Datasheet

AD9042
Rev. B | Page 8 of 24
TYPICAL PERFORMANCE CHARACTERISTICS
FREQUENCY (MHz)
0
–80
–120
–40
–100
–20
–60
POWER RELATIVE TO ADC FULL SCALE (dB)
ENCODE = 41MSPS
AIN = 1.2MHz
dc 4.1 8.2 12.3 16.4 20.5
2 3 4 5 6 7 8 9
00554-013
Figure 3. Single Tone at 1.2 MHz
FREQUENCY (MHz)
0
–80
–120
–40
–100
–20
–60
POWER RELATIVE TO ADC FULL SCALE (dB)
dc 4.1 8.2 12.3 16.4 20.5
ENCODE = 41MSPS
AIN = 9.6MHz
4 8 8 5 3 7 6 2
00554-014
Figure 4. Single Tone at 9.6 MHz
FREQUENCY (MHz)
0
–80
–120
–40
–100
–20
–60
POWER RELATIVE TO ADC FULL SCALE (dB)
dc 4.1 8.2 12.3 16.4 20.5
ENCODE = 41MSPS
AIN = 19.5MHz
2 4 6 8 9 7 5 3
00554-015
Figure 5. Single Tone at 19.5 MHz
ANALOG INPUT FREQUENCY (MHz)
WORST-CASE HARMONIC (dBc)
81
79
78
77
80
0 2 4 6 8 10 12 14 16 18 20
T = +85°C
T = –40°C
T = +25°C
ENCODE = 41MSPS
TEMP = –40°C, +25°C, AND +85°C
00554-016
Figure 6. Worst-Case Harmonics vs. AIN
SNR (dB)
70
68
67
66
69
ANALOG INPUT FREQUENCY (MHz)
0 2 4 6 8 101214161820
T = +25°C
T = +85°C
ENCODE = 41MSPS
TEMP = –40°C, +25°C, AND +85°C
0
0554-017
T = –40°C
Figure 7. SNR vs. AIN
ANALOG INPUT FREQUENCY (MHz)
90
80
30
WORST-CASE HARMONIC (dBc)
60
50
40
70
ENCODE = 41MSPS
1 2 4 102040 100
00554-018
Figure 8. Worst-Case Harmonics vs. AIN