si4420 Silicon Laboratories, si4420 Datasheet - Page 5
si4420
Manufacturer Part Number
si4420
Description
Si4420 Universal Ism Band Fsk Transceiver
Manufacturer
Silicon Laboratories
Datasheet
1.SI4420.pdf
(32 pages)
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Typical Application
Transmit mode
el=0 in Configuration Setting Command
Transmit mode
el=1 in Configuration Setting Command
Receive mode
ef=0 in Configuration Setting Command
Receive mode
ef=1 in Configuration Setting Command
nRES
CLKin
P7
P6
P5
P4
P3
P2
P1
P0
VCC
nRES
VDI
SDI
SCK
nSEL
SDO
nIRQ
nFFS
FFIT
CLK
Typical application with FIFO usage
C1
1u
(optional)
(optional)
(optional)
(optional)
(optional)
100p
C2
1
2
3
4
5
6
7
8
10p
C3
Si4420
Connect to logic
RX Data output
TX Data input
nFFS input
16
15
14
13
12
11
10
9
Pin 6
high
TP
10MHz
2.2n
C4
X1
(optional)
RX Data clock
FFIT output
output
Pin 7
Antenna
-
-
PCB
Si4420
5
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