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參數資料
型號: LMX2433TMX
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: XO, clock
英文描述: PLLatinum Dual High Frequency Synthesizer for RF Personal Communications
中文描述: PLL FREQUENCY SYNTHESIZER, 3600 MHz, PDSO20
封裝: PLASTIC, TSSOP-20
文件頁數: 45/49頁
文件大小: 943K
代理商: LMX2433TMX
2.0 Programming Description
(Continued)
2.8.2 IF_B[13:0] - IF Synthesizer Programmable Binary Counter (B Counter) (R4[20:7])
The IF_B control word is used to setup the IF synthesizer’s B counter. The B counter is a 14-bit programmable binary counter
used in the programmable feedback divider. The IF_B control word can be programmed to values ranging from 3 to 16383. Divide
ratios less than 3 are prohibited.
Divide
Ratio
3
4
16383
IF_B[13:0]
7
0
0
1
13
0
0
1
12
0
0
1
11
0
0
1
10
0
0
1
9
0
0
1
8
0
0
1
6
0
0
1
5
0
0
1
4
0
0
1
3
0
0
1
2
0
1
1
1
1
0
1
0
1
0
1
2.8.3 IF_P - IF Synthesizer Prescaler Select (R4[22])
The LMX243x IF synthesizer utilizes a selectable dual modulus prescaler. An 8/9 or a 16/17 prescale ratio can be selected.
Control Bit
Register Location
Description
Function
0
1
IF_P
R4[22]
IF Prescaler Select
8/9 Prescaler
Selected
16/17 Prescaler
Selected
2.8.4 IF_PD - IF Synthesizer Powerdown (R4[23])
The IF_PD bit is used to switch the IF PLL between a powered up and powered down mode.
Furthermore, the IF_PD bit operates in conjuction with the IF_CPT bit to set a synchronous or an asynchronous powerdown
mode. Refer to
Section 2.7.4
for more details on how to program the IF_CPT bit.
Control Bit
Register Location
Description
Function
0
1
IF_PD
R4[23]
IF Powerdown
IF PLL Active
IF PLL Powerdown
L
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相關PDF資料
PDF描述
LMX2434 PLLatinum Dual High Frequency Synthesizer for RF Personal Communications
LMX2434TM PLLatinum Dual High Frequency Synthesizer for RF Personal Communications
LMX2434TMX PLLatinum Dual High Frequency Synthesizer for RF Personal Communications
LMX2430SLEX PLLatinum Dual High Frequency Synthesizer for RF Personal Communications
LMX2430TM PLLatinum Dual High Frequency Synthesizer for RF Personal Communications
相關代理商/技術參數
參數描述
LMX2433TMX/NOPB 功能描述:鎖相環 - PLL 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
LMX2434 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinum Dual High Frequency Synthesizer for RF Personal Communications
LMX2434EVAL 功能描述:時鐘和定時器開發工具 LMX2434 EVAL BOARD RoHS:否 制造商:Texas Instruments 產品:Evaluation Modules 類型:Clock Conditioners 工具用于評估:LMK04100B 頻率:122.8 MHz 工作電源電壓:3.3 V
LMX2434EVAL/NOPB 功能描述:時鐘和定時器開發工具 LMX2434 EVAL BOARD RoHS:否 制造商:Texas Instruments 產品:Evaluation Modules 類型:Clock Conditioners 工具用于評估:LMK04100B 頻率:122.8 MHz 工作電源電壓:3.3 V
LMX2434SLEX 制造商:Texas Instruments 功能描述:PLL Frequency Synthesizer Dual 500MHz to 5000MHz 20-Pin LAM UCSP T/R
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