參數(shù)資料
型號(hào): AM79Q021JC
廠商: ADVANCED MICRO DEVICES INC
元件分類: 編解碼器
英文描述: PCM CODEC, PQCC44
封裝: PLASTIC, LCC-44
文件頁數(shù): 47/64頁
文件大?。?/td> 911K
代理商: AM79Q021JC
SLAC Products
51
41, 42. Write/Read R Filter Coefficients
MPI Command
(8A/8Bh)
R/W = 0: Write
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)
(HFIR (z) = 1, R6 = 0.9902)
See note under Commands 31 and 32.
D7
D6
D5
D4
D3
D2
D1
D0
Command
1
0
1
0
1
R/W
I/O Input Data Byte 1
C46
m46
C36
m36
I/O Input Data Byte 2
C26
m26
C16
m16
I/O Input Data Byte 3
C40
m40
C30
m30
I/O Input Data Byte 4
C20
m20
C10
m10
I/O Input Data Byte 5
C41
m41
C31
m31
I/O Input Data Byte 6
C21
m21
C11
m11
I/O Input Data Byte 7
C42
m42
C32
m32
I/O Input Data Byte 8
C22
m22
C12
m12
I/O Input Data Byte 9
C43
m43
C33
m33
I/O Input Data Byte 10
C23
m23
C13
m13
I/O Input Data Byte 11
C44
m44
C34
m34
I/O Input Data Byte 12
C24
m24
C14
m14
I/O Input Data Byte 13
C45
m45
C35
m35
I/O Input Data Byte 14
C25
m25
C15
m15
HR
H
=
IIR
H
FIR
H
IIR
1z
1
1R
6
z
1
()
---------------------------------
=
R
6
C16
2
ml6
1C26
2
m26
1C36
2
m36
1C46
2
m46
+
()
+
[]
+
{}
=
H
FIR z
() R
0
R
1z
1
R
2z
2
R
3z
3
R
4z
4
R
5z
5
+++++
=
R
i
C1i
2
m1i
1C2i
2
m2i
1C3i
2
m3i
1C4i
2
m4i
+
()
+
[]
+
{}
=
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