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AD9776-EB 데이터시트(PDF) 21 Page - Analog Devices

부품명 AD9776-EB
상세설명  Dual 12-/14-/16-Bit, 1 GSPS, Digital-to-Analog Converters
PDF  56 Pages
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제조업체  AD [Analog Devices]
홈페이지  http://www.analog.com
Logo AD - Analog Devices

AD9776-EB 데이터시트(HTML) 21 Page - Analog Devices

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AD9776/AD9778/AD9779
Rev. A | Page 21 of 56
100
50
0
400
fOUT (MHz)
90
80
70
60
40
80
120
160
200
240
280
320
360
4
× 200MSPS
4
× 150MSPS
4
× 100MSPS
Figure 38. AD9778 IMD, 4× Interpolation
100
50
0
100
fOUT (MHz)
90
80
70
60
20
40
60
80
fDATA = 250MSPS
fDATA = 200MSPS
fDATA = 160MSPS
Figure 39. AD9778 In-Band SFDR, 2× Interpolation
–90
0
250
fOUT (MHz)
–70
–80
–60
25
50
75
100
125
150
175
200
225
1ST ADJ CHAN
2ND ADJ CHAN
3RD ADJ CHAN
Figure 40. AD9778 ACLR, Single-Carrier WCDMA, 4× Interpolation,
fDATA = 122.88 MSPS, Amplitude = −3 dBFS
SPAN 50MHz
SWEEP 162.2ms (601 pts)
VBW 300kHz
CENTER 143.88MHz
*RES BW 30kHz
RMS RESULTS
CARRIER POWER
–12.74dBm/
3.84000MHz
FREQ OFFSET
5.000MHz
10.00MHz
15.00MHz
REF BW
3.884MHz
3.840MHz
3.840MHz
dBc
–76.49
–80.13
–80.90
dBm
–89.23
–92.87
–93.64
LOWER
dBc
–76.89
–80.02
–79.53
dBm
–89.63
–92.76
–92.27
UPPER
REF –25.39dBm
*AVG
Log
10dB/
PAVG
10
W1 S2
*ATTEN 4dB
Figure 41. AD9778 ACLR, fDATA = 122.88 MSPS, 4× Interpolation,
fDAC/4 Modulation
–150
–170
0
100
fOUT (MHz)
–154
–158
–162
–166
20
40
60
80
fDAC = 800MSPS
fDAC = 400MSPS
fDAC = 200MSPS
Figure 42. AD9778 Noise Spectral Density vs. fDAC Eight-Tone Input
with 500 kHz Spacing, fDATA = 200 MSPS
–150
–170
0
100
fOUT (MHz)
–154
–158
–162
–166
20
40
60
80
fDAC = 800MSPS
fDAC = 400MSPS
fDAC = 200MSPS
Figure 43. AD9778 Noise Spectral Density vs. fDAC Single-Tone Input
at −6 dBFS, fDATA = 200 MSPS



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