AUXREF1P AIN0N R5
3
AUXREF1N 100K
4
R8
1
C
5 -
1K
HEADER-5 OPA1632
SW-DP3T
C7
1N C0G
C8
1N C0G
S2
J5 AIN1P U6
R9
AUX2P 8
1 +
AUX2N
1K
2
R6
AUXREF2P AIN1N
3
AUXREF2N 100K
4
R13
1
5 -
1K
SW-DP3T OPA1632
HEADER-5
C9
1N C0G
+AVDD U11
B
4 5
IN OUT
2 C5
GND
C4
1U TPS71550DCK 1U
J1
AIN0N 1 2 AIN0P
AN0- AN0+
AIN1N 3 4 AIN1P
AN1- AN1+
5 6
AN2- AN2+
7 8
AN3- AN3+
9 10
AGND AN4+
11 12
AGND AN5+
13 14
AGND AN6+
15 16
VCOM AN7+
17 18 REFN
AGND REF-
19 20 REFP
AGND REF+
ANALOGHDR
J1A (TOP) = SAM_TSM-110-01-L-DV-P
J1B (BOTTOM) = SAM_SSW-110-22-F-D-VS-K
A
1
2 3
+5V
2
6 OBREF
3
U4
OPA350UA
C1
1U 16V X7R
U2
1 2
C2
IN OUT
3 100U
GND
S3
REF3125AIDBZ
REFP
AUXREF1P
R10 1K
REFN
+AVDD AUXREF1N
C10
SW-DP3T
10U
3 S4
5 R15
-
2 47 AIN0P
VOCM
4 AUX1P
+
6
R16 47
AIN0N C20
C11
AUX1N
C13
10U 10U
-AVDD SW-DP3T
S5
R11
ADCAVDD2
REFP
1K
R12
AUXREF2P
1K
REFN
+AVDD AUXREF2N
C12
SW-DP3T
10U
3 S6 C22
5 R17 47 AMPOUT2P
-
2 AIN1P
VOCM
4 AUX2P
+
6 AMPOUT2N
R18 47
AIN1N
C17
C18
AUX2N
10U
10U
-AVDD SW-DP3T DVDD
R14
1K
U3 +3.3VD
1 2
IN OUT
3
GND
REF3125AIDBZ
+AVDD
+5V
2 3
4
DVDD FMTSEL
CLK
R3
47K
MODE1 DVDD
U20
FSYNC1
MODE0 2 4 MODE DOUT1
SN74LVC1G125DBV
C15 C16
FSYNC1
FSDIR
10U 10U
U7
ADCAVDD1 4 13 ADCDVDD1
AVDD DVDD
16 12 CLK
VREFP CLK
C26
5
MODE
100N
15 6 SCLK
VREFN FORMAT
7
SYNC/PDWN
1 10 FSYNC2
AINP DRDY/FSYNC
C24 1N 11
SCLK
2 8 DIN2
AINN DIN
C21 9 DIN1
DOUT
100P 100P
3 14 SYNC_1
AGND DGND
TP1 DIN2
C14
ADS1271IPW
CLK
U8
10U
4 13
AVDD DVDD
16 12
VREFP CLK
C27 5
MODE
100N 15 6 CLKRMODE
VREFN FORMAT
7 CLK
SYNC/PDWN
1 10 FSDIR
AINP DRDY/FSYNC
C25 1N 11 FSYNC1
SCLK
2 8
AINN DIN
C23 9 DOUT1
DOUT
100P 100P 3 14
AGND DGND
C19
ADS1271IPW
10U
ADCDVDD2
+5V J6
1 2 ADCAVDD1
3 4 ADCDVDD1
5 6 ADCAVDD2
7 8 ADCDVDD2
D1V8IN 9 10 DVDD DVDD U12
11 12 8
AGNDIN 13 14 5
DGNDIN 15 16 3
C29
7
JPR-2X8
1U
SN74LVC2G157DCT
J3
1 2
