參數(shù)資料
型號(hào)： LMX2532LQX1065
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類(lèi)： XO, clock
英文描述： PLLatinum Frequency Synthesizer System with Integrated VCOs
中文描述： PLL FREQUENCY SYNTHESIZER, 19.68 MHz, QCC28
封裝： 5 X 5 MM, 0.75 MM HEIGHT, LLP-28
文件頁(yè)數(shù)： 12/18頁(yè)
文件大小： 189K
代理商： LMX2532LQX1065
Programming Description
(Continued)
RF N Counter Setting:
Counter Name
Modulus Counter
Programmable
Counter
Swallow Counter
Symbol
RF_FN
RF_B
Function
RF N Divider
N = Prescaler x RF_B + RF_A + (RF_FN / f
OSC
) 10
4
RF_A
Pulse Swallow Function:
f = {Prescaler x RF_B + RF_A + (RF_FN / f
OSC
) x 10
4
} x f
OSC
where (RF_A
<
RF_B)
where
f
VCO
: Output frequency of voltage controlled oscillator (VCO)
Prescaler Values:
Device Type
LMX2522
LMX2532
RF Prescaler
8
6
GPS Prescaler
6
8
RF_B: Preset divide ratio of binary 4-bit programmable counter (2
≤
RF_B
≤
15)
RF_A: Preset divide ratio of binary 3-bit swallow counter (0
≤
RF_A
≤
7 for prescaler of 8 or 0
≤
RF_A
≤
5 for prescaler of 6)
RF_FN: Preset numerator of binary 11-bit modulus counter (0
≤
RF_FN
<
1920 for f
OSC
= 19.20 MHz; 0
≤
RF_FN
<
1968 for f
OSC
= 19.68 MHz).
f
OSC
: Reference oscillator frequency
NOTE: For the use of reference frequencies other than those specified, please contact National Semiconductor.
L
www.national.com
12
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LMX2541 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:Ultra-Low Noise PLLatinum Frequency Synthesizer with Integrated VCO
LMX25412060EVAL 功能描述:時(shí)鐘和定時(shí)器開(kāi)發(fā)工具 LMX25412060 EVAL BOARD RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Modules 類(lèi)型:Clock Conditioners 工具用于評(píng)估:LMK04100B 頻率:122.8 MHz 工作電源電壓:3.3 V
LMX25412060EVAL/NOPB 功能描述:時(shí)鐘和定時(shí)器開(kāi)發(fā)工具 LMX25412060 EVAL BOARD RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Modules 類(lèi)型:Clock Conditioners 工具用于評(píng)估:LMK04100B 頻率:122.8 MHz 工作電源電壓:3.3 V
LMX25412380EVAL/NOPB 功能描述:時(shí)鐘和定時(shí)器開(kāi)發(fā)工具 LMX25412380 EVAL BOARD RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Modules 類(lèi)型:Clock Conditioners 工具用于評(píng)估:LMK04100B 頻率:122.8 MHz 工作電源電壓:3.3 V
LMX25412690EVAL/NOPB 功能描述:時(shí)鐘和定時(shí)器開(kāi)發(fā)工具 LMX25412690 EVAL BOARD RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Modules 類(lèi)型:Clock Conditioners 工具用于評(píng)估:LMK04100B 頻率:122.8 MHz 工作電源電壓:3.3 V
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