AD9235 데이터 시트보기 (PDF) - Analog Devices
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AD9235 Datasheet PDF : 41 Pages
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Data Sheet
AD9235
TYPICAL PERFORMANCE CHARACTERISTICS
AVDD = 3.0 V, DRVDD = 2.5 V, fSAMPLE = 65 MSPS with DCS disabled, TA = 25°C, 2 V differential input, AIN = −0.5 dBFS, VREF = 1.0 V,
unless otherwise noted.
0
SNR = 70.3dBc
SINAD = 70.2dBc
–20
ENOB = 11.4 BITS
THD = –86.3dBc
SFDR = 89.9dBc
–40
–60
–80
–100
–120
0
6.5
13.0
19.5
26.0
32.5
FREQUENCY (MHz)
Figure 9. Single Tone 8K FFT with fIN = 10 MHz
100
95 SFDR (2V DIFF)
90
85
80
SNR (2V SE)
75
70
65
SNR (2V DIFF)
60
55 SFDR (2V SE)
50
40
45
50
55
60
65
SAMPLE RATE (MSPS)
Figure 12. AD9235-65: Single Tone SNR/SFDR vs.
fCLK with fIN = Nyquist (32.5 MHz)
0
SNR = 69.4dBc
SINAD = 69.1dBc
–20
ENOB = 11.2 BITS
THD = –81.0dBc
SFDR = 83.8dBc
–40
–60
–80
–100
–120
65.0
71.5
78.0
84.5
91.0
FREQUENCY (MHz)
Figure 10. Single Tone 8K FFT with fIN = 70 MHz
100
95
90
85
SFDR (2V DIFF)
80
SNR (2V SE)
75
SNR (2V DIFF)
70
65
SFDR (2V SE)
60
55
50
20
25
30
35
40
SAMPLE RATE (MSPS)
Figure 13. AD9235-40: Single Tone SNR/SFDR vs. fCLK with fIN = Nyquist (20 MHz)
0
SNR = 68.5dBc
SINAD = 66.5dBc
ENOB = 10.8 BITS
–20
THD = –71.0dBc
SFDR = 71.2dBc
–40
–60
–80
–100
–120
97.5
104.0
110.5
117.0
FREQUENCY (MHz)
123.5
130.0
Figure 11. Single Tone 8K FFT with fIN = 100 MHz
100
95
SFDR (2V DIFF)
90
85
SFDR (2V SE)
80
75
SNR (2V SE)
70
65
SNR (2V DIFF)
60
55
50
0
5
10
15
20
SAMPLE RATE (MSPS)
Figure 14. AD9235-20: Single Tone SNR/SFDR vs. fCLK with fIN = Nyquist (10 MHz)
Rev. D | Page 11 of 40
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