Datasheet

AD9609
Rev. 0 | Page 11 of 32
TYPICAL PERFORMANCE CHARACTERISTICS
AD9609-80
AVDD = 1.8 V; DRVDD = 1.8 V, maximum sample rate, 2 V p-p differential input, 1.0 V internal reference; AIN = −1.0 dBFS, 50% duty
cycle clock, DCS disabled, unless otherwise noted.
50 10152025303540
0
–20
–40
–60
–80
–100
–120
FREQUENCY (MHz)
AMPLITUDE (dB)
80MSPS
9.7MHz @ –1dBFS
SNR = 60.5dB (61.5dBFS)
SFDR = 80.3dBc
08541-033
Figure 4. AD9609-80 Single-Tone FFT with f
IN
= 9.7 MHz
0
–20
–40
–60
–80
–100
–120
50 10152025303540
FREQUENCY (MHz)
AMPLITUDE (dBFS)
80MSPS
70.3MHz @ –1dBFS
SNR = 60.4dB (61.4dBFS)
SFDR = 82.2dBc
08541-062
Figure 5. AD9609-80 Single-Tone FFT with f
IN
= 70.3 MHz
0
–15
–30
–45
–60
–75
–90
–105
–120
40 8 12 16 20 24 28 32 36 40
FREQUENCY (MHz)
AMPLITUDE (dB)
80MSPS
30.5MHz @ –7dBFS
32.5MHz @ –7dBFS
SFDR = 78dBc
F2 – F1
2F1 – F2
2F2 + F1
2F1 – F2
F1 + F2
08541-036
Figure 6. AD9609-80 Two-Tone FFT with f
IN1
= 30.5 MHz and f
IN2
= 32.5 MHz
0
–20
–40
–60
–80
–100
–120
50 10152025303540
FREQUENCY (MHz)
AMPLITUDE (dB)
80MSPS
30.5MHz @ –1dBFS
SNR = 60.5dB (61.5dBFS)
SFDR = 83.5dBc
08541-034
Figure 7. AD9609-80 Single-Tone FFT with f
IN
= 30.5 MHz
0
–20
–40
–60
–80
–100
–120
50 10152025303540
FREQUENCY (MHz)
AMPLITUDE (dBFS)
80MSPS
200MHz @ –1dBFS
SNR = 60.1dB (60.1dBFS)
SFDR = 74.176dBc
4
6
+
5
2
3
08541-134
Figure 8. AD9609-80 Single-Tone FFT with f
IN
= 200 MHz
–10
–30
–50
–70
–90
–110
–60 –54 –48 –42 –36 –30 –24 –18 –12 –6
INPUT AMPLITUDE (dBFS)
SFDR/IMD3 (dBFS/dBc)
SFDR (dBc)
SFDR (dBFS)
IMD3 (dBc)
IMD3 (dBFS)
08541-054
Figure 9. Two-Tone SFDR/IMD3 vs. Input Amplitude (AIN) with f
IN1
= 30.5 MHz
and f
IN2
= 32.5 MHz