+VA -VA
3 4
+5VA -5VA
5 6 -AVDD
DGND AGND
7 8
+1.8VD VD1
9 10
+3.3VD +5VD
POWERHDR
J3A (TOP) = SAM_TSM-105-01-L-DV-P
J3B (BOTTOM) = SAM_SSW-105-22-F-D-VS-K
4
5
FORMAT
DVDD
S7
DVDD = FSYNC
FMTSEL
ALC_SLS121PC
GND = SPI
J7
FORMAT 1 2
MODE0 3 4 MODE
JPR-2X2
C30 100N
DVDD U15 +3.3VD
8 1 U9
VCCB VCCA
7 2 FSDIR CLKXMODE 7
B1 A1 1C VCC
6 3 CLKX_1 1
B2 A2 1A 1B
5 4 FSDIR 3
DIR GND 2C
FSOUT_1 5
2A 2B
SN74AVC2T45DCT
GND
DVDD U16 +3.3VD
SN74LVC2G66DCT
8 1
VCCB VCCA
7 2 FSOUT_1
B1 A1
R23
6 3 DOUT_1 DOUT
B2 A2
5 4
47
DIR GND
C31 100N
SN74AVC2T45DCT
R26
DVDD U17 +3.3VD FSR
6 1
47
VCCB VCCA
4 3 FSR_1
B A
5 2
DIR GND
SN74AVC1T45DBV
SYNC 1
DVDD U18 +3.3VD CLKX 3
1 6 CLKR 5
VCCA VCCB
3 4 7
A B
2 5 CLKRMODE FSOUT 9
GND DIR
11
SN74AVC1T45DBV DIN 13
DVDD U19 +3.3VD 15
1 8 17
VCCA VCCB
2 7 SYNC 19
A1 B1
3 6 DIN
A2 B2
4 5
GND DIR
SN74AVCH2T45DCT
1
3
U10 DVDD 5
7 8 7
1C VCC
1 2 SCLK FSR 9
1A 1B
3 11
2C
5 6 FSYNC2 DOUT 13
2A 2B
4 15
GND
17
SN74LVC2G66DCT 19
EXTCLK
OBCLKSEL
R21 R19
6 U13 +3.3VD
47K 470K
VCC A/B
1 1 4
Y A EOH VCC
2 OBCLK 3 2
Y B OUT GND
4 C28
G GND R20
CTS_CB3LV-3C-27.0000-T 10N
470K
ENGINEER M. P. ASHTON
DRAWN BY M. P. ASHTON
DOCUMENT CONTROL NO.6466898
SHEET 1 OF 1 FILE
5
6
REVISION HISTORY
REV ENGINEERING CHANGE NUMBER APPROVED
D
+3.3VD
8
R24
2 CLKX
47
R25
6 FSOUT
4
47
J2T
2 MODE0
CNTL GPIO0
4
CLKX DGND
6 MODE1
CLKR GPIO1
8 FSDIR
FSX GPIO2
10
FSR DGND
12
DX GPIO3
14
DR GPIO4
16
C
INT SCL
18
TOUT DGND
20
GPIO5 SDA
SERIALHDR
J2B
2
CNTL GPIO0
4
CLKX DGND
6
CLKR GPIO1
8
FSX GPIO2
10
FSR DGND
12 CLKRMODE
DX GPIO3
14 CLKXMODE
DR GPIO4
16
INT SCL
18
R4 R22
TOUT DGND
20
47K 47K
GPIO5 SDA
SERIALHDR
B
ti
A
DATA ACQUISITION PRODUCTS
HIGH-PERFORMANCE ANALOG DIVISION
SEMICONDUCTOR GROUP
6730 SOUTH TUCSON BLVD., TUCSON, AZ 85706 USA
TITLE
ADS1271EVM
SIZE B DATE 21 OCT 2004 REV C
6