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參數資料
| 型號： | LMX2305TM |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | XO, clock |
| 英文描述： | PLLatinumTM 550 MHz Frequency Synthesizer for RF Personal Communications |
| 中文描述： | PLL FREQUENCY SYNTHESIZER, 550 MHz, PDSO20 |
| 封裝： | 0.173 INCH, PLASTIC, TSSOP-20 |
| 文件頁數： | 10/14頁 |
| 文件大小： | 228K |
| 代理商： | LMX2305TM |
Typical Application Example
Operational Notes:
*
VCO is assumed AC coupled.
**
R
IN
increases impedance so that VCO output power is provided to the load rather than the PLL. Typical values are 10
X
to 200
X
depending on the VCO power
level. f
IN
RF impedance ranges from 40
X
to 100
X
.
***
50
X
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
TL/W/12459–22
resistor is required. OSC
IN
may be AC or DC coupled. AC coupling is recommended because the input circuit provides its own bias. (See Figure below)
TL/W/12459–23
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.
http://www.national.com
10
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LMX2305TMX | 功能描述:IC FREQ SYNTH DUAL 20-TSSOP RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發生器，PLL，頻率合成器 系列:PLLatinum™ 標準包裝:39 系列:- 類型:* PLL:帶旁路 輸入:時鐘 輸出:時鐘 電路數: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:* 供應商設備封裝:* 包裝:* |
| LMX2305WG/B | 制造商:Rochester Electronics LLC 功能描述: |
| LMX2306 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinum⑩ Low Power Frequency Synthesizer for RF Personal Communications |
| LMX2306_04 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinum⑩ Low Power Frequency Synthesizer for RF Personal Communications |
| LMX2306LBX | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:FREQUENCY SYNTHESIZER|BICMOS|LLCC|16PIN|PLASTIC |
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