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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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TMS320F2812 데이터시트(PDF) 65 Page - Texas Instruments |
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TMS320F2812 데이터시트(HTML) 65 Page - Texas Instruments |
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65 / 170 page  ADCINA[7:0] ADCINB[7:0] ADCLO ADCBGREFIN (A) Test Pin ADC External Current Bias Resistor ADCRESEXT ADCREFP V DDA1 V DDA2 V SSA1 V SSA2 AVDDREFBG AVSSREFBG V DDAIO V SSAIO V DD1 V SS1 ADC Reference Positive Output ADCREFM ADC Reference Medium Output ADC Analog Power ADC Reference Power ADC Analog I/O Power ADC Digital Power Analog input 0-3 V with respect to ADCLO Connect to Analog Ground Analog 3.3 V Analog 3.3 V Analog 3.3 V Analog 3.3 V Analog Ground 1.8 V ADCREFP and ADCREFM should not be loaded by external circuitry can use the same 1.8-V (or 1.9-V) supply as the digital core but separate the two with a ferrite bead or a filter Digital Ground ADC 16-Channel Analog Inputs 10 F (C) 10 F (C) 24.9 k /20 k (B) TMS320F2810, TMS320F2811, TMS320F2812 TMS320C2810, TMS320C2811, TMS320C2812 www.ti.com SPRS174S – APRIL 2001 – REVISED MARCH 2011 Figure 4-5 shows the ADC pin-biasing for internal reference and Figure 4-6 shows the ADC pin-biasing for external reference. A. Provide access to this pin in PCB layouts. Intended for test purposes only. B. Use 24.9 k Ω for ADC clock range 1–18.75 MHz; use 20 kΩ for ADC clock range 18.75–25 MHz. C. TAIYO YUDEN EMK325F106ZH, EMK325BJ106MD, or equivalent ceramic capacitor D. External decoupling capacitors are recommended on all power pins. E. Analog inputs must be driven from an operational amplifier that does not degrade the ADC performance. Figure 4-5. ADC Pin Connections With Internal Reference NOTE The temperature rating of any recommended component must match the rating of the end product. Copyright © 2001–2011, Texas Instruments Incorporated Peripherals 65 Submit Documentation Feedback Product Folder Link(s): TMS320F2810 TMS320F2811 TMS320F2812 TMS320C2810 TMS320C2811 TMS320C2812 |
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