- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384604 > LMX2337 (National Semiconductor Corporation) PLLatinum Dual Frequency Synthesizer for RF Personal Communications(PLLatinum技術(shù)用于射頻個(gè)人通訊的雙通道頻率合成器) PDF資料下載
參數(shù)資料
| 型號： | LMX2337 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | PLLatinum Dual Frequency Synthesizer for RF Personal Communications(PLLatinum技術(shù)用于射頻個(gè)人通訊的雙通道頻率合成器) |
| 中文描述： | PLLatinum雙頻率合成射頻個(gè)人通信（PLLatinum技術(shù)用于射頻個(gè)人通訊的雙通道頻率合成器） |
| 文件頁數(shù)： | 12/17頁 |
| 文件大?。?/td> | 392K |
| 代理商： | LMX2337 |
Typical Application Example
Application Information
A block diagram of the basic phase locked loop is shown in Figure 1
DS012332-10
Operational Notes:
*
VCO is assumed AC coupled.
**
R
increases impedance so that VCO output power is provided to the load rather than the PLL. Typical values are 10
to
200
depending on the VCO power level. f
IN
RF impedance ranges from 40
to 100
. f
IN
IF impedances are higher.
***
50
termination is often used on test boards to allow use of external reference oscillator. For most typical products a
CMOS clock is used and no terminating resistor is required. OSC
may be AC or DC coupled. AC coupling is recom-
mended because the input circuit provides its own bias. (See Figure below).
****
Adding RC filters to the V
CC
lines is recommended to reduce loop-to-loop noise coupling.
DS012332-11
Application Hints:
Proper use of grounds and bypass capacitors is essential to achieve a high level of performance. Crosstalk between pins can be reduced by careful board
layout.
This is an electrostatic sensitive device. It should be handled only at static free work stations.
DS012332-12
FIGURE 1. Conventional PLL Architecture
L
www.national.com
12
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LMX2350 | PLLatinum Fractional Dual Low Power Frequency Synthesizer(PLLatinum技術(shù)低耗雙通道頻率合成器) |
| LMX2352 | PLLatinum Fractional Dual Low Power Frequency Synthesizer(PLLatinum技術(shù)低耗雙通道頻率合成器) |
| LMX2350TM | PLLatinum⑩ Fractional N RF / Integer N IF Dual Low Power Frequency Synthesizer |
| LMX2352TM | CAP,CER,DISC,RAD,100PF,10%,1KV |
| LMX2470 | 2.6 GHz Delta-Sigma Fractional-N PLL with 800 MHz Integer-N PLL |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LMX2337M | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinum⑩ Dual Frequency Synthesizer for RF Personal Communications |
| LMX2337MX | 功能描述:IC FREQ SYNTH DUAL 1.1GHZ 16SOIC RoHS:否 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘發(fā)生器，PLL，頻率合成器 系列:PLLatinum™ 標(biāo)準(zhǔn)包裝:39 系列:- 類型:* PLL:帶旁路 輸入:時(shí)鐘 輸出:時(shí)鐘 電路數(shù):1 比率 - 輸入:輸出:1:10 差分 - 輸入:輸出:是/是 頻率 - 最大:170MHz 除法器/乘法器:無/無 電源電壓:2.375 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:* 封裝/外殼:* 供應(yīng)商設(shè)備封裝:* 包裝:* |
| LMX2337TM | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinum⑩ Dual Frequency Synthesizer for RF Personal Communications |
| LMX2337TMX | 功能描述:IC FREQ SYNTH DL 1.1GHZ 16-TSSOP RoHS:否 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘發(fā)生器，PLL，頻率合成器 系列:PLLatinum™ 標(biāo)準(zhǔn)包裝:39 系列:- 類型:* PLL:帶旁路 輸入:時(shí)鐘 輸出:時(shí)鐘 電路數(shù):1 比率 - 輸入:輸出:1:10 差分 - 輸入:輸出:是/是 頻率 - 最大:170MHz 除法器/乘法器:無/無 電源電壓:2.375 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:* 封裝/外殼:* 供應(yīng)商設(shè)備封裝:* 包裝:* |
| LMX233XA | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinum⑩ Dual Frequency Synthesizer for RF Personal Communications |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。