Description: Self-designed specialized network instrument is designed for crystal chip production enterprises. The most advanced high-speed DDS ( Direct Digital Synthesizer ) is utilized in specialized network instrument. As compared to traditional impedance meter, the accuracy of frequency measurement is improved, the frequency measurement range is expanded, and have the capacity of measuring mixed wave and spurious frequency. As compared to the network analyzer, the cost is highly reduced while the advantage is fully played. This technique is widely used in various kinds of crystal chip sorting system produced by our company. Features 1.High accuracy of frequency source: ( at 23± 5 ºC frequency sweeping ) 10KHz to 60KHz 0 to -10ppm 60MHz to 120MHz 0 to -10ppm 10KHz to 300MHz ±20ppm at Aglient E5100B 2.Good stability of frequency source: ±1×10 -6 /day (at 23 ± 5 ºC ) 3.High definition of frequency source: 0.001Hz 4.Adjustable output power of frequency source: -5dBm-- -15dBm 5.Test wave comparing between QB-N-60A and Aglient E5100B: test head of QB-N-60A are both used in the two tests, different convey lines, same ø5.08×4.88 wafers, 11.002 MHz frequency. Our company’s specialized network instrument is used in QB-N-60A crystal chip auto sorting system.) 6.The specialized network instrument had the capability of testing spurious frequency and mixed wave of crystal chips without a network analyzer
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chip production enterprises. The most advanced high-speed DDS ( Direct Digital Synthesizer ) is utilized in specialized network instrument. As compared to traditional impedance meter, the accuracy of frequency measurement is improved, the frequency measurement range is expanded, and have the capacity of measuring mixed wave and spurious frequency. As compared to the network analyzer, the cost is highly reduced while the advantage is fully played. This technique is widely used in various kinds of crystal chip sorting system produced by our company.