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SI4438 Datasheet(PDF) 2 Page - Silicon Laboratories

Part # SI4438
Description  Low active power consumption
PDF  44 Pages
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Manufacturer  SILABS [Silicon Laboratories]
Direct Link  http://www.silabs.com
Logo SILABS - Silicon Laboratories

SI4438 Datasheet(HTML) 2 Page - Silicon Laboratories

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Si4438
2
Rev 1.0
Functional Block Diagram
Product
Freq. Range
Max Output
Power
TX Current
RX Current
Si4438
425–525 MHz
+20 dBm
75 mA
14 mA
VCO
Loop
Filter
PFD / CP
Frac-N Div
30 MHz XO
LO
Gen
LNA
RF
PKDET
PGA
ADC
MODEM
FIFO
Packet
Handler
32K LP
OSC
Bootup
OSC
LBD
POR
IF
PKDET
Digital
Logic
PowerRamp
Cntl
PA
LDO
TX DIV
RXP
RXN
TX
VDD
TXRAMP
XOUT
XIN
nSEL
SDI
SDO
SCLK
nIRQ
LDOs
FBDIV
PA
VDD
GPIO0 GPIO1
GPIO2
GPIO3
SDN



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