參數(shù)資料
型號: AD9782
廠商: Analog Devices, Inc.
英文描述: 12-Bit, 200 MSPS/500 MSPS TxDAC+ with 2 x /4 x /8 x Interpolation and Signal Processing
中文描述: 12位,200 MSPS/500 MSPS的TxDAC系列與2 × / 4 × / 8 ×插值與信號處理
文件頁數(shù): 23/52頁
文件大?。?/td> 1619K
代理商: AD9782
Preliminary Technical Data
AD9782
DIGITAL FILTER SPECIFICATIONS
DIGITAL INTERPOLATION FILTER COEFFICIENTS
Rev. PrC | Page 23 of 52
Table 23. Stage 1 Interpolation Filter Coefficients
Lower Coefficient
Upper Coefficient
H(1)
H(43)
H(2)
H(42)
H(3)
H(41)
H(4)
H(40)
H(5)
H(39)
H(6)
H(38)
H(7)
H(37)
H(8)
H(36)
H(9)
H(35)
H(10)
H(34)
H(11)
H(33)
H(12)
H(32)
H(13)
H(31)
H(14)
H(30)
H(15)
H(29)
H(16)
H(28)
H(17)
H(27)
H(18)
H(26)
H(19)
H(25)
H(20)
H(24)
H(21)
H(23)
H(22)
Integer Value
9
0
–27
0
65
0
–131
0
239
0
–407
0
665
0
–1070
0
1764
0
–3273
0
10358
16384
Table 24. Stage 2 Interpolation Filter Coefficients
Lower Coefficient
Upper Coefficient
H(1)
H(19)
H(2)
H(18)
H(3)
H(17)
H(4)
H(16)
H(5)
H(15)
H(6)
H(14)
H(7)
H(13)
H(8)
H(12)
H(9)
H(11)
H(10)
Integer Value
19
0
–120
0
436
0
–1284
0
5045
8192
Table 25. Stage 3 Interpolation Filter Coefficients
Lower Coefficient
Upper Coefficient
H(1)
H(11)
H(2)
H(10)
H(3)
H(9)
H(4)
H(8)
H(5)
H(7)
H(6)
Integer Value
7
0
–53
0
302
512
0
0.5
–0.5
–0.4
–0.3
–0.2
–0.1
0
0.1
0.2
0.3
0.4
–140
0
–20
–40
–60
–80
–100
–120
Figure 34. ×2 Interpolation Filter Response
0
0.5
–0.5
–0.4
–0.3
–0.2
–0.1
0
0.1
0.2
0.3
0.4
–140
0
–20
–40
–60
–80
–100
–120
Figure 35. ×4 Interpolation Filter Response
0
0.5
–0.5
–0.4
–0.3
–0.2
–0.1
0
0.1
0.2
0.3
0.4
–140
0
–20
–40
–60
–80
–100
–120
Figure 36. ×8 Interpolation Filter Response
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