參數(shù)資料
型號(hào): LMX2531LQ1650E
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: XO, clock
英文描述: PLLatinum High Performance Frequency Synthesizer System with Integrated VCO
中文描述: PLL FREQUENCY SYNTHESIZER, 80 MHz, QCC36
封裝: 6 X 6 MM, 0.80 MM HEIGHT, LEAD FREE, LLP-36
文件頁(yè)數(shù): 23/25頁(yè)
文件大小: 589K
代理商: LMX2531LQ1650E
2.0 General Programming Information
(Continued)
2.10 REGISTERS R9 and R12
2.10.1 LDDIV4- RF Digital Lock Detect Divide By 4
Because the digital lock detect function is based on a phase error, it becomes more difficult to detect a locked condition for larger
comparison frequencies. When this bit is enabled, it subdivides the RF PLL comparison frequency presented to the digital lock
detect circuitry by 4. This enables this circuitry to work at higher comparison frequencies. It is recommended that this bit be
enabled whenever the comparison frequency exceeds 20 MHz and RF digital lock detect is used. This does not apply to the IF
comparison frequency.
2.11 REGISTER R12
This register does not have user selectable bits. This register should be loaded as shown in section 2.02 Complete Register
Content Map.
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參數(shù)描述
LMX2531LQ1650E/NOPB 功能描述:鎖相環(huán) - PLL HIGH PERF FREQUENCY SYNTHESIZER SYSTEM RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數(shù)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
LMX2531LQ1700E 制造商:NSC 制造商全稱:National Semiconductor 功能描述:High Performance Frequency Synthesizer System with Integrated VCO
LMX2531LQ1700E/NOPB 功能描述:鎖相環(huán) - PLL RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數(shù)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
LMX2531LQ1742 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述:SYNTHESIZER SYSTEM POWERWISE SMD
LMX2531LQ1742/NOPB 功能描述:鎖相環(huán) - PLL RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數(shù)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