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STW81101 데이터시트(PDF) 31 Page - STMicroelectronics

부품명 STW81101
상세설명  Multi-band RF frequency synthesizer with integrated VCOs
PDF  42 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
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STW81101 데이터시트(HTML) 31 Page - STMicroelectronics

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STW81101
SPI digital interface
31/42
6.3
Bits table
Table 20.
Bits
Serial Interface Address = 00h
Register name = ST1
Bit
Name
Description
[23]
R9
REFERENCE CLOCK DIVIDER RATIO
[22]
R8
[21]
R7
[20]
R6
[19]
R5
[18]
R4
[17]
R3
[16]
R2
[15]
R1
[14]
R0
[13]
PLL_A1
VCO Amplitude Control
[12]
PLL_A0
[11]
CPSEL2
Charge Pump output current Control
[10]
CPSEL1
[9]
CPSEL0
[8]
PSC_SEL
Prescaler Modulus select (‘0’ for P=16, ‘1’ for P=19)
[7]
INITCAL
test purpose only; must be set to ‘0’
[6]
SERCAL
Enable VCO calibration (see paragraph xxx)
[5]
SELEXTCAL
test purpose only; must be set to ‘0’
[4]
CAL4
test purpose only; must be set to ‘0’
[3]
CAL3
[2]
CAL2
[1]
CAL1
[0]
CAL0



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