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AD5522JSVD датащи(PDF) 45 Page - Analog Devices |
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AD5522JSVD датащи(HTML) 45 Page - Analog Devices |
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45 / 48 page ![]() Preliminary Technical Data AD5522 Rev. PrM | Page 45 of 48 TYPICAL APPLICATION FOR THE AD5522 Figure 29 shows the AD5522 as used in an ATE system. This device can used as a per pin parametric unit in order to speed up the rate at which testing can be done. The central PMU shown in the block diagram is usually a highly accurate PMU, and is shared among a number of pins in the tester. In general, many discrete levels are required in an ATE system for the pin drivers, comparators, clamps, and active loads. DAC devices, such as the AD5379, offer a highly integrated solution for a number of these levels. The AD5379 is a dense 40-channel DAC designed with high channel requirements, such as ATE . Comp Driver Driver PPMU Active Load DUT Formatter De-Skew Timing Generator DLL,Logic Compare Memory Compare Memory VH VL VTH VTL IOL IOH VCOM Relays 50Ω Coax VCH VCL Vterm GND Sense Timing Data Memory Timing Data Memory Formatter De-Skew Central PMU DAC DAC DAC DAC DAC DAC DAC DAC DAC DAC DAC DAC DAC DAC DAC DAC DAC DAC DAC DAC DAC DAC DAC ADC ADC ADC DAC DAC ADC ADC Guard Amp Guard Amp Driven Shield Device Power supply AD5522 Figure 29. Typical Applications Circuit using the AD5522 as a per pin parametric unit. |
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