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參數(shù)資料
| 型號： | LMX2370SLDX |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 2500 MHz, QCC24 |
| 封裝： | 3.50 X 4.50 MM, 0.8 MM HEIGHT, TCSP-24 |
| 文件頁數(shù)： | 13/25頁 |
| 文件大小： | 577K |
| 代理商： | LMX2370SLDX |
Typical Application Example
10102636
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 val-
ues 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
in may be AC or DC coupled.
AC coupling is recommended because the input circuit
provides its own bias. (See Figure below)
**** Adding RC filters to the V
CC line is recommended to
reduce loop-to-loop noise coupling.
10102637
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.
LMX2370
www.national.com
20
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LMX2370TM | 功能描述:IC FREQ SYNTH DL 2.5GHZ 20TSSOP RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發(fā)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(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:* 供應商設備封裝:* 包裝:* |
| LMX2370TMX | 功能描述:IC FREQ SYNTH DL 2.5GHZ 20-TSSOP RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發(fā)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(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:* 供應商設備封裝:* 包裝:* |
| LMX2370TMX/NOPB | 制造商:Texas Instruments 功能描述:PLL Frequency Synthesizer Dual 45MHz to 2500MHz 20-Pin TSSOP T/R |
| LMX2371 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| LMX2371 WAF | 制造商:Texas Instruments 功能描述: |
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