Datasheet

Data Sheet AD9255
Rev. C | Page 19 of 44
0
–20
–40
–60
–80
–100
–120
–140
0
10
20 30
605040
AMPLITUDE (dBFS)
FREQUENCY (MHz)
SECOND
HARMONIC
THIRD
HARMONIC
125MSPS
2.4MHz @ –1dBFS
SNR = 77.2dB (78.2dBFS)
SFDR = 88dBc
08505-130
Figure 30. AD9255-125 Single-Tone FFT with f
IN
= 2.4 MHz
0
–20
–40
–60
–80
–100
–120
–140
0 10
20 30 60
50
40
AMPLITUDE (dBFS)
FREQUENCY (MHz)
125MSPS
30.3MHz @ –1dBFS
SNR = 77.7dB (78.7dBFS)
SFDR = 95dBc
08505-131
SECOND
HARMONIC
THIRD
HARMONIC
Figure 31. AD9255-125 Single-Tone FFT with f
IN
= 30.3 MHz
0
–20
–40
–60
–80
–100
–120
–140
0 10 20 30 605040
AMPLITUDE (dBFS)
FREQUENCY (MHz)
SECOND
HARMONIC
THIRD
HARMONIC
125MSPS
70.1MHz @ –1dBFS
SNR = 77.3dB (78.3dBFS)
SFDR = 93.9dBc
08505-132
Figure 32. AD9255-125 Single-Tone FFT with f
IN
= 70.1 MHz
0
–20
–40
–60
–80
–100
–120
–140
0 10 20
30 60
5040
AMPLITUDE (dBFS)
FREQUENCY (MHz)
SECOND
HARMONIC
THIRD
HARMONIC
125MSPS
140.1MHz @ –1dBFS
SNR = 76.2dB (77.2dBFS)
SFDR = 88.9dBc
08505-133
Figure 33. AD9255-125 Single-Tone FFT with f
IN
= 140.1 MHz
0
–20
–40
–60
–80
–100
–120
–140
0
10 20 30 605040
AMPLITUDE (dBFS)
FREQUENCY (MHz)
SECOND
HARMONIC
THIRD
HARMONIC
125MSPS
200.3MHz @ –1dBFS
SNR = 74.5dB (75.5dBFS)
SFDR = 80.0dBc
08505-134
Figure 34. AD9255-125 Single-Tone FFT with f
IN
= 200.3 MHz
0
–20
–40
–60
–80
–100
–120
–140
0 10 20 30 60
5040
AMPLITUDE (dBFS)
FREQUENCY (MHz)
SECOND
HARMONIC
THIRD
HARMONIC
125MSPS
220.1MHz @ –1dBFS
SNR = 74.2dB (75.2dBFS)
SFDR = 79.8dBc
08505-135
Figure 35. AD9255-125 Single-Tone FFT with f
IN
= 220.1 MHz