u-blox EVK-ANNA-B112, Руководство пользователя

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3.3V REGULATED
BATTERY PROTECTION:
POWER SOURCE SELECTOR
CURRENT FLOW
NFC CAN CAUSE REVERSE
62132 3.3V VERSION
EXTERNAL SUPPLY
BY AN EXTERNAL SOURCE, USB ETC.
IF USED, THE 5V NET MUST BE SUPPLIED
USB
5-12 V
COIN CELL BATTERY 3V
LOW CURRENT LEAKAGE CAPS FOR SUPPLY HIGH CURRENT PEAKS
'ZERO VOLT DIODE' - PROTECTS FROM BACK CURRENT ON VBUS LINES
DMG2305UX
Fri Feb 16 12:12:25 2018
PAGE 5 OF 6
EVB-ANNA-B1
mwej
u-blox AG $Change: 605327
B
02
BASE_1
4
7
K
10K
P_CHANNEL_MOSFET
VBUS_MCU
BASE_1
100N
USB_HUB_DP
2U2 2U2
DCDC_IN
100K
VBUS_MCU
10M
1
0
0
N
VBAT
22U 4U7
1
0
0
N
3
N
3
1
0
U
VBAT
1
0
0
U
D
N
I
1
0
0
U
3V
VBAT VBAT
SGND=GNDA
SUSB_MICRO_B_4THGND
3V3_PI VDD_ANNA VDD_MCU
3V3
USB_HUB_DM
5V
POWER SUPPLY
5V
USB_DP_MCUCON
USB_DM_MCUCON
VBUS_MCU
VIN
U
S
B
M
IC
R
O
B
GNDA
DM
VUSB
GND
DP
N.C.
9
7
5
1
3
12
10
8
6
11
2
4
G
S D
Q1
D1
D6 J7
A
C
J8
VCC GND
I/O1 I/O1
I/O2 I/O2
B2
E2 C2
E1 C1
B1
J
1
7
R9
R1
C6
L2 L1
TP35
TP8
TP9
TP38
DRAWING TITLE :
C
A
T
A
N
F1
R
7
1
3
Q2
2
6
3
1
2
1
2
6
4 1
5
5
10
8
6
1
10
5
14
C
12
9
13
6 8
4
16
11
9
2
3
7
11
5
4
3
2
1
3
7
4
15
12
2
5
4
1
A
C A 1
3
2
USBLC6 2SC6
C
5
9
C
2
C
1
C
3
C
5
C
5
8
D3
J5
D4
C7
R5
C50
BT1
D2
E
D
C
B
A A
E
D
C
B
1 2 3 4 5 6 7 8
3 4 5 6 7 8 2
U-BLOX AG
DATE :
SWITZERLAND
1
THALWIL
GROUP :
DESIGN BY :
ICM:
PCB_VER.:
VERSION : PROJECT :
BI
BI
CON_PWR_03_SWITCH
PGND_2
PGND_1
PG
VOS
SW_3
SW_2
SW_1
PVIN_2
PVIN_1
2
1
2
3
1
U1
AGND
FB
FSW
DEF
SS/TR
EN
AVIN
FUSE
TPS6213X
A3