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ADVANCED COMMUNICATIONS & SENSING
HARDWARE DESCRIPTION
6
Board Schematic
INTERFACES
USB
J6
W4
1
VBUS
2
D-
3
D+
4
SHL D
5
GND
H2959CT-ND
VEXT
J8
GND
2
1
GND
PROG
J7
T1G
6
PGC/D-
PCLK
5
PGD/D+
DAT
4
GND
3
2
VDD
MCLR/VPP
VPP
1
PICK IT Serial
BOOT LOADER
R4
1K
12 MHz
Y1
2
Wboot
C9
22pF
GND
GND
INTERFACES
Analog
J1
AC2
1
AC3
2
AC6
3
AC7
4
AC4
5
AC5
6
J2
D0
4
MISO/READY
3
SS
2
D1
1
l
ACS - Revision 1.0
© Semtech Corp.
POWER
Ferrite
PGC/D-
F1
PGD/D+
C1
C2
C3
F2
4.7pF
4.7pF
10uF
GND
GND
GND
GND
R2
0R
R1
10K
VBOARD
U2
19
PGD/D+
RA0/I OCA0/D+/PGD
18
PGC/D-
RA1/I OCA1/D- /PGC
4
MCLR/VP P
RA3/I OCA3/MCLR/VPP
3
OSC2
RA4/AN3/I OCA3/OSC2/CLK OUT
2
OSC1
RA5/I OCA5/OSC1/CLKIN
13
HC49
RB4
RB4/AN10/I OCB4/SDI /SDA
12
RB5
RB5/AN11/I OCB5/RX/DT
11
RB6
RB6/I OCB6/SCK /SCL
1
10
RB7
RB7/I OCB7/TX/CK
C10
20
GND
VSS
22pF
PIC18F14K50-E/SS
Acquis ition
U1
16
6
AC2
VBATT
1
14
AC3
SCK L
2
10
AC6
SS
3
13
MOSI
AC7
4
11
AC4
MISO/READY
5
AC5
8
READY
12
15
D0
VPUMP
9
7
D1
VSS
VSS
S X8 724S
May 2011
Evaluation Kit for SX8724S Data Acquisition System
MCP1802
U3
1
VIN
VOUT
3
SHDN
C4
C5
C6
1uF
100nF
NC
GND
GND
GND
GND
RC0/AN4/C12I N+/INT0/Vref+
RC1/AN5/C12I N1-/INT1/Vref-
RC2/AN6/P 1D/C12I N2-/CVref/I NT2
RC3/AN7/P 1C/C12I N3-/PGM
RC4/P 1B/C12OUT/SRQ
RC5/CCP 1/P1A/T0CK I
RC6/AN8/SS/T13CK I /T1OSCI
RC7/AN9/SDO/T1OSCO
C13
VBATT
0.1uF
AGND
SCLK
AGND
SS
MOSI
MISO/READY
C14
READY
22nF
VPUMP
AGND
17
Page 9
SX8724SEVK
BOARD VOLTAGE SELECTOR
VBUS
W1
VLDO
W2
VBOARD
5
VEXT
W3
C7
C8
1uF
100nF
GND
GND
GATEWAY
VUSB
17
VUSB
VUSB
1
VDD
VBOARD
16
RC0
GND
15
RC1
14
RC2
7
RC3
6
RC4
5
RC5
8
RC6
9
RC7
VBATT
W2 5
V_supply
R7
10K
set_protocol
R5
10K
SS
W26
MOSI
W29
SCLK
W28
MISO/READY
W27
READY
W32
USER GUIDE
R3
470R
D1
Re d
GND
VBOARD
C11
C12
0.47uF
0.1uF
GND
W5
VBOARD
VBOARD
W6
OSC1
RA5
W7
OSC2
RA4
MCLR/VPP
W8
RA3
W9
RC5
RC5
W1 0
RC4
RC4
W1 1
RC3
RC3
W1 2
RC6
RC6
W1 3
RC7
RC7
W1 4
RB7
RB7
W1 5
RB6
RB6
W1 6
RB5
RB5
W1 7
RB4
RB4
W1 8
RC2
RC2
W1 9
RC1
RC1
W2 0
RC0
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