參數(shù)資料
型號(hào): MAX1206
廠商: Maxim Integrated Products, Inc.
英文描述: 40Msps, 12-Bit ADC
中文描述: 12位,40Msps ADC
文件頁(yè)數(shù): 22/29頁(yè)
文件大?。?/td> 609K
代理商: MAX1206
M
40Msps, 12-Bit ADC
22
______________________________________________________________________________________
BINARY-TO-GRAY CODE CONVERSION
1) THE MOST SIGNIFICANT GRAY-CODE BIT IS THE SAME
AS THE MOST SIGNIFICANT BINARY BIT.
D11
0
1
1
1
0
1
0
0
1
1
0
0
BINARY
GRAY CODE
0
2) SUBSEQUENT GRAY-CODE BITS ARE FOUND ACCORDING
TO THE FOLLOWING EQUATION:
GRAY
X
= BINARY
X
+ BINARY
X + 1
D7
D3
D0
BIT POSITION
0
1
1
1
0
1
0
0
1
1
0
0
BINARY
GRAY CODE
0
D11
D7
D3
D0
BIT POSITION
GRAY
10
= BINARY
10
BINARY
11
GRAY
10
= 1
0
GRAY
10
= 1
1
3) REPEAT STEP 2 UNTIL COMPLETE
0
1
1
1
0
1
0
0
1
1
0
0
BINARY
GRAY CODE
0
D11
D7
D3
D0
BIT POSITION
GRAY
9
= BINARY
9
BINARY
10
GRAY
9
= 1
1
GRAY
9
= 0
1
0
4) THE FINAL GRAY CODE CONVERSTION IS:
0
1
1
1
0
1
0
0
1
1
0
0
BINARY
GRAY CODE
0
D11
D7
D3
D0
BIT POSITION
1
0
0
1
1
0
1
1
0
1
0
GRAY-TO-BINARY CODE CONVERSION
1) THE MOST SIGNIFICANT BINARY BIT IS THE SAME AS THE
MOST SIGNIFICANT GRAY-CODE BIT.
D11
D7
2) SUBSEQUENT BINARY BITS ARE FOUND ACCORDING TO
THE FOLLOWING EQUATION:
BINARY
X
= BINARY
X+1
+
D3
D0
BIT POSITION
BINARY
10
= BINARY
11
GRAY
10
BINARY
10
= 0
1
BINARY
10
= 1
3) REPEAT STEP 2 UNTIL COMPLETE
4) THE FINAL BINARY CONVERSTION IS:
0
1
0
0
1
1
1
0
1
0
1
0
BINARY
GRAY CODE
D11
D7
D3
D0
BIT POSITION
0
BINARY
GRAY CODE
0
1
0
0
1
1
0
1
1
0
1
0
BINARY
9
= BINARY
10
GRAY
9
BINARY
9
= 1
0
BINARY
9
= 1
GRAY
X
0
1
0
0
1
1
1
0
1
0
1
0
BINARY
GRAY CODE
0
D11
D7
D3
D0
BIT POSITION
1
0
1
0
0
1
1
1
0
1
0
1
0
BINARY
GRAY CODE
0
D11
D7
D3
D0
BIT POSITION
1
1
0
1
1
1
0
1
0
0
1
1
0
0
A
B
Y
=
A
B
0
0
1
1
0
1
0
1
0
1
1
0
EXCULSIVE OR TRUTH TABLE
WHERE +
TABLE BELOW) AND X IS THE BIT POSITION.
WHERE +
TABLE BELOW) AND X IS THE BIT POSITION.
+
+
+
+
+
+
+
+
+
+
+
+
+
Figure 8. Binary-to-Gray and Gray-to-Binary Code Conversion
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