AHW1009 MG2475-RCU User
’s Guide
V1.0 Page:11/12
4.4. MG2475-RCU electrical schematics
Figure 4. MG2475-RCU schematic
P3_6
R8
0
ohm
This is GND
P0_2
LED
C1
1uF
VC
C
_3V
AN
T
1
AN
T
EN
N
A
1
ISP_R
X
D
KEY
_OU
T
1
SW
_12
MG2475
X
OSC
O
KEY_IN1
SW
_2
P1_0
L4
3.
9nH
/
1608
KEY
_I
N
1
R3
0
ohm
KEY MATRIX
X
OSC
I
ISP
SW
_6
VC
C
_3V
P1_0
R6
0
ohm
P3_4
KEY MATRIX
4x3
AVD
D
_R
F
1.
2V
VCC_3V
R2
10K
ISP_R
X
D
SW
_10
ISP_T
X
D
SW
_8
** Crystal **
VCC_3V
P1_1
R
a
d
io
p
u
ls
e
MG
2
4
7
5
U1
M
G2475-QF
N
40
1
2
3
34
4
6
5
7
8
9
11
16
12
13
14
15
17
20
18
19
31
21
22
24
23
25
26
27
28
29
30
32
33
35
39
38
37
40
10
36
41
AVD
D
_PLL3V
AVD
D
_R
F
3V
R
F
_P
RESETB
R
F
_N
R
BI
AS
AVD
D
_R
F
1.
2V
AVD
D
_AN
A3V
AT
EST
0
(P3[
3]
)
AT
EST
1
(P3[
2]
)
P1[7]
P1[1]
P1[6]
XOSCI_32K(P1[4])
XOSCO_32K(P1[3])
DVDD2_IO3V
P1[0]
P3[5]
P3[7]
P3[6]
NC
P3[
4]
P3[
1]
D
VD
D
_F
3V
P3[
0]
P0[
7]
P0[
6]
P0[
5]
P0[
4]
P0[
3]
P0[
2]
P0[1]
P0[0]
DVDD1_IO3V
XOSCI
XOSCO
DVDD_3V
AVDD_CP1.2V
MS
VDD
BTM_GND
P1_1
T
P1
GN
D
1
P1_1
** ISP **
XOSCI
P3_7
R5
0ohm
ISP_T
X
D
C6
30pF
KEY
_I
N
2
CD1
1
u
F
/1
0
%
10~20ppm apply
VC
C
_3V
R
BI
AS
P3_6
L2
3nH
KEY
_OU
T
1
L1
4.
7nH
P3_5
Use Murata Chip C,L Only
VCC_3V
P1_0
C4
0.
5pF
KEY_IN4
CD4
1
u
F
/1
0
%
VC
C
_3V
P0_3
D1
LED
M-Type Patch Antenna
ISP
P3_5
R4
1K
KEY
_OU
T
2
R1
510k
VC
C
_3V
SW
_9
KEY
_OU
T
2
L3
6.
2nH
R3, R6, R7, R8 = 2012 Type
R
F
_P
P3_4
KEY_IN3
CD2
1
u
F
/1
0
%
KEY
_I
N
4
R7
0
ohm
MG2475 INTERFACE
RESETB
VC
C
_3V
SW
_7
KEY
_OU
T
3
SW
_3
D
EBU
G_VC
C
_3V
P3_7
T
P2
VC
C
_BAT
1
Downloading & Debugging Port
R
F
_N
P0_3
AVD
D
_R
F
1.
2V
SW
_1
C2
1.
5pF
P0_4
C3
1.
5pF
VC
C
_3V
Key Interface
KEY_IN2
P0_2
C7
30pF
R
F
_P
SW
_11
KEY
_OU
T
3
M
G2475
1.
0
M
G2475-R
C
U
C
us
tom
2
2
T
ues
day
,
M
arc
h
24,
2015
T
it
le
Siz
e
D
oc
um
ent
N
um
ber
R
ev
D
at
e:
Sheet
of
SW
_4
UART Interface(Debug Port)
LED
R
ESET
B
J1
ISP
T
P/
1.
27m
m
(D
N
P)
1
2
3
4
5
6
R
F
_N
CD3
1
u
F
/1
0
%
SW
_5
KEY
_I
N
3
ANT1 1pin (IN_Out pin)
P0_4
Y1
3
2
M
:3
2
2
5
M
, C
L
=
1
6
p
F
4
1
3
2
G/
V
X
1/
C
X
2/
O
G/
G
ISP
XOSCO
C5
1.
5pF