參數(shù)資料
型號(hào): 9OSC0315
廠商: MIMIX BROADBAND INC
元件分類: Voltage controlled oscillator
英文描述: VCO, 5500 MHz - 8400 MHz
文件頁(yè)數(shù): 7/11頁(yè)
文件大?。?/td> 896K
代理商: 9OSC0315
Pre-production
Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099
Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com
Characteristic Data and Specifications are subject to change without notice.
2005 Mimix Broadband, Inc.
Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept
their obligation to be compliant with U.S. Export Laws.
Page 5 of 11
Typical Application (cont.)
If the amplifier is broadband, then there may be many frequencies which meet the criteria for oscillation, giving rise to unwanted spurious.
To eliminate these unwanted spurious, a filter can be placed in the feedback path. The filter will have the effect of reducing the loop-gain of
the oscillator to <1, for signals (that have a multiple of 2p delay) outside the passband of the filter. Figure 3 shows the same simple
feedback oscillator with a controllable delay in the feedback path, with the addition of a bandpass filter in the feedback path.
The addition of the filter also has a dominant effect on the phase noise of the oscillator. The filter characteristics dominate the ‘Q’ factor of
the oscillator. The ‘Q’ of the oscillator is set by the phase-delay versus frequency characteristic of the loop. In the simple feedback oscillator
shown in Figure 1, the phase-delay versus frequency is set just by the delay characteristics of the transmission line and the amplifier, and
the ‘Q’ factor and resulting phase noise will be relatively poor. The ‘Q’ factor increases when filters with sharper phase-delay versus
frequency characteristics are used. The sharpness is generally determined by the number of stages in the filter.
5.5-8.4 GHz GaAs MMIC
Voltage Controlled Feedback Oscillator
9OSC0315
May 2005 - Rev 05-May-05
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