參數資料
型號: STW81100ATR
廠商: 意法半導體
英文描述: MULTI-BAND RF FREQUENCY SYNTHESIZER WITH INTEGRATED VCOS
中文描述: 多波段射頻頻率合成器帶有集成的VCO
文件頁數: 19/23頁
文件大?。?/td> 915K
代理商: STW81100ATR
19/23
STW81100
Table 20. A_COUNTER
Bit B0 for B Counter, A Counter value and bit R8 for Reference divider.
Table 21. REF_DIVIDER
Reference Clock divider ratio R[7:0] (bit R8 in the previous register).
The LO output frequency is programmed by setting the proper value for A,B and R according to the fol-
lowing formula:
F
OUT
D
R
B 64
=
{
Table 22. Calibration
This register controls VCO calibrator.
INITCAL: resets the auto-calibrator State Machine (writing to “1” and back to “0”)
SERCAL: at “1” starts the VCO auto-calibration (should be reset to “0” at the end of calibration)
SELEXTCAL: at “1” selects control word EXTCAL[4:0] for the VCO
EXTCAL[4:0]: control word for the VCO
Table 23. CONTROL
The CONTROL register is used to set the VCO output voltage amplitude and the Charge Pump Current.
PLL_A[1:0]: VCO amplitude
CPSEL[2:0]: Charge Pump output current
MSB
LSB
b7
b6
b5
b4
b3
b2
b1
b0
B0
A5
A4
A3
A2
A1
A0
RS
MSB
LSB
b7
b6
b5
b4
b3
b2
b1
b0
R7
R6
R5
R4
R3
R2
R1
R0
1
for Direct Output
where D
R
equals
0.5
for Output Divided by 2
0.25
for Output Divided by 4
MSB
LSB
b7
b6
b5
b4
b3
b2
b1
b0
INIT CAL
SER CAL
SEL EXT CAL
CAL 0
CAL 1
CAL 2
CAL 3
CAL 4
b7
b6
b5
b4
b3
b2
b1
b0
PLL_A0
PLL_A1
CP SEL 0
CP SEL 1
CP SEL 2
NA
NA
NA
A
+
(
)
F
R
--------------------------
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相關代理商/技術參數
參數描述
STW81100ATR-1 功能描述:鎖相環(huán) - PLL MULTI BAND RF FREQ SYNTHESIZER RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數量:1 最大輸入頻率:710 MHz 最小輸入頻率:0.002 MHz 輸出頻率范圍:0.002 MHz to 808 MHz 電源電壓-最大:3.63 V 電源電壓-最小:1.71 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:QFN-36 封裝:Tray
STW81101 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Multi-band RF frequency synthesizer with integrated VCOs
STW81101_07 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Multi-band RF frequency synthesizer with integrated VCOs
STW81101AT 功能描述:鎖相環(huán) - PLL INTER-N FREQUENCY SYNTHESIZER RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數量:1 最大輸入頻率:710 MHz 最小輸入頻率:0.002 MHz 輸出頻率范圍:0.002 MHz to 808 MHz 電源電壓-最大:3.63 V 電源電壓-最小:1.71 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:QFN-36 封裝:Tray
STW81101ATR 功能描述:鎖相環(huán) - PLL WIRELESS INFRASTR. RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數量:1 最大輸入頻率:710 MHz 最小輸入頻率:0.002 MHz 輸出頻率范圍:0.002 MHz to 808 MHz 電源電壓-最大:3.63 V 電源電壓-最小:1.71 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:QFN-36 封裝:Tray