AD9650
120
100
80
60
40
20
0
105
100
95
SFDR (dBFS)
SNR (dBFS)
SFDR
SNR
90
SFDR (dBc)
SNR (dB)
85
80
75
85
90
95
100
105
110
115
120
125
–100 –90 –80 –70 –60 –50 –40 –30 –20 –10
0
SAMPLE RATE (MSPS)
INPUT AMPLITUDE (dBFS)
Figure 58. AD9650-105 Single-Tone SNR/SFDR vs. Sample Rate (fS)
with fIN = 30 MHz
Figure 55. AD9650-105 Single-Tone SNR/SFDR vs. Input Amplitude (AIN
)
with fIN = 30.3 MHz
0
120
105MSPS
30.8MHz @ –7dBFS
SFDR (dBFS) DITHER ON
115
110
105
100
95
25.4MHz @ –7dBFS
SFDR = 86.6dBc (93.6dBFS)
–20
–40
–60
SFDR (dBFS) DITHER OFF
–80
90
SNR (dBFS) DITHER OFF
–100
–120
–140
85
80
SNR (dBFS) DITHER ON
75
70
0
10
20
30
40
50
–100 –90 –80 –70 –60 –50 –40 –30 –20 –10
0
FREQUENCY (MHz)
INPUT AMPLITUDE (dBFS)
Figure 56. AD9650-105 Single Tone SNR/SFDR vs. Input Amplitude (AIN
)
Figure 59. AD9650-105 Two-Tone FFT with fIN1 = 25.4 MHz and fIN2 = 30.8 MHz
with fIN = 30.3 MHz with and Without Dither Enabled
0
100
95
90
85
80
75
70
65
100
90
80
70
60
50
40
30
20
10
0
–20
SFDR (dBc)
SFDR
–40
IMD3 (dBc)
–60
–80
SFDR (dBFS)
–100
SNR (–40°C)
SFDR (–40°C)
SNR
SNR (+25°C)
SFDR (+25°C)
–120
SNR (+85°C)
SFDR (+85°C)
IMD3 (dBFS)
–140
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
50
100
150
200
250
300
INPUT AMPLITUDE (dBFS)
INPUT FREQUENCY (MHz)
Figure 60. AD9650-105 Two-Tone SFDR/IMD3 vs. Input Amplitude (AIN
)
Figure 57. AD9650-105 Single-Tone SNR/SFDR vs. Input Frequency (fIN
)
with fIN1 = 25.4 MHz, fIN2 = 30.8 MHz, fS = 105 MSPS
Rev. 0 | Page 25 of 44
ADI [ ADI ]
