參數(shù)資料
型號: LMX15010AM
廠商: National Semiconductor Corporation
英文描述: 1.1 GHz Frequency Synthesizer for RF Personal Communications(367.82 k)
中文描述: 1.1千兆赫頻率合成射頻個人通信(367.82十一)
文件頁數(shù): 14/22頁
文件大小: 367K
代理商: LMX15010AM
Typical Application Example
TL/W/12340–28
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
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/12340–29
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 a static sensitive device. It should be handled only at static free work stations.
14
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