Schematics

1
1
2
2
3
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4
D D
C C
B B
A A
Product Name
SCH Name
Revision
Page
Date
Drawing by
Authorize by
ITON TECHNOLOGY
Auditing by
RF
6
P11/P27/XIN32
1
P12/P26/XO32
32
LDO_IN
2
P15
31
LDO_OUT
3
P14/P38
30
VDDIF
4
P13/P28
29
VDDFE
5
VDDO
28
P24
27
VDDVCO
7
P25
26
VDDPLL
8
P32
25
XTALI
9
P8/P33
24
XTALO
10
P4
23
VDDC
11
P2
22
UART_RXD
12
P3
21
UART_TXD
13
P1
20
VDDM
14
P0
19
SDA
15
RST_N
18
SCL
16
TMC
17
U1 BCM20736_QFN32
L1
2.7nH
FB1
120@100MHZ
FB2
120@100MHZ
1 3
2 4
Y1 24MHz
C14
20pF
C15
20pF
C13
2.2pF
C16
1.8pF
C18
2pF
C20
NC
SCL SDA
UP_TX UP_RX REST
R6 10K
R4 10K R5 10K
VDDIO
C3 0.1uF
C10
0.1uF
C6
2.2uF
VDDIO
1P2VC
C7
0.01uF
C8
10pF
C9
0.01uF
C19
0.01uF
1P2V 1P2VRF
C11
1uF
1P2VC VDDIO
C1 0.1uF
R12 1.2pF
P32 P0 P1 P3 P2 P4 P8/P33 P11/P27 P25 P24 P13/P28 P14/P38 P15 P12/P26
Matching network by changing value
Lee
1.3 1
2015/10/18
GND
GND
UP_RX
UP_TX
SDA
SCL
P32
GND
GND
REST
P0 P1 P3 P2
P4 P8/P33
P25
P24
P13/P28
P14/P38
P15
P12/P26
P11/P27
VDDIO
GND
ANT
C4
0.1uF
VDDIO
CS
1
SO
2
WP
3
GND
4
SI
5
SCL
6
HOLD
7
VCC
8
U2 AT25DF011
SCL
P32
P8/P33
SDA
VDDIO
R2 10K
Flash
R8 10K
R9 10K R7 NC
GND
1
GND
2
UP_RX
3
UP_TX
4
SDA
5
SCL
6
P32
7
GND
8
GND
9
RESET
10
P0
11
P1
12
P3
13
P2
14
P4
15
P8/P33
16
P25
17
P24
18
P13/P28
19
P14/P38
20
P15
21
P12/P26
22
P11/P27
23
VDDIO
24
GND
25
脚位图