第5ç«  数模和æ¨&iexcl

第5章 数模和模

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Unformatted text preview: 数数数数数数 数数数数数数数数数数数数数数 数数 数数 数数数数数数数数数数数数数数 数数 数数 数 5 数 数数数数数数数 数 数数数数数数数 数数数数数 • 数数数数数数数数数数数数 数 5 数 数数数数数数数 数 数数数数数数数 5.1 5.1 数数 数数 5.2 D/A 5.2 D/A 数数数 数数数 5.3 A/D 5.3 A/D 数数数 数数数 数数 数数 5.1 概概 数数数数数数数数数数数数数数数数数数数数数数数数 A/D 数数数数 ADC 数数数数数数数数数数数数数数数数数数数数数数数数数 D/A 数数数数 DAC 数 ADC 数 DAC 数数数数数数数数数数数数数数数数数数数数数数数数数数数数数 5.2 D/A 概概概 5.2.1 D/A 5.2.1 D/A 数数数数数数数数 数数数数数数数数 5.2.2 D/A 5.2.2 D/A 数数数数数数 数数数数数数 5.2.3 5.2.3 数数 数数 D/A D/A 数数数数数数数 数数数数数数数 数数 数数 5.2.1 D/A 数数数数数数数数 数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数 数数数数数数数数数数数数数数数数数数数数数数数 ) 2 2 2 2 ( 1 1 2 2 1 1 o ⋅ + ⋅ + + ⋅ + ⋅ =----d d d d K u n n n n u D/A 数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数 3 数数数数数数数 D/A 数数数数数数数数数数数数 D/A 数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数 u o = K u × D 数数数数数数数 i o = K i ×D 数数数 K u 数 K i 数数数数数数数数数数数数数 D 数数数数数数数数数数数数数数数数数数数数数 n 数数数数数 d n-1 d n-2 … d 1 d 数数数数 数数数数数数 ) 2 2 2 2 ( 1 1 2 2 1 1 o ⋅ + ⋅ + + ⋅ + ⋅ =----d d d d K u n n n n u 数 1 数数数数 数数数数数数数数数数数数数数数数数数数数数数数数 n 数数 D/A 数数数数数数数数数数数数 2 n 数数数数数数数数数数数数数数数数数 2 n 数数数数 数数数数数数数数数 数数数数数数数数 D/A 数数数数数数数数数数数数数数数数数数数数数数数数 10 数 D/A 数数数数数数数数数 数 2 数数数数数 数 D/A 数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数 数 3 数数数数数数数 数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数 001 . 1023 1 1 2 1 10 ≈ =-5.2.2 D/A 数数数数数数 R V I R V I R V I R V I REF REF REF REF = = = = 3 2 1 2 4 8 数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数数 1 数数 0 数数数数数数数数数数数 R 2 R 4 R 8R R F I 1 I I 2 I 3 I REF i F i S 3 S S 1 S 2 d d 3 d 2 d 1 + V REF u o 数 + ) 2 2 2 2 ( 2 2 4 8 1 1 2 2...
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This note was uploaded on 11/19/2011 for the course E DigitalE taught by Professor Zhongfali during the Spring '01 term at Xiamen University.

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第5章 数模和模

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