參數(shù)資料
型號: TMC2250AKEC3
廠商: RAYTHEON SEMICONDUCTOR
元件分類: 數(shù)字信號處理外設(shè)
英文描述: JT 37C 37#22D SKT PLUG
中文描述: 12-BIT, DSP-MULTIPLIER, PQFP120
文件頁數(shù): 3/23頁
文件大?。?/td> 186K
代理商: TMC2250AKEC3
TMC2250A
PRODUCT SPECIFICATION
REV. 1.0.2 10/25/00
3
Table 2. Bit Weightings for Input and Output Data Words
11
2
2
Inputs
All Modes
Data A, B, C
Coefficients
KA, KB, KC
Modes 01,
10, 11 CASIN
Internal Sum
X
20
X
19
X
18
X
17
X
16
X
15
X
14
X
13
X
12
X
11
X
10
X
9
. X
8
X
7
X
6
X
5
X
4
X
3
X
2
X
1
X
0
Outputs
Mode 00
X, Y, Z
Modes 01,
10, 11
CASOUT
Note:
A minus sign indicates a two’s complement sign bit.
Bit Weights
2
10
9
2
8
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
. 2
-1
2
-2
2
-3
2
-4
2
-5
2
-6
2
-7
2
-8
2
-9
-I
11
I
10
I
9
I
8
I
7
I
6
I
5
I
4
I
3
I
2
I
1
I
0
.
-K
9
. K
8
K
7
K
6
K
5
K
4
K
3
K
2
K
1
K
0
-CI
15
CI
14
CI
13
CI
12
CI
11
CI
10
CI
9
CI
8
CI
7
CI
6
CI
5
CI
4
. CI
3
CI
2
CI
1
CI
0
-O
11
O
10
O
9
O
8
O
7
O
6
O
5
O
4
O
3
O
2
O
1
O
0
.
-
CO
15
CO
1
4
CO
1
3
CO
1
2
CO
1
1
CO
1
0
CO
9
CO
8
CO
7
CO
6
CO
5
CO
4
. CO
3
CO
2
CO
1
CO
0
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