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參數(shù)資料
| 型號： | CYRF69213 |
| 廠商： | Cypress Semiconductor Corp. |
| 英文描述： | Programmable Radio on Chip Low Power |
| 中文描述： | 可編程片上無線電低功耗 |
| 文件頁數(shù)： | 22/85頁 |
| 文件大?。?/td> | 731K |
| 代理商： | CYRF69213 |
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CYRF69213
Document #: 001-07552 Rev. *B
Page 22 of 85
Table 31.IOSC Trim (IOSCTR) [0x34] [R/W]
Bit #
Field
Read/Write
Default
The IOSC Calibrate register is used to calibrate the internal oscillator. The reset value is undefined, but during boot the SROM writes a calibration
value that is determined during manufacturing test. This value should not require change during normal use. This is the meaning of ‘D’ in the
Default field
Bits 7:5
foffset [2:0]
This value is used to trim the frequency of the internal oscillator. These bits are not used in factory calibration and will be zero.
Setting each of these bits causes the appropriate fine offset in oscillator frequency
foffset bit 0 = 7.5 KHz
foffset bit 1 = 15 KHz
foffset bit 2 = 30 KHz
Bits 4:0
Gain [4:0]
The effective frequency change of the offset input is controlled through the gain input. A lower value of the gain setting increases
the gain of the offset input. This value sets the size of each offset step for the internal oscillator. Nominal gain change (KHz/off-
setStep) at each bit, typical conditions (24-MHz operation):
Gain bit 0 = –1.5 KHz
Gain bit 1 = –3.0 KHz
Gain bit 2 = –6 KHz
Gain bit 3 = –12 KHz
Gain bit 4 = –24 KHz
7
6
5
4
3
2
1
0
foffset[2:0]
R/W
0
Gain[4:0]
R/W
D
R/W
0
R/W
0
R/W
D
R/W
D
R/W
D
R/W
D
Table 32.LPOSC Trim (LPOSCTR) [0x36] [R/W]
Bit #
7
6
5
4
3
2
1
0
Field
Read/Write
Default
This register is used to calibrate the 32-KHz Low-speed Oscillator. The reset value is undefined, but during boot the SROM writes a calibration
value that is determined during manufacturing test. This value should not require change during normal use. This is the meaning of ‘D’ in the
Default field. If the 32-KHz Low-power bit needs to be written, care should be taken not to disturb the 32-KHz Bias Trim and the 32-KHz Freq
Trim fields from their factory calibrated values
Bit 7
32-KHz Low Power
0 = The 32-KHz Low-speed Oscillator operates in normal mode
1 = The 32-KHz Low-speed Oscillator operates in a low-power mode. The oscillator continues to function normally but with
reduced accuracy
Bit 6
Reserved
Bits 5:4
32-KHz Bias Trim [1:0]
These bits control the bias current of the low-power oscillator.
0 0 = Mid bias
0 1 = High bias
1 0 = Reserved
1 1 = Reserved
Important Note
Do not program the 32-KHz Bias Trim [1:0] field with the reserved 10b value, as the oscillator does not oscillate at all corner
conditions with this setting
Bits 3:0
32-KHz Freq Trim [3:0]
These bits are used to trim the frequency of the low-power oscillator
32-KHz Low
Power
R/W
0
Reserved
32-KHz Bias Trim [1:0]
32-KHz Freq Trim [3:0]
–
D
R/W
D
R/W
D
R/W
D
R/W
D
R/W
D
R/W
D
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CYRF69213_08 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Programmable Radio on Chip Low Power |
| CYRF69213_13 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Programmable Radio on Chip Low Power |
| CYRF69213-40LFXC | 功能描述:射頻接收器 PRoC LP COM RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel |
| CYRF69213-40LTXC | 功能描述:8位微控制器 -MCU Programmable Radio on Chip Low Power RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| CYRF69213A-40LFXC | 功能描述:8位微控制器 -MCU Programmable Radio on Chip Low Power RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
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