AD9433 Analog Devices, AD9433 Datasheet - Page 11

• Manufacturer Part Number: AD9433
• Description: 12-Bit 105/125 MSPS Analog-To-Digital IF Sampling Converter
• Manufacturer: Analog Devices

Specifications of AD9433

• Resolution (bits): 12bit
• # Chan: 1
• Sample Rate: 125MSPS
• Interface: Par
• Analog Input Type: Diff-Uni
• Ain Range: 2 V p-p
• Adc Architecture: Pipelined
• Pkg Type: QFP

Figure 22. FFT: f
Figure 23. FFT: f
Figure 24. FFT: f
–100
–110
–120
–100
–110
–120
–100
–110
–120
–10
–20
–30
–40
–50
–60
–70
–80
–90
–10
–20
–30
–40
–50
–60
–70
–80
–90
–10
–20
–30
–40
–50
–60
–70
–80
–90
0
0
0
0
0
0
SNR = 65.5dB
SFDR = 78dBFS
SNR = 67dB
SFDR = 80dBFS
SNR = 66.8dB
SFDR = 83dBFS
6.2
S
S
S
= 105 MSPS, f
7.5
= 105 MSPS, f
= 125 MSPS, f
7.5
12.5
15.0
15.0
18.7
SFDR Mode Disabled
SFDR Mode Enabled
SFDR Mode Enabled
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
IN
IN
IN
25.0
= 70.3 MHz, Differential AIN @ −0.5 dBFS,
= 70.3 MHz, Differential AIN @ −0.5 dBFS,
= 70.3 MHz, Differential AIN @ −0.5 dBFS,
22.5
22.5
31.2
30.0
30.0
37.5
43.7
37.5
37.5
50.0
45.0
45.0
56.2
52.5
62.5
52.5
Rev. A | Page 11 of 20
Figure 27. Third-Order IMD vs. AIN Level, f
Figure 26. SNR and SFDR vs. AIN Level, f
–100
–110
–120
–110
–100
Differential AIN @ −7 dBFS for Each Tone, SFDR Mode Enabled
110
100
–10
–20
–30
–40
–50
–60
–70
–80
–90
–90
–80
–70
–60
–50
90
80
70
60
50
40
30
20
10
Figure 25. FFT: f
0
0
–90
–90
0
and 69.3 MHz, Differential AIN, SFDR Mode Enabled
80dBFS REFERENCE LINE
IMD3 = 85dBc
SNR (dBFS)
–80
–80
7.5
Differential AIN, SFDR Mode Enabled
–70
–70
S
15.0
= 105 MSPS, f
–60
–60
SFDR (dBc)
FREQUENCY (MHz)
AIN LEVEL (dBFS)
AIN LEVEL (dBFS)
22.5
SFDR (dBFS)
–50
–50
IN
= 69.3 MHz and 70.3 MHz,
–40
–40
30.0
S
= 105 MSPS, f
S
= 105 MSPS, f
–30
–30
f
f
DIFFERENTIAL AIN
SFDR ENABLED
S
IN
37.5
= 105MSPS
= 70.3MHz
–20
–20
IN
45.0
IN
= 70.3 MHz,
–10
–10
= 70.3 MHz
AD9433
52.5
0
0