Schematics

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
2.75V
JTAG PROG
500mA trace
ANT0
nPWREN_INDY
INDY_RESET
DBG_RX
DBG_TX
TCXO_EN
T2R_CLK
T2R_FRM
UART_TXD
UART_RXD
nIRQ_INDY
nPWREN_RF
RF_FWD_DET
REV_PWR_DET
T2R_D0
ANT0
R2T_FRM
R2T_CLK
R2T_D0
nPWREN_RF
nPWREN_INDY
VDDOUT
R2T_D0
R2T_CLK
R2T_FRM
TDI
TDO
TCK
TMS
T2R_D0
T2R_CLK
T2R_FRM
nIRQ_INDY
TCXO_EN
RF_FWD_DET
REV_PWR_DET
ADVREF
ANT1
INDY_RESET
MCUVCCLOCAL
nRST_ARM7
JTAGSEL
UART_RXD
UART_TXD
DBG_TX
JTAGSEL
DBG_RX
TMS
TCK
TDO
TDI
ANT1
nRST_ARM7
Ambient_TEMP
GPIO2_IN1
GPIO3_IN2
GPIO1_OUT2
GPIO0_OUT1
PA_TEMP
GPIO1_OUT2
GPIO0_OUT1
GPIO2_IN1
GPIO3_IN2
P3.3V_MCU
P3.3V_MCU
P3.3V_MCU
P3.3V_MCU
VMAIN
P3.3V_MCU
P3.3V_MCU
P3.3V_MCU
P3.3V_MCU
ANT0 [5]
nPWREN_RF [6]
nPWREN_INDY [6]
R2T_FRM[3]
R2T_CLK[3]
R2T_D0[3]
T2R_FRM[3]
T2R_CLK[3]
T2R_D0[3]
nIRQ_INDY[3]
RF_FWD_DET[4]
REV_PWR_DET[4]
TCXO_EN [3]
ANT1 [5]
INDY_RESET [3]
Title
Size
Document Number Re v
Date: Sheet
of
<Doc> V3.2
CPU
B
27Thursday, December 24, 2020
Title
Size
Document Number Re v
Date: Sheet
of
<Doc> V3.2
CPU
B
27Thursday, December 24, 2020
Title
Size
Document Number Re v
Date: Sheet
of
<Doc> V3.2
CPU
B
27Thursday, December 24, 2020
C41
100nF
12
R75
47K
12
C12
1nF
12
R89
10K 1%
12
C89
10pF
12
R82 33
1 2
R35
47K
12
R31 33
1 2
C42
100nF
12
R69
1K 1%
12
C14
1nF
12
D2
LM431
3 1
2
C85
10nF
1 2
U20
ARM7 64QFN
ADVREF
1
GND
2
AD4
3
AD5
4
AD6
5
AD7
6
VDDIN
7
VDDOUT
8
PA17/AD0
9
PA18/AD1
10
PA21
11
VDDCORE
12
PA19/AD2
13
PA22
14
PA23
15
PA20/AD3
16
GND
17
VDDIO
18
PA16
19
PA15
20
PA14
21
PA13
22
PA24
23
VDDCORE
24
PA25
25
PA26
26
PA12
27
PA11
28
PA10
29
PA9
30
PA8
31
PA7
32
TDI
33
PA6
34
PA5
35
PA4
36
PA27
37
PA28
38
NRST
39
TST
40
PA29
41
PA30
42
PA3
43
PA2
44
VDDIO
45
GND
46
PA1
47
PA0
48
TDO
49
JTAGSEL
50
TMS
51
PA31
52
TCK
53
VDDCORE
54
ERASE
55
DDM
56
DDP
57
VDDIO
58
VDDFLASH
59
GND
60
XOUT
61
XIN
62
PLLRC
63
VDDPLL
64
R87
10K 1%
12
C91
10uF 6.3V
12
U24
LM60CIM3
+VS
1
VO
2
GND
3
C97
100nF
12
C203
100nF
12
C15
100nF
12
R68
470
1 2
L5
MMZ1608B601C
C20
100nF
12
R77
47K
12
C90
10pF
12
C19
100nF
12
L1
MMZ1608B601C
R74
47K
12
R21
47K
12
R84 33
1 2
C8
100nF
12
R32
10K 1%
12
C7
100nF
12
CN1
HEADER
5V1
1
5V2
2
GND1
3
GND2
4
NC
5
R1000_EN
6
TX
7
RX
8
nRESET
9
nBL/nPD
10
STATUS_LED
11
TDI
12
TDO
13
TCK
14
TMS
15
GND5
21
GND4
22
GND3
16
GPIO0
17
GPIO1
18
GPIO2
19
GPIO3
20
R73
1.5K 1%
1 2
C13
2.2uF
12
R33 33
1 2
C6
10uF 6.3V
12
R67
10K 1%
12
C18
NC
12
Y1
18.432 MHz
1
2
3
4
R76
NC
12
C88
1nF
1 2
U4
LM60CIM3
+VS
1
VO
2
GND
3
C23
100nF
12