AD9059
0
–10
–20
–30
–40
ENCODE = 60MSPS
ANALOG IN = 10.3MHz, –0.5dBFS
SINAD = 43.9dB
ENOB = 7.0 BITS
SNR = 45.1dB
–30
–35
–40
–45
2ND HARMONIC
dB
–50
–55
ENCODE = 60MSPS
AIN = –0.5dBFS
dB
–50
–60
–70
–80
–90
–60
3RD HARMONIC
–65
–70
0
FREQUENCY – MHz
30
0
20
40
60
80
100
120
140
160
ANALOG INPUT FREQUENCY – MHz
Figure 2. FFT Spectral Plot 60 MSPS, 10.3 MHz
Figure 5. Harmonic Distortion vs. AIN Frequency
0
–10
–20
–30
–40
ENCODE = 60MSPS
ANALOG IN = 76MHz, –0.5dBFS
SINAD = 43.0dB
ENOB = 6.85 BITS
SNR = 44.1dB
0
–10
–20
–30
–40
ENCODE = 60MSPS
F1 IN = 9.5MHz @ –7.0dBFS
F2 IN = 9.9MHz @ –7.0dBFS
2F1 - F2 = –52.0dBc
2F2 - F1 = –53.0dBc
dB
–50
–60
–70
–80
–90
dB
–50
–60
–70
–80
–90
0
FREQUENCY – MHz
30
0
10
20
FREQUENCY – MHz
30
Figure 3. Spectral Plot 60 MSPS, 76 MHz
Figure 6. Two-Tone IMD
46
SNR
44
42
40
dB
38
36
34
32
30
54
AIN = 10.3MHz, –0.5dBFS
48
SNR
SINAD
42
SINAD
36
dB
80
100
120
140
160
ENCODE = 60MSPS
AIN = –0.5dBFS
30
24
18
12
6
5
10
20
30
40
50
60
ENCODE RATE – MSPS
70
80
90
0
20
40
60
ANALOG INPUT FREQUENCY – MHz
Figure 4. SINAD/SNR vs. AIN Frequency
Figure 7. SINAD/SNR vs. Encode Rate
REV. 0
–5–
AD [ ANALOG DEVICES ]
