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DAC11001A Scheda tecnica(PDF) 36 Page - Texas Instruments |
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DAC11001A Scheda tecnica(HTML) 36 Page - Texas Instruments |
36 / 42 page AVDD1 AVDD2 VSS VCC AGND PLA NE DGND PLA NE AGND-OUT PLA NE IOVDD DVDD IOVDD DAC_OUT REFRE NCE INP UTS EMBEDDED RESISTORS AGND-OUT an d AGND sho rt AGND and DGND short DIG ITAL SIGNALS DIG ITAL SIGNALS POWE R INPUT DAC110 01 IOVDD 36 DAC11001A, DAC91001, DAC81001 SLASEL0 – OCTOBER 2019 www.ti.com Product Folder Links: DAC11001A DAC91001 DAC81001 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated 11 Layout 11.1 Layout Guidelines PCB layout plays a significant role for achieving desired ac and dc performance from the DACx1001. The DACx1001 has a pinout that supports easy splitting of the noisy and quiet grounds. The digital signals are available on two adjacent sides of the device; whereas, the power and analog signals are available separate sides. Figure 29 shows an example layout, where the different ground planes have been clearly demarcated. The figure also shows the best positions for the single-point shorts between the ground planes. For best power- supply bypassing, place the bypass capacitors close to the respective power pins as shown. Provide unbroken ground reference planes for the digital signal traces, especially for the SPI and LDAC signals. 11.2 Layout Example Figure 29. Layout Example |
Codice articolo simile - DAC11001A_V01 |
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Descrizione simile - DAC11001A_V01 |
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