Datasheet

AD9645 Data Sheet
Rev. 0 | Page 12 of 36
TYPICAL PERFORMANCE CHARACTERISTICS
AD9645-80
0
–140
–120
–100
–80
–60
–40
–20
0 10 20 30 40
AMPLITUDE (dBFS)
FREQUENCY (MHz)
80MSPS
9.7MHz AT –1dBFS
SNR = 74.6dB (75.6dBFS)
SFDR = 95.2dBc
10537-009
Figure 9. Single-Tone 16k FFT with f
IN
= 9.7 MHz, f
SAMPLE
= 80 MSPS
0
–140
–120
–100
–80
–60
–40
–20
0 10 20 30 40
AMPLITUDE (dBFS)
FREQUENCY (MHz)
80MSPS
30.5MHz AT –1dBFS
SNR = 74.3dB (75.3dBFS)
SFDR = 90.9dBc
10537-010
Figure 10. Single-Tone 16k FFT with f
IN
= 30.5 MHz, f
SAMPLE
= 80 MSPS
0
–140
–120
–100
–80
–60
–40
–20
0 10 20 30 40
AMPLITUDE (dBFS)
FREQUENCY (MHz)
80MSPS
70.2MHz AT –1dBFS
SNR = 73.4dB (74.4dBFS)
SFDR = 95.3dBc
10537-011
Figure 11. Single-Tone 16k FFT with f
IN
= 70.2 MHz, f
SAMPLE
= 80 MSPS
0
–140
–120
–100
–80
–60
–40
–20
0 10 20 30 40
AMPLITUDE (dBFS)
FREQUENCY (MHz)
80MSPS
139.5MHz AT –1dBFS
SNR = 71dB (72dBFS)
SFDR = 80.8dBc
10537-012
Figure 12. Single-Tone 16k FFT with f
IN
= 139.5 MHz, f
SAMPLE
= 80 MSPS
0
–140
–120
–100
–80
–60
–40
–20
0 10 20 30 40
AMPLITUDE (dBFS)
FREQUENCY (MHz)
80MSPS
200.5MHz AT –1dBFS
SNR = 68.9dB (69.9dBFS)
SFDR = 81.7dBc
10537-013
Figure 13. Single-Tone 16k FFT with f
IN
= 200.5 MHz, f
SAMPLE
= 80 MSPS
0
–15
–30
–45
–60
–75
–105
–90
–120
–135
0 84 12 16 2820 24 32 4036
AMPLITUDE (dBFS)
FREQUENCY (MHz)
10537-014
80MSPS
200.5MHz AT –1dBFS
SNR = 70.8dB (71.8dBFS)
SFDR = 81.5dBc
Figure 14. Single-Tone 16k FFT with f
IN
= 200.5 MHz, f
SAMPLE
= 80 MSPS,
Clock Divide = Divide-by-8