参数资料
型号: 4021-DKDB3
厂商: Silicon Laboratories Inc
文件页数: 20/34页
文件大小: 783K
描述: KIT DEV TEST EZRADIO SI4021 TX
标准包装: 1
附件类型: 测试卡,发射器,868MHz
适用于相关产品: EZRadio?
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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