Schematics

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C C
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A A
COMPANY:
TITLE:
SIZE:
REV:
SHEET: OFA4
V0.1
1 1
NO:
DATE:
2021/4/24
DK-1101RH Wiress Keyboard
Siliten Electronics Co., Ltd
发行版本：
IN OUT
GND
U2
XT1781B25
BAT+
BAT-
GND
L3 10uH
C7
10UF
GND GND
VCC
GND
VBT
R2
1K
D1
LED_CAP
Y1
16MHZ
L1 2.7nH
C3
1.5pF
R1 1K
LPP
LED_LOW
BAT
LOW
*RD机密文件，不可外传*
2021-4-24-V0.1.SCH
GND
VBAT
C8
47UF
C1
1
C2
2
C3
3
C4
4
C5
5
C6
6
C7
7
C14
8
C13
9
C12
10
C11
11
C15
12
C10
13
J1
CON13
C8
14
C9
15
C0
16
C16
17
C17
18
R0
19
R1
20
R2
21
R3
22
R4
23
R5
24
R6
25
R7
26
J2
CON13
CAP
LOW
GND
GND
GND
VCC
VCC
VCC
VCC
C4
0.5pF
GNDGND
GND
GND
VCC
C5
0.1uF
GND
C6
1uF
GND
CAP
C1
C2
C3
C4
C5
C6
C7
C14
C13
C12
C11 C15
C10
C8
C9
C0
C16
C17
R0
R1
R2 R3 R4 R5
VDDL
VCC
VREF
R6
R7
PwrCheck
GND
C12
1UF
GND
GND
VREF
CS
SCK
VPP
DI01
PwrCheck
R5
910K
R4
220K
GND
低电压检测
C1
C2
C3
C4
C5
C6
C7
C14
C13
C12
C11
C15
C10
C8
C9
C0
C16
C17
R0
R1
R2
R3
R4
R5
R6
R7
PC4/URX/SEG28
1
PC5/UTX/SEG29
2
PD0/SSB/SEG8
3
PD1/SCK/SEG9
4
PD2/SDI/SEG10
5
PD3/SDO/SEG11
6
PD4/SEG12
7
PD5/SEG13
8
PD6/SEG14
9
PD7/SEG15
10
PE0/EINT2/SEG16
11
PE1/EINT3/SEG17
12
PE2/SEG18
13
PE3/SEG19
14
PE4SEG20
15
PE5/SEG21
16
PE6/SEG22
17
PE7/SEG23
18
PB0/EINT1/COM0
19
PB1/PWM1/COM1
20
PB2/TCC/PWM2/COM2
21
PB3/RSTN/COM3
22
PB4/OSCO/URX
23
PB5/OSCI/UTX
24
VSS
25
VDDL
26
VDD
27
VREF
28
PB6/SCL
29
PB7/SDA
30
PA0/INA+/SEG0
31
PA1/INB+/SEG1
32
PA2/SEG2
33
PA3/SEG3
34
PA4/SEG4
35
PA5/SEG5
36
PA6/SCL/SEG6
37
PA7/SDA/SEG7
38
PC0/PWM1/SEG24
39
PC1/PWM2/SEG25
40
PC2/PWM3/SEG26
41
PC3/PWM4/SEG27
42
GND
43
U1
YSM2145,DICE
CE
1
CSN
2
SCK
3
MOSI
4
MISO
5
IRQ
6
VDD_PLL
7
VSS_PLL
8
XTALP
9
XTALN
10
VDD_PA
11
RFN
12
RFP
13
VSS_RF
14
AVCC
15
VREF
16
VSS_ADC
17
DVDD
18
CDVDD
19
DVSS
20
DICE_GND
21
U3
HS6200,DICE
IRQ
SPI_MISO SPI_MOSI
SPI_CLK
SPI_SS
CE
CE
SPI_SS
SPI_MISO
SPI_MOSI
SPI_CLK
IRQ
GND
ANT1
C1
0.1uF
R3 0R
GNDGND
D2
LED_NUM
R7
1K
NUM
NUM
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