Datasheet

Data Sheet AD9613
Rev. C | Page 19 of 36
0
–20
–40
–60
–80
–100
–120
–140
10
0
20 30 40 50 60 70 80
90 100
FREQUENCY (MHz)
AMPLITUDE (dBFS)
09637-031
210MSPS
89.12MHz @ –7dBFS
92.12MHz @ –7dBFS
SFDR = 90dBc (97dBFS)
Figure 24. AD9613-210 Two-Tone FFT with f
IN1
= 89.12, f
IN2
= 92.12 MHz,
f
S
= 210 MSPS
0
–20
–40
–60
–80
–100
–120
–140
100 20
30
40 50
60 70 80
90
100
FREQUENCY (MHz)
AMPLITUDE (dBFS)
09637-032
210MSPS
184.12MHz @ –7dBFS
187.12MHz @ –7dBFS
SFDR = 88dBc (95dBFS)
Figure 25. AD9613-210 Two-Tone FFT with f
IN1
= 184.12, f
IN2
= 187.12 MHz,
f
S
= 210 MSPS
100
95
90
85
80
75
70
65
140 160120100806040 180 200
SAMPLE RATE (MSPS)
SNR/SFDR (dBc AND dBFS)
09637-033
SNR, CHANNEL B
SFDR, CHANNEL B
SNR, CHANNEL A
SFDR, CHANNEL A
Figure 26. AD9613-210 Single-Tone SNR/SFDR vs. Sample Rate (f
S
)
with f
IN
= 90 MHz
12,000
14,000
10,000
8000
6000
4000
2000
0
N + 1
N
N – 1
N – 2
OUTPUT CODE
NUMBER OF HITS
09637-034
0.437LSB rms
16,384 TOTAL HITS
Figure 27. AD9613-210 Grounded Input Histogram
0
–20
THIRD HARMONIC
SECOND HARMONIC
–40
–60
–80
–100
–120
–140
100 20 30 40 50 60 70 80 90 100 110 120
FREQUENCY (MHz)
AMPLITUDE (dBFS)
09637-035
250MSPS
90.1MHz @ –1dBFS
SNR = 68.9dB (69.9dBFS)
SFDR = 88dBc
Figure 28. AD9613-250 Single-Tone FFT with f
IN
= 90.1 MHz
0
–20
THIRD HARMONIC
SECOND HARMONIC
–40
–60
–80
–100
–120
–140
10
0 20 30 40 50 60
70 80 90 100 110 120
FREQUENCY (MHz)
AMPLITUDE (dBFS)
09637-036
250MSPS
185.1MHz @ –1dBFS
SNR = 68.1dB (69.1dBFS)
SFDR = 85dBc
Figure 29. AD9613-250 Single-Tone FFT with f
IN
= 185.1 MHz