Schematics

1 2 34
A
B
C
D
4321
D
C
B
A
08
RF CircuitMain Circuit
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
19
20
21
22
23
24
25
26
18
J1
PIN26
C0
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
C11
C12
C13
C14
C15
R0
R1
R2
R3
R4
R5
R6
R7
OSCI
25
VSS
26
VPP
27
VCC
28
P4.1
29
P4.2
30
P0.0
31
P0.1
32
P0.2
33
P0.6
37
P0.7
38
P1.0
39
P1.1
40
P1.2
41
P1.3
1
P1.4
2
P1.5
3
P1.6
4
P1.7
5
VSS
6
P2.0
7
P2.1
8
P2.2
9
P2.3
10
P2.4
11
P2.5
12
P3.0
13
P3.1
14
P3.2
15
P3.3
16
P3.4
17
P3.5
18
P3.6
19
P3.7
20
P2.6
21
P2.7
22
P4.0
23
OSCO
24
P0.3
34
P0.4
35
P0.5
36
U1
NT2012-SE65K
C14
C13
C12
C11
C15
C10
C8
C9
C0
C16
C17
R0 R1 R2 R3 R4 R5 R6 R7
Num Lock
C1 C2
VCC
C3 C4 C5 C6 C7
R5
1K
NUM
LED
VCC
C16
C17
LED Display
Power Circuit

1*
2C9X5R
3X12*63*849S !"#$%:
16MHz+/-20ppm(+/-10ppm),12pF&
C4C5'()
4R5*+,-./&01()
ANT1
2.4G
TVCC
ANT
Matching Circuit
VCC
Y1
16MHZ+/-20PPM 12pF
CE
1
CSN
2
SCK
3
MOSI
4
MISO
5
DVSS
20
CDVDD
19
DVDD
18
VSS
17
VREF
16
AVCC
15
AVSS
14
RFP
13
RFN
12
VCC
11
IRQ
6
AVCC
7
AVSS
8
XTALN
9
XTALP
10
U2
HS6200
RF MISO
RFCS
RF MOSI
RF SCK
IRQ TVCC
TVCC
ANT
TVCC
C14
100nF
TVCC
RF MISO
RF SCK
RF MOSI
RFCS
IRQ
Cap Lock
C29
22uF
C10
0.1uF
VCC
BAT1
1*1.5V
Num Lock
LVD
CF1
NC
LVD
Scroll Lock
1
2
3
4
5
J2
RF MISO
RF MOSI
VCC
VPP
VPP
TVCC