参数资料
型号: MPC92439AC
厂商: INTEGRATED DEVICE TECHNOLOGY INC
元件分类: 时钟产生/分配
英文描述: 900 MHz, OTHER CLOCK GENERATOR, PQFP32
封装: ROHS COMPLIANT, LQFP-32
文件页数: 3/15页
文件大小: 822K
代理商: MPC92439AC
MPC92439 Data Sheet
900MHZ, LOW VOLTAGE, LVPECL CLOCK SYNTHESIZER
MPC92439 REVISION 4 OCTOBER 27, 2009
11
2009 Integrated Device Technology, Inc.
As an alternative to parallel resonance mode crystals, the
oscillator also works with crystals specified in the series resonance
mode. With series resonance crystals, the oscillator frequency and
the synthesized output frequency of the MPC92439 will be a
approximately 350-400 ppm higher than using crystals specified for
parallel frequency mode. This is applicable to applications using the
MPC92439 in sockets designed for the pin and function compatible
MC12439 synthesizer, which has an oscillator using the crystal in its
series resonance mode.Table 13 shows the recommended
specifications for series resonance mode crystals
Table 13. Alternative Crystal Specifications
Parameter
Value
Crystal Cut
Fundamental AT Cut
Resonance Mode
Series
Crystal Frequency
10 - 20 MHz
Shunt Capacitance C0
5 - 7 pF
Equivalent Series Resistance ESR
50–80
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