AD9260AS Analog Devices Inc, AD9260AS Datasheet - Page 8

• Manufacturer Part Number: AD9260AS
• Description: IC ADC CMOS 16BIT OVRSAMP 44MQFP
• Manufacturer: Analog Devices Inc

Specifications of AD9260AS

• Rohs Status: RoHS non-compliant
• Number Of Bits: 16
• Sampling Rate (per Second): 20M
• Data Interface: Parallel
• Number Of Converters: 1
• Power Dissipation (max): 585mW
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 44-MQFP, 44-PQFP

AD9260
Table 5. Integer Filter Coefficients for First Stage
Decimation Filter (23-Tap Half-Band FIR Filter)
Lower Coefficient
H(1)
H(2)
H(3)
H(4)
H(5)
H(6)
H(7)
H(8)
H(9)
H(10)
H(11)
H(12)
Table 6. Integer Filter Coefficients for Second Stage
Decimation Filter (43-Tap Half-Band FIR Filter)
Lower Coefficient
H(1)
H(2)
H(3)
H(4)
H(5)
H(6)
H(7)
H(8)
H(9)
H(10)
H(11)
H(12)
H(13)
H(14)
H(15)
H(16)
H(17)
H(18)
H(19)
H(20)
H(21)
H(22)
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).
Upper Coefficient
H(23)
H(22)
H(21)
H(20)
H(19)
H(18)
H(17)
H(16)
H(15)
H(14)
H(13)
Upper Coefficient
H(43)
H(42)
H(41)
H(40)
H(39)
H(38)
H(37)
H(36)
H(35)
H(34)
H(33)
H(32)
H(31)
H(30)
H(29)
H(28)
H(27)
H(26)
H(25)
H(24)
H(23)
Integer Value
–1
0
13
0
–66
0
224
0
–642
0
2496
4048
Integer Value
3
0
–12
0
35
0
–83
0
172
0
–324
0
572
0
–976
0
1680
0
–3204
0
10274
16274
Rev. C | Page 8 of 44
Table 7. Integer Filter Coefficients for Third Stage
Decimation Filter (107-Tap Half-Band FIR Filter)
Lower Coefficient
H(1)
H(2)
H(3)
H(4)
H(5)
H(6)
H(7)
H(8)
H(9)
H(10)
H(11)
H(12)
H(13)
H(14)
H(15)
H(16)
H(17)
H(18)
H(19)
H(20)
H(21)
H(22)
H(23)
H(24)
H(25)
H(26)
H(27)
H(28)
H(29)
H(30)
H(31)
H(32)
H(33)
H(34)
H(35)
H(36)
H(37)
H(38)
H(39)
H(40)
H(41)
H(42)
H(43)
H(44)
H(45)
H(46)
H(47)
H(48)
H(49)
H(50)
H(51)
H(52)
H(53)
H(54)
Upper Coefficient
H(107)
H(106)
H(105)
H(104)
H(103)
H(102)
H(101)
H(100)
H(99)
H(98)
H(97)
H(96)
H(95)
H(94)
H(93)
H(92)
H(91)
H(90)
H(89)
H(88)
H(87)
H(86)
H(85)
H(84)
H(83)
H(82)
H(81)
H(80)
H(79)
H(78)
H(77)
H(76)
H(75)
H(74)
H(73)
H(72)
H(71)
H(70)
H(69)
H(68)
H(67)
H(66)
H(65)
H(64)
H(63)
H(62)
H(61)
H(60)
H(59)
H(58)
H(57)
H(56)
H(55)
Integer Value
–1
0
2
0
–2
0
3
0
–3
0
1
0
3
0
–12
0
27
0
–50
0
85
0
–135
0
204
0
–297
0
420
0
–579
0
784
0
–1044
0
1376
0
–1797
0
2344
0
–3072
0
4089
0
–5624
0
8280
0
–14268
0
43520
68508