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SCHEMATIC: 50 OHM REPEATER DEMO (NON-LCD)
14
Fig 12. IA4420 Transceiver Repeater Demo Non-LCD Schematic
6V
3,3V
Only rev. C or above!
P0.0
2
P0.1
1
P0.2
28
P0.3
27
P0.4
26
P0.5
25
P0.6
24
P0.7
23
P1.0
22
P1.1
21
P1.2
20
P1.3
19
P1.4
18
P1.5
17
P1.6
16
P1.7
15
P2.0
14
P2.1
13
P2.2
12
P2.3
11
P2.4
10
P2.5
9
P2.6
8
P2.7
7
P3.0/C2D
6
/RST/C2CK
5
VDD
4
GND
3
IC1
R1R2
5
3
4
1
SW1
6
R3
R4
R5
R6
D1
D2
D3
D4
C1
21
SJ1
R7
1
2
3
J1
1
2
3
DEBUG
C2
Q1
1
2
34
5
IC3
GND
IN
ON
OUT
POK
R8
C3 C4
1
2
BATTERY
C5 C6 C7
L1L3
C8C9
X1
SDI
1
SCK
2
NSEL
3
SDO
4
NIRQ
5
FSK/DATA/NFFS
6
DCLK/CFIL/FFIT
7
NINT/VDI
16
XTL/REF
9
CLK
8
VSS
11
RF2
12
RF1
13
VDD
14
ARSSI
15
NRES
10
IC2
TX
TX
RX
RX
SEL
SELIRQ
IRQ
SCK
SCK
MISO
MISO
MOSI
MOSI
FFS
FFS
FFIT
FFIT
INT/VDI
INT/VDI
ARSSI
ARSSI
NRES
NRES
C8051F311
GND
VCC
GND
820
820
820
820
Red
Green
Yellow
Red
VCC
GND
GND
VCC
100nF
GND
GND
1k
4,7nF
10MHz
GND GND
GND
VCC
GND
IA2112-3.3V
100k
2,2uF
2,2uF
VCC
1uF 100pF
10pF
VCC
GND
VCC
GND
GND
IA4420