Data Sheet
0
fDAC = 1966MHz
fDAC = 2456MHz
–20
–40
–60
–80
–100
0
100
200
300
400
500
fOUT (MHz)
Figure 10. Two-Tone Third IMD (IMD3) vs. fOUT,
fDAC = 1966 MHz and 2456 MHz
0
0dBFS
–6dBFS
–9dBFS
–12dBFS
–20
–40
–60
–80
–100
0
100
200
300
400
500
fOUT (MHz)
Figure 11. Two-Tone Third IMD (IMD3) vs. fOUT over Digital Back Off,
fDAC = 983 MHz, Each Tone Is at −6 dBFS
0
0dBFS
–6dBFS
–9dBFS
–12dBFS
–20
–40
–60
–80
–100
0
100
200
300
400
500
fOUT (MHz)
Figure 12. Two-Tone Third IMD (IMD3) vs. fOUT over Digital Back Off,
fDAC = 1966 MHz, Each Tone Is at −6 dBFS
0
fDAC = 983MHz
fDAC = 1966MHz
–20
1MHz TONE SPACING
16MHz TONE SPACING
35MHz TONE SPACING
–40
AD9144
–60
–80
–100
0
100
200
300
400
500
fOUT (MHz)
Figure 13. Two-Tone Third IMD (IMD3) vs. fOUT over Tone Spacing at
0 dB Back Off, fDAC = 983 MHz and 1966 MHz
–130
–135
fDAC = 983MHz
fDAC = 1228MHz
fDAC = 1474MHz
–140
–145
–150
–155
–160
–165
–170
0
100
200
300
400
500
fOUT (MHz)
Figure 14. Single-Tone (0 dBFS) NSD vs. fOUT,
fDAC = 983 MHz, 1228 MHz, and 1474 MHz
–130
–135
fDAC = 1966MHz
fDAC = 2456MHz
–140
–145
–150
–155
–160
–165
–170
0
100
200
300
400
500
fOUT (MHz)
Figure 15. Single-Tone (0 dBFS) NSD vs. fOUT,
fDAC = 1966 MHz and 2456 MHz
Rev. B | Page 17 of 125