參數(shù)資料
型號(hào): SI4021-A1-FT
廠商: Silicon Laboratories Inc
文件頁(yè)數(shù): 20/34頁(yè)
文件大小: 783K
描述: IC TX FSK 915MHZ 5.4V 16-TSSOP
標(biāo)準(zhǔn)包裝: 96
頻率: 433MHz,868MHz,915MHz
調(diào)制或協(xié)議: FSK,OOK
數(shù)據(jù)傳輸率 - 最大: 512kbps
功率 - 輸出: 8dBm
電流 - 傳輸: 24mA
數(shù)據(jù)接口: PCB,表面貼裝
天線連接器: PCB,表面貼裝
電源電壓: 2.2 V ~ 5.4 V
工作溫度: -40°C ~ 85°C
封裝/外殼: 16-TSSOP(0.173",4.40mm 寬)
包裝: 管件
產(chǎn)品目錄頁(yè)面: 585 (CN2011-ZH PDF)
其它名稱: 336-1622-5
Si4021
 
 
20
Data Transmit Sequence Through the FSK Pin
nSEL
SCK
SDI
instruction
Internal operations
a0, a1 = 0
ex, es, ea = 1
xtal osc. stable
Xtal osc staus
FSK
T X D A T A
synthesizer on, PLL locked, PA ready to transmit
synthesizer / PLL /
PA status
tsx *
tsp *
C 0 h
3 8 h
d o n ' t c a r e
P o w e r M a n a g e m e n t C o m m a n d
NOTE:
* See page 6 for the timing values
 
Data Transmit Sequence Through the SDI Pin
 
Note:
?    Do not send CLK pulses with the TX data bits, otherwise they will be interpreted as commands.
?    This mode is not SPI compatible, therefore it is not recommended in microcontroller mode.
?    If the crystal oscillator and the PLL are running, the t
sx
+t
sp
 delay is not needed.
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