FOUT (MHz) AC L R ( d B" />
參數(shù)資料
型號: AD9776A-DPG2-EBZ
廠商: Analog Devices Inc
文件頁數(shù): 16/56頁
文件大?。?/td> 0K
描述: BOARD EVALUATION FOR AD9776A
標準包裝: 1
系列: *
DAC 的數(shù)量: 2
位數(shù): 12
采樣率(每秒): 1G
數(shù)據(jù)接口: 并聯(lián)
DAC 型: 電流
工作溫度: -40°C ~ 85°C
已供物品: *
已用 IC / 零件: AD9776A
AD9776A/AD9778A/AD9779A
Rev. B | Page 23 of 56
–90
0
250
FOUT (MHz)
AC
L
R
(
d
Bc
)
–55
25
50
75
100
125
150
175
200
225
–60
–65
–70
–75
–80
–85
06
45
2-
0
45
FIRST ADJACENT CHANNEL
SECOND ADJACENT
CHANNEL
THIRD ADJACENT
CHANNEL
Figure 48. AD9776A ACLR vs. fOUT,
fDATA = 122.88 MSPS, 4× Interpolation, fDAC/4 Modulation
SPAN 50MHz
SWEEP 162.2ms (601 pts)
VBW 300kHz
CENTER 143.88MHz
*RES BW 30kHz
RMS RESULTS
CARRIER POWER
–12.67dBm/
3.84000MHz
FREQ OFFSET
5.000MHz
10.00MHz
15.00MHz
REF BW
3.884MHz
3.840MHz
dBc
–75.00
–78.05
–77.73
dBm
–87.67
–90.73
–90.41
LOWER
dBc
–75.30
–77.99
–77.50
dBm
–87.97
–90.66
–90.17
UPPER
REF –25.29dBm
*AVG
log
10dB
PAVG
10
W1 S2
*ATTEN 4dB
0
645
2-
0
46
Figure 49. AD9776A Single Carrier W-CDMA,
4× Interpolation, fDATA = 122.88 MSPS, Amplitude = 3 dBFS
–150
–170
0
100
fOUT (MHz)
NS
D
(
d
B
m
/Hz
)
–154
–158
–162
–166
20
40
60
80
fDAC = 800MSPS
fDAC = 400MSPS
fDAC = 200MSPS
10
30
50
70
90
06
45
2-
0
47
Figure 50. AD9776A Noise Spectral Density vs. fOUT,
Eight-Tone Input with 500 kHz Spacing, fDATA = 200 MSPS
–150
–170
0
100
fOUT (MHz)
NS
D
(
d
B
m
/Hz
)
–154
–158
–162
–166
20
40
60
80
fDAC = 800MSPS
fDAC = 400MSPS
fDAC = 200MSPS
10
30
50
70
90
06
45
2-
0
48
Figure 51. AD9776A Noise Spectral Density vs. fOUT,
Single-Tone Input at 6 dBFS, fDATA = 200 MSPS
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