[理工] [電子]-數位類比電路
[題目]
An analog signal in the range 0 to +10V is to be converted to an 8-bit
digital signal.
(a)What is the digital representation of an input of 6.2V?
(b)What is the largest possible quantization error as a percent of full scale?
[解答]
每bit解析度為: (10-0)/2^8 -1 = 0.0392伏特
(a) 10011110
(b) 最大誤差 0.0392/2伏 , 百分比為0.196%
[疑問]
請問為何(b)最大誤差 0.0392 要除以2呢??
要公式嗎? 還是有其他觀念呢?
謝謝大家的指正,謝謝!!
--
吉他演奏曲
http://blog.xuite.net/iloveguitar/music?st=c&re=list&p=1&w=641095
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 163.32.122.2
推
10/02 03:53, , 1F
10/02 03:53, 1F
→
10/02 03:54, , 2F
10/02 03:54, 2F
→
10/02 03:55, , 3F
10/02 03:55, 3F
→
10/02 12:03, , 4F
10/02 12:03, 4F