Schematic

U37
U49
D2
1NH
U45
J1
U38
U36
J2
U39
D1
PIN_1
GND
OUT
VDD
1
EN
4
GND
AIN
GND
R_BIAS
DCOUPL
XOSC_Q2
XOSC_Q1
P2_3
P2_4
RF_N
RF_P
AVDD6
AVDD4
AVDD1
AVDD2
AVDD3
AVDD5
RESET
P0_7
P0_6
P0_5
P0_4
P0_3
P0_2
P0_1
P0_0
P1_7
P1_6
P1_5
P1_4
P1_3
P1_2
P1_1
P1_0
P2_2
P2_1
P2_0
DVDD_USB
USB_N
USB_P
DGND_USB
DVDD1
DVDD2
VIN
VOUT
VSS
PIN_1
RX
TX
USB_VCC
DC
DD
TX
RX
3.3V
1
2
3
4
CON254_4
RESET
DTR
1
CON1
USB_VCC
3
2
1
U48XC6206_3V3
1UF
C21
C9
1UF
3.3V
DTR
USB_P
R3
56K%1
C13
C2
C1
1P
0402BID
3NH
R1 1K%5 R2
1K%5
C7
12P
C8
12P
0402BID
0402BID
2NH
0402BID
2NH
C4
1P
C3
18P
C6
18P
C12
1UF
USB_N
C14
41
30
40
23
22
33
32
26
25
31
29
28
27
24
21
20
12
13
14
15
16
17
18
19
37
38
5
6
7
8
9
11
34
35
36
4
3
2
1
39
10
U5
CC2540
2
1
U41
ANTENNA
C19 C17 C18 C15 C16
2
3
1
4
U31
X3225
2 1
12
C11
P2_2
DD
DC
P1_0
P1_1
P1_2
P1_3
P1_4
P1_5
P1_6
P1_7
P0_0
P0_1
RT
RESET
1
2
3
4
CON254_4
1
CON1
USB_VCC