AD9049 Analog Devices, Inc., AD9049 Datasheet - Page 7

• Manufacturer Part Number: AD9049
• Description: 9-bit, 30 Msps Adc
• Manufacturer: Analog Devices, Inc.

REV. A
–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
Figure 12. FFT Plot 30 MSPS, 10.3 MHz
Figure 10. FFT Plot 30 MSPS, 2.3 MHz
Figure 11. FFT Plot 30 MSPS, 4.3 MHz
0
0
0
ENCODE = 30 MSPS
ANALOG IN = 10.3 MHz
SNR = 52.7 dB
SNR (W/O HAR) = 