涓�銆侀�昏緫浠ｆ暟鍩虹
(
閫昏緫鍑芥暟鍖栫畝銆佸彉鎹?/p>
)
锛?/p>
1
灏忛锛?/p>
1
銆?/p>
鍑芥暟
飪?/p>
飪?/p>
飥?/p>
飥?/p>
)
10
,
8
,
6
,
5
,
4
,
3
,
1
(
)
15
,
13
,
7
,
2
,
0
(
)
,
,
,
(
d
m
D
C
B
A
Y
锛岃姹傦細
锛?/p>
1
锛夊埄鐢ㄥ崱璇哄浘
灏?/p>
Y
鍖栦负鏈�绠�鐨勨�滀笌鎴栤�濊〃杈惧紡锛?/p>
锛?/p>
2
锛夊皢璇ユ渶绠�鐨勨�滀笌鎴栤�濊〃杈惧紡鍙樻崲涓轰笌闈?/p>
-
涓庨潪寮忥紱
锛?/p>
3
锛?/p>
灏嗚鏈�绠�鐨勨�滀笌鎴栤�濊〃杈惧紡鍙樻崲涓烘垨闈?/p>
-
鎴栭潪寮忋�?/p>
浜屻�佸櫒浠讹紙闂ㄧ數璺�佽Е鍙戝櫒銆佸瓨鍌ㄥ櫒銆?/p>
ADC/DAC
锛?/p>
锛?/p>
8
灏忛锛?/p>
1
銆佸啓鍑哄鍥?/p>
2-1
鎵�绀虹數璺腑闂ㄧ數璺殑绫诲瀷锛屽苟鍐欏嚭杈撳嚭绔?/p>
Y
1
銆?/p>
Y
2
銆?/p>
Y
鐨勮〃杈惧紡銆?/p>
Y
1
TTL
TTL
A
B
C
D
Y
2
R
L
V
CC
Y
鍥?/p>
2-1
绛旓細
Y1=A&B
Y2=C&D
Y=Y1&Y2
2
銆佸啓鍑哄鍥?/p>
2-2
鎵�绀虹數璺腑闂ㄧ數璺殑绫诲瀷锛屽苟鍒嗗埆鍐欏嚭涓嬪浘涓綋鎺у埗淇″彿
EN=0
鍜?/p>
EN=1
鏃惰緭鍑虹
Y
1
銆?/p>
Y
2
銆?/p>
Y
鐨勮〃杈惧紡鎴栭�昏緫鐘舵�併�?/p>
Y
1
A
B
C
D
Y
2
Y
EN
鍥?/p>
2-2
绛旓細
EN=0
锛?/p>
Y1=
锛?/p>
A&B
锛?/p>
鈥?/p>
锛?/p>
Y2=
楂橀樆鎶楋紝
Y=
锛?/p>
A&B
锛?/p>
鈥?/p>
EN=1
锛?/p>
Y1 =
楂橀樆鎶楋紝
Y2=
锛?/p>
C&D
锛?/p>
鈥?/p>
,Y=
锛?/p>
C&D
锛?/p>
鈥?/p>
3
銆佺數璺鍥?/p>
2-3
鎵�绀猴紝鍐欏嚭瑙﹀彂鍣ㄨ緭鍏ョ
D
鐨勮〃杈惧紡銆佹槸
CLK
鐨勪笂鍗囨部鎴栦笅闄嶆部瑙﹀彂銆?/p>
瑙﹀彂鏃舵鎬?/p>
Q
*
鐨勮〃杈惧紡锛?/p>
骞惰鏄庤鐢佃矾瀵逛簬杈撳叆淇″彿
A
鏉ヨ鐩稿綋浜庡摢绉嶉�昏緫鍔熻兘鐨勮Е鍙戝櫒銆?/p>