AD9445 Datasheet, PDF (20/40 Pages) Analog Devices – 14-Bit, 105/125 MSPS, IF Sampling ADC

AD9445
0
–10
125MSPS
30.3MHz @ –7.0dBFS
–20
31.3MHz @ –7.0dBFS
SFDR = 102dBFS
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
–130
–140
0
13.625
27.250
40.875
FREQUENCY (MHz)
54.500
Figure 36. AD9445-125 64k Point Two-Tone FFT/
125 MSPS/30.3 MHz, 31.3 MHz
0
–10
–20
–30
SFDR dBc
–40
–50
WORST IMD3 dBc
–60
–70
–80
–90
SFDR dBFS
–100
–110
WORST IMD3 dBFS
–120
–100 –90 –80 –70 –60 –50 –40 –30 –20 –10 0
FUNDAMENTAL LEVEL (dB)
Figure 37. AD9445-125 Two-Tone SFDR vs. Analog Input Level
125 MSPS/30.3 MHz, 31.3 MHz
0
–10
–20
SFDR dBc
–30
–40
–50
WORST IMD3 dBc
–60
–70
–80
–90
–100
SFDR dBFS
–110
WORST IMD3 dBFS
–120
–100 –90 –80 –70 –60 –50 –40 –30 –20 –10 0
FUNDAMENTAL LEVEL (dB)
Figure 39. AD9445-125 Two-Tone SFDR vs. Analog Input Level
125 MSPS/170.3 MHz, 171.3 MHz
0
–10
105MSPS
30.3MHz @ –7.0dBFS
–20
31.3MHz @ –7.0dBFS
SFDR = 102dBFS
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
–130
–140
0
13.125
26.250
39.375
FREQUENCY (MHz)
52.500
Figure 40. AD9445-105 64k Point Two-Tone FFT/105 MSPS/30.3 MHz, 31.3 MHz
0
–10
125MSPS
170.3MHz @ –7.0dBFS
–20 ^{171.3MHz @ –7.0dBFS}
SFDR = 91dBFS
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
–130
–140
0
13.625
27.250
40.875
FREQUENCY (MHz)
54.500
Figure 38. AD9445-125 64k Point Two-Tone FFT/
125 MSPS/170.3 MHz, 171.3 MHz
0
–10
–20
–30
SFDR dBc
–40
–50
–60
WORST IMD3 dBc
–70
–80
–90
–100
SFDR dBFS
–110
WORST IMD3 dBFS
–120
–100 –90 –80 –70 –60 –50 –40 –30 –20 –10 0
FUNDAMENTAL LEVEL (dB)
Figure 41. AD9445-105 Two-Tone SFDR vs. Analog Input Level
105 MSPS/30.3 MHz, 31.3 MHz
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