Linx Technologies MDEV-GPS-R4 - Manual (Page 13)

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RECEIVER SECTION DISPLAY SECTION
POWER SUPPLY SECTION
HEADER SECTION
USB SECTION
B2
BATHLD-001
GND
VBACKUP
1
2
3
4
5
6
7
8
9
10
J4
HEADER 10
GND
GND
VCC
VBACKUP
1
2
3
4
5
6
7
8
9
10
J3
HEADER 10
GND
GND
TXM
RXM
EN/ON_OFF
1PPS
LED
RFPWRUP
USBDP
USBDM
GND
VCC
SUSP IND
RX IND
TX IND
485 TX
DTR
CTS
RTS
DATA OUT
DATA IN
DSR
DCD
RI
TXUSB
TXM
1
2
3
4
5
6
7
8 9
10
11
12
13
14
15
16
U2
SDM-USB-QS
GND
GND
D3 D2
GND GND
5V
1
DAT -
2
DAT+
3
GND
4
GSHD
5
GSHD
6
J2
USB-B
R2
220 R1
220
VCCU
+
GND
SW1
POWER SWITCH
GND
C1
220uF
GND
VCC
D1
DIODE400
J1
PWRJACK
GND
B1
BAT-AA-4
VCCU
GN
D
1
Vout
2
Vi
n
3 U1
VREG-3V
1
2
3
4
5
6
7
J7
HEADER 7
TXUSB
TXM
RXM
TXDISP
EN/ON_OFF
1PPS
RFPWRUP
+ C9
10uF
VCC
GND
5
2
4 3
1
VIN
GND
EN FB
SW
U3
MIC2288
C3
10uF
L1
10uH
R3
47.5k
R4
5k
C2
2.2uF
D4
GND
GND
GND
VCC13 VCC
C4
0.1uF
EN
+
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
J5
HEADER 30
GND
VCC13
C5
4.7uF
D7
D6
D5
D4
D3
D2
D1
D0
E/RD#
R/W#
BS0
BS1
CS#
D/C#
RES#
GPIO1
GPIO0
R5
560k
C6
1uF
VCC
VCC
GND
GND
GND
GND
GND
C7
0.1uF
GND
D5
D6
R6
50
GND
GND
VCC
VCC
VCOMH
VDDIO
VSL
IREF
VDD
VCI
VSS
+
D4 D3 D2 D1 D0 E/
RD
#
R/W# VCC
C8
10uF
GND
EN
D/C#
AVS
S
VSS VD
D
VDD
VSS
PMD5/RE5
PMD6/RE6
PMD7/RE7
PMA5/SCK2/CN8/RG6
PMA4/SDI2/CN9/RG7
PMA3/SDO2/CN10/RG8
MCLR
PMA2/SS2/CN11/RG9
VSS
VDD
C1IN+/AN5/CN7/RB5
C1IN-/AN4/CN6/RB4
C2IN+/AN3/CN5/RB3
C2IN-/AN2/SS1/CN4/RB2
PGC1/EMUC1/VREF-/AN1/CN3/RB1
PGD1/EMUD1/PMA6/VREF+/AN0/CN2/RB0
PG
C2
/E
M
UC2/AN6/
OC
FA/RB6
PG
D2
/E
MU
D2/AN7/RB7
AVDD U2
CT
S/
C1
OUT/
AN
8/RB
8
PMA7/C2OUT/AN9/R
B9
TM
S/
PMA13/CVREF/AN
10
/RB1
0
TD
O/
PMA12/AN11/R
B1
1
TCK/PMA11/AN12/R
B1
2
TDI/
PMA10/AN13/R
B1
3
PMA1/U2RTS/BCLK2/AN14/RB1
4
PMA0/A
N15/OCFB/CN12/RB15
PMA9/U2RX/SDA2/CN1
7/RF
4
PMA8/U2TX/SCL2/CN18/R
F5
U1TX/SDO1/RF3
U1RX/SDI1/RF2
U1RTS/BCLK1/SCK1/INT0/RF6
SDA1/RG3
SCL1/RG2
OSC1/CLKI/RC12
OSC2/CLKO/RC15
IC1/RTCC/INT1/RD8
IC2/U1CTS/INT2/RD9
IC3/PMCS2/INT3/RD10
IC4/PMCS1/INT4/RD11
OC1/RD0
SOSCI/CN1/RC13
SOSC0/T1CK/CN0/RC14
OC
2/RD
1
49
OC
3/RD
2
50
PM
BE/
OC
4/
RD
3
51
PMWR/OC5/IC5/CN13/RD
4
52
PMRD/CN14/
RD
5
53
CN
15
/RD6
54
CN
16
/RD7
55
VCAP/V
D
DCORE
56
EN
VR
EG
57
RF0
58
RF1
59
PMD0/RE0
60
PMD1/RE1
61
PMD2/RE2
62
PMD3/RE3
63
PMD4/RE4
64
U4
PIC24F128GA006
SW2
POWER SWITCH
VCC
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
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
D7
D6
D5
CS#
RES#
GND
GND GND
GND
VCC
VCC VCC
VCC
VPP
PGC
PGD TXDISP
TXM
SW3
GND
VCC
GND
Figure 12: Display Section Schematic