參數(shù)資料
型號: AD9774ASZRL
廠商: Analog Devices Inc
文件頁數(shù): 20/24頁
文件大?。?/td> 0K
描述: IC DAC 14BIT 32MSPS 44MQFP
產(chǎn)品變化通告: Product Discontinuance 27/Oct/2011
標(biāo)準(zhǔn)包裝: 800
系列: TxDAC+®
設(shè)置時間: 35ns
位數(shù): 14
數(shù)據(jù)接口: 并聯(lián)
轉(zhuǎn)換器數(shù)目: 1
電壓電源: 模擬和數(shù)字
功率耗散(最大): 1.13W
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)
輸出數(shù)目和類型: 2 電流,單極;2 電流,雙極
采樣率(每秒): 32M
AD9774
–5–
REV. B
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the AD9774 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
Table I. Integer Filter Coefficients for First Stage Interpola-
tion Filter (55-Tap Halfband FIR Filter)
Lower
Upper
Integer
Coefficient
Value
H(1)
H(55)
–1
H(2)
H(54)
0
H(3)
H(53)
3
H(4)
H(52)
0
H(5)
H(51)
–7
H(6)
H(50)
0
H(7)
H(49)
15
H(8)
H(48)
0
H(9)
H(47)
–28
H(10)
H(46)
0
H(11)
H(45)
49
H(12)
H(44)
0
H(13)
H(43)
–81
H(14)
H(42)
0
H(15)
H(41)
128
H(16)
H(40)
0
H(17)
H(39)
–196
H(18)
H(38)
0
H(19)
H(37)
295
H(20)
H(36)
0
H(21)
H(35)
–447
H(22)
H(34)
0
H(23)
H(33)
706
H(24)
H(32)
0
H(25)
H(31)
–1274
H(26)
H(30)
0
H(27)
H(29)
3976
H(28)
6276
Table II. Integer Filter Coefficients for Second Stage Inter-
polation Filter (23-Tap Halfband FIR Filter)
Lower
Upper
Integer
Coefficient
Value
H(1)
H(23)
–6
H(2)
H(22)
0
H(3)
H(21)
37
H(4)
H(20)
0
H(5)
H(19)
–125
H(6)
H(18)
0
H(7)
H(17)
316
H(8)
H(16)
0
H(9)
H(15)
–736
H(10)
H(14)
0
H(11)
H(13)
2562
H(12)
4096
FREQUENCY – DC TO 2
fCLOCK
0
–20
–180
0
0.5
OUTPUT
dBFS
–80
–120
–140
–160
–40
–60
–100
1.0
1.5
2.0
Figure 2a. FIR Filter Frequency Response
TIME – Samples
1.0
–0.4
0
80
10
NORMALIZED
OUTPUT
20
30
40
50
60
70
0.8
0.4
0.2
0.0
–0.2
0.6
Figure 2b. FIR Filter Impulse Response
WARNING!
ESD SENSITIVE DEVICE
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