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AMC7832IPAPR 数据表(PDF) 60 Page - Texas Instruments |
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AMC7832IPAPR 数据表(HTML) 60 Page - Texas Instruments |
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60 / 74 page ![]() 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 Compensation Capacitor close to REF-CMP pin Bypass Capacitors close to AVDD Bypass Capacitor close to AVCC Bypass Capacitor close to AVEE Bypass Capacitor close to DVDD 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF DVDD SDO SDI SCLK GPIO6 DGND CS GPIO0/ALARMIN GPIO4 RESET GPIO5 GPIO7 GPIO1/ALARMOUT GPIO2/ADCTRIG GPIO3/DAV IOVDD AVDD2 AGND2 ADC_6 ADC_8 ADC_9 ADC_10 ADC_11 ADC_7 ADC_3 ADC_4 ADC_5 LV_ADC14 LV_ADC15 LV_ADC16 LV_ADC12 LV_ADC13 AMC7832 SLAS836 – MARCH 2014 www.ti.com 11 Layout 11.1 Layout Guidelines • All Power Supply terminals should be bypassed to ground with a low ESR ceramic bypass capacitor. The typical recommended bypass capacitance is 10-µF ceramic with a X7R or NP0 dielectric. • To minimize interaction between the analog and digital return currents, the digital and analog sections should have separate ground planes that eventually connect at some point. • To reduce noise on the internal reference, a 4.7-µF capacitor is recommended between the REF_CMP and GND. • A high-quality ceramic type NP0 or X7R is recommended for its optimal performance across temperature, and very low dissipation factor. 11.2 Layout Example Figure 62. AMC7832 Example Board Layout 60 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated Product Folder Links: AMC7832 |
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