參數(shù)資料
型號: GF9101
廠商: Electronic Theatre Controls, Inc.
英文描述: High Performance Multirate Digital Filter
中文描述: 高性能多速率數(shù)字濾波器
文件頁數(shù): 9/23頁
文件大?。?/td> 188K
代理商: GF9101
520 - 64 - 7
9
G
Fig. 7 Input Data A
n
and Coefficients C
n
TABLE 7: Configuration Word for an Odd-Tap Symmetric Filter
BIT
NO.
CONFIGURATION
WORD
DESCRIPTION
0
1
Data A and B are both
signed data
2
1
1
2
0
One register delay
3
0
4
1
23-tap filter, bypass reg.
B_12
5
X
Depending on loading mode.
6
X
(See Table 1)
NOTE:
2: Bits 0 and 1 should have the same value for a 23 or 24 tap
filter.
TABLE 8: Internal RAM Addresses and Contents
COEF_ADDR (6-0)
MEMORY CONTENTS
00
H
12 coefficients, for tap 1
>
tap 12
C
4
C
5
C
6
C
7
C
8
C
9
C
10
C
3
C
2
C
1
C
0
C
11
C
4
C
5
C
6
C
7
C
8
C
9
C
10
C
3
C
2
C
1
C
0
(a) Filter Coefficients C
n
A
17
A
16
A
15
A
14
A
24
A
23
A
22
A
21
A
19
A
18
A
4
A
5
A
6
A
7
A
8
A
9
A
10
A
3
A
2
A
1
A
0
A
11
A
12
A
13
(b) Input Data A
n
A
20
A
25
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