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參數資料
| 型號： | LMX2305TMX |
| 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： | LMX2305TMX |
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
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相關代理商/技術參數 |
參數描述 |
|---|---|
| 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 |
| LMX2306SLBX | 制造商:Texas Instruments 功能描述:PLL Frequency Synthesizer Single 25MHz to 550MHz 16-Pin LAM CSP T/R |
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