參數(shù)資料
型號(hào): AD9260ASZRL
廠商: Analog Devices Inc
文件頁(yè)數(shù): 43/44頁(yè)
文件大?。?/td> 0K
描述: IC ADC 16BIT 2.5MHZ 44MQFP
標(biāo)準(zhǔn)包裝: 800
位數(shù): 16
采樣率(每秒): 20M
數(shù)據(jù)接口: 并聯(lián)
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 585mW
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 44-QFP
供應(yīng)商設(shè)備封裝: 44-MQFP(10x10)
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 2 個(gè)單端,單極;1 個(gè)差分,單極
AD9260
Rev. C | Page 8 of 44
Table 5. Integer Filter Coefficients for First Stage
Decimation Filter (23-Tap Half-Band FIR Filter)
Lower Coefficient
Upper Coefficient
Integer Value
H(1)
H(23)
–1
H(2)
H(22)
0
H(3)
H(21)
13
H(4)
H(20)
0
H(5)
H(19)
–66
H(6)
H(18)
0
H(7)
H(17)
224
H(8)
H(16)
0
H(9)
H(15)
–642
H(10)
H(14)
0
H(11)
H(13)
2496
H(12)
4048
Table 6. Integer Filter Coefficients for Second Stage
Decimation Filter (43-Tap Half-Band FIR Filter)
Lower Coefficient
Upper Coefficient
Integer Value
H(1)
H(43)
3
H(2)
H(42)
0
H(3)
H(41)
–12
H(4)
H(40)
0
H(5)
H(39)
35
H(6)
H(38)
0
H(7)
H(37)
–83
H(8)
H(36)
0
H(9)
H(35)
172
H(10)
H(34)
0
H(11)
H(33)
–324
H(12)
H(32)
0
H(13)
H(31)
572
H(14)
H(30)
0
H(15)
H(29)
–976
H(16)
H(28)
0
H(17)
H(27)
1680
H(18)
H(26)
0
H(19)
H(25)
–3204
H(20)
H(24)
0
H(21)
H(23)
10274
H(22)
16274
NOTE:
The composite filter undecimated coefficients (i.e.,
impulse response) in the 4× decimation mode can be
determined by convolving the first stage filter taps with a
“zero stuffed” version of the second stage filter taps (i.e., insert
one zero between samples). Similarly, the composite filter
coefficients in the 8× decimation mode can be determined by
convolving the taps of the composite 4× decimation mode (as
previously determined) with a “zero stuffed” version of the third
stage filter taps (i.e., insert three zeros between samples).
Table 7. Integer Filter Coefficients for Third Stage
Decimation Filter (107-Tap Half-Band FIR Filter)
Lower Coefficient
Upper Coefficient
Integer Value
H(1)
H(107)
–1
H(2)
H(106)
0
H(3)
H(105)
2
H(4)
H(104)
0
H(5)
H(103)
–2
H(6)
H(102)
0
H(7)
H(101)
3
H(8)
H(100)
0
H(9)
H(99)
–3
H(10)
H(98)
0
H(11)
H(97)
1
H(12)
H(96)
0
H(13)
H(95)
3
H(14)
H(94)
0
H(15)
H(93)
–12
H(16)
H(92)
0
H(17)
H(91)
27
H(18)
H(90)
0
H(19)
H(89)
–50
H(20)
H(88)
0
H(21)
H(87)
85
H(22)
H(86)
0
H(23)
H(85)
–135
H(24)
H(84)
0
H(25)
H(83)
204
H(26)
H(82)
0
H(27)
H(81)
–297
H(28)
H(80)
0
H(29)
H(79)
420
H(30)
H(78)
0
H(31)
H(77)
–579
H(32)
H(76)
0
H(33)
H(75)
784
H(34)
H(74)
0
H(35)
H(73)
–1044
H(36)
H(72)
0
H(37)
H(71)
1376
H(38)
H(70)
0
H(39)
H(69)
–1797
H(40)
H(68)
0
H(41)
H(67)
2344
H(42)
H(66)
0
H(43)
H(65)
–3072
H(44)
H(64)
0
H(45)
H(63)
4089
H(46)
H(62)
0
H(47)
H(61)
–5624
H(48)
H(60)
0
H(49)
H(59)
8280
H(50)
H(58)
0
H(51)
H(57)
–14268
H(52)
H(56)
0
H(53)
H(55)
43520
H(54)
68508
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