參數(shù)資料
型號(hào): AM79Q021VC
廠商: Electronic Theatre Controls, Inc.
英文描述: Quad Subscriber Line Audio-Processing Circuit (QSLAC) Devices
中文描述: 四用戶(hù)線(xiàn)路音頻處理電路(QSLAC)設(shè)備
文件頁(yè)數(shù): 51/68頁(yè)
文件大?。?/td> 1361K
代理商: AM79Q021VC
SLAC Products
51
41, 42. Write/Read R Filter Coefficients
(8A/8Bh)
R/W = 0: Write
MPI Command
R/W = 1: Read
The Z-transform equation for the IIR filter is defined as:
Sample rate = 8 kHz
The coefficient for the IIR filter is defined as:
The Z-transform equation for the FIR filter is defined as:
Sample rate = 16 kHz
For i = 0 to 5, the coefficients for the R2 filter are defined as:
Power Up and Hardware Reset (
RST
) Values = 2E01 0111 0190 0190 0190 0190 0190 (Hex)
(H
FIR
(z) = 1, R
6
= 0.9902)
See note under Commands 31 and 32.
D
7
1
C46
C26
C40
C20
C41
C21
C42
C22
C43
C23
C44
C24
C45
C25
D
6
0
D
5
0
m46
m26
m40
m20
m41
m21
m42
m22
m43
m23
m44
m24
m45
m25
D
4
0
D
3
1
C36
C16
C30
C10
C31
C11
C32
C12
C33
C13
C34
C14
C35
C15
D
2
0
D
1
1
m36
m16
m30
m10
m31
m11
m32
m12
m33
m13
m34
m14
m35
m15
D
0
R/W
Command
I/O Input Data Byte 1
I/O Input Data Byte 2
I/O Input Data Byte 3
I/O Input Data Byte 4
I/O Input Data Byte 5
I/O Input Data Byte 6
I/O Input Data Byte 7
I/O Input Data Byte 8
I/O Input Data Byte 9
I/O Input Data Byte 10
I/O Input Data Byte 11
I/O Input Data Byte 12
I/O Input Data Byte 13
I/O Input Data Byte 14
HR
H
=
IIR
H
FIR
H
IIR
z
1
1
R
6
z
1
(
)
-------1
=
R
6
C16
2
ml6
1
C26
2
m26
1
C36
2
m36
1
C46
2
m46
+
(
)
+
[
]
+
{
}
=
H
FIR
z
( )
R
0
R
1
z
1
R
2
z
2
R
3
z
3
R
4
z
4
R
5
z
5
+
+
+
+
+
=
R
i
C1i
2
m1i
1
C2i
2
m2i
1
C3i
2
m3i
1
C4i
2
m4i
+
(
)
+
[
]
+
{
}
=
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