TMIN to T
參數(shù)資料
型號: AD9772A-EBZ
廠商: Analog Devices Inc
文件頁數(shù): 39/40頁
文件大?。?/td> 0K
描述: BOARD EVAL FOR AD9772A
產(chǎn)品培訓(xùn)模塊: DAC Architectures
標(biāo)準(zhǔn)包裝: 1
系列: TxDAC+®
DAC 的數(shù)量: 1
位數(shù): 14
采樣率(每秒): 160M
數(shù)據(jù)接口: 并聯(lián)
設(shè)置時(shí)間: 11ns
DAC 型: 電流
工作溫度: -40°C ~ 85°C
已供物品:
已用 IC / 零件: AD9772A
AD9772A
Rev. C | Page 8 of 40
DIGITAL FILTER SPECIFICATIONS
TMIN to TMAX, AVDD = 3.3 V, CLKVDD = 3.3 V, PLLVDD = 0 V, DVDD = 3.3 V, IOUTFS = 20 mA, differential transformer-coupled output,
50 Ω doubly terminated, unless otherwise noted.
Table 4.
Parameter
Min
Typ
Max
Unit
MAXIMUM INPUT DATA RATE (fDATA)
150
MSPS
DIGITAL FILTER CHARACTERISTICS
Pass-Bandwidth1: 0.005 dB
0.401
fOUT/fDATA
Pass-Bandwidth: 0.01 dB
0.404
fOUT/fDATA
Pass-Bandwidth: 0.1 dB
0.422
fOUT/fDATA
Pass-Bandwidth: 3 dB
0.479
fOUT/fDATA
LINEAR PHASE (FIR IMPLEMENTATION)
STOP BAND REJECTION
73
dB
0.606 fCLOCK to 1.394 fCLOCK
11
Input clocks
GROUP DELAY2
IMPULSE RESPONSE DURATION
40 dB
36
Input clocks
60 dB
42
Input clocks
1 Excludes sin(x)/x characteristic of DAC.
2 Defined as the number of data clock cycles between impulse input and peak of output response.
FREQUENCY (DC TO
fDATA)
0
–140
0
1.0
0. 1
OU
T
P
U
T
(
d
B
)
0. 2
0.3
0. 4
0.5
0.6
0.7
0.8
0.9
–20
–40
–60
–80
–100
–120
0
2
253
-00
4
Figure 4. FIR Filter Frequency Response—Baseband Mode
TIME (Samples)
1.0
–0.4
0
5
NO
RM
AL
IZ
E
D
O
U
T
P
U
T
10
15
20
25
30
35
40
45
0.8
0.6
0.4
0.2
0
–0.2
022
53
-00
5
Figure 5. FIR Filter Impulse Response—Baseband Mode
Table 5. Integer Filter Coefficients for Interpolation Filter
(43-Tap Half-Band FIR Filter)
Lower
Coefficient
Upper
Coefficient
Integer
Value
H(1)
H(43)
10
H(2)
H(42)
0
H(3)
H(41)
31
H(4)
H(40)
0
H(5)
H(39)
69
H(6)
H(38)
0
H(7)
H(37)
138
H(8)
H(36)
0
H(9)
H(35)
248
H(10)
H(34)
0
H(11)
H(33)
419
H(12)
H(32)
0
H(13)
H(31)
678
H(14)
H(30)
0
H(15)
H(29)
1083
H(16)
H(28)
0
H(17)
H(27)
1776
H(18)
H(26)
0
H(19)
H(25)
3282
H(20)
H(24)
0
H(21)
H(23)
10,364
H(22)
16,384
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