AD6653 Просмотр технического описания (PDF) - Analog Devices
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AD6653 Datasheet PDF : 80 Pages
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AD6653
TYPICAL PERFORMANCE CHARACTERISTICS
AVDD = 1.8 V, DVDD = 1.8 V, DRVDD = 1.8 V, sample rate = 150 MSPS, DCS enabled, 1.0 V internal reference, 2 V p-p differential
input, VIN = −1.0 dBFS, 64k sample, TA = 25°C, NCO enabled, FIR filter enabled, unless otherwise noted. In the FFT plots that follow,
the location of the second and third harmonics is noted when they fall in the pass band of the filter.
0
150MSPS
0
150MSPS
2.4MHz @ –1dBFS
140.1MHz @ –1dBFS
–20
SNR = 70.9dBc (71.9dBFS)
–20 SNR = 70.6dBc (71.6dBFS)
SFDR = 83.2dBc
SFDR = 82.9dBc
fNCO = 18.75MHz
fNCO = 126MHz
–40
–40
SECOND HARMONIC
–60
–80
THIRD HARMONIC
–60
THIRD HARMONIC SECOND HARMONIC
–80
–100
–100
–120
–120
–140
0
5
10
15
20
25
30
35
FREQUENCY (MHz)
Figure 19. AD6653-150 Single-Tone FFT with fIN = 2.4 MHz, fNCO = 18.75 MHz
–140
0
5
10
15
20
25
30
35
FREQUENCY (MHz)
Figure 22. AD6653-150 Single-Tone FFT with fIN = 140.1 MHz, fNCO = 126 MHz
0
150MSPS
30.3MHz @ –1dBFS
–20 SNR = 71.0dBc (72.0dBFS)
SFDR = 92.3dBc
fNCO = 24MHz
–40
–60
–80
–100
–120
–140
0
5
10
15
20
25
30
35
FREQUENCY (MHz)
Figure 20. AD6653-150 Single-Tone FFT with fIN = 30.3 MHz, fNCO = 24 MHz
0
150MSPS
70.1MHz @ –1dBFS
–20 SNR = 70.8dBc (71.8dBFS)
SFDR = 82.9dBc
fNCO = 56MHz
–40
–60
THIRD HARMONIC
–80
–100
–120
–140
0
5
10
15
20
25
30
35
FREQUENCY (MHz)
Figure 21. AD6653-150 Single-Tone FFT with fIN = 70.1 MHz, fNCO = 56 MHz
0
150MSPS
220.1MHz @ –1dBFS
–20 SNR = 70.0dBc (71.0dBFS)
SFDR = 80.9dBc
fNCO = 205MHz
–40
–60
THIRD HARMONIC
–80
–100
–120
–140
0
5
10
15
20
25
30
35
FREQUENCY (MHz)
Figure 23. AD6653-150 Single-Tone FFT with fIN = 220.1 MHz, fNCO = 205 MHz
0
150MSPS
332.1MHz @ –1dBFS
–20 SNR = 69.4dBc (70.4dBFS)
SFDR = 91.2dBc
fNCO = 321.5MHz
–40
–60
–80
–100
–120
–140
0
5
10
15
20
25
30
35
FREQUENCY (MHz)
Figure 24. AD6653-150 Single-Tone FFT with fIN = 332.1 MHz,
fNCO = 321.5 MHz
Rev. 0 | Page 19 of 80
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