參數(shù)資料
型號(hào): LMX2430
廠商: National Semiconductor Corporation
英文描述: PLLatinum Dual High Frequency Synthesizer for RF Personal Communications
中文描述: PLLatinum雙高頻率合成射頻個(gè)人通信
文件頁數(shù): 45/49頁
文件大?。?/td> 943K
代理商: LMX2430
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
www.national.com
45
相關(guān)PDF資料
PDF描述
LMX2433TM PLLatinum Dual High Frequency Synthesizer for RF Personal Communications
LMX2433TMX PLLatinum Dual High Frequency Synthesizer for RF Personal Communications
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
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LMX2430EVAL 功能描述:EVALUATION BOARD FOR LMX2430 RoHS:否 類別:編程器,開發(fā)系統(tǒng) >> 評(píng)估演示板和套件 系列:PLLatinum™ 標(biāo)準(zhǔn)包裝:1 系列:PCI Express® (PCIe) 主要目的:接口,收發(fā)器,PCI Express 嵌入式:- 已用 IC / 零件:DS80PCI800 主要屬性:- 次要屬性:- 已供物品:板
LMX2430EVAL/NOPB 功能描述:時(shí)鐘和定時(shí)器開發(fā)工具 LMX2430 EVAL BOARD RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Modules 類型:Clock Conditioners 工具用于評(píng)估:LMK04100B 頻率:122.8 MHz 工作電源電壓:3.3 V
LMX2430SLEX 制造商:Texas Instruments 功能描述:3GHZ HI FREQ DUAL PLL SMD 2430
LMX2430SLEX/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
LMX2430SLEXNOPB 制造商:National Semiconductor 功能描述:PLL Frequency Synthesizer Dual 100MHz to 3000MHz 20-Pin LAM UCSP T/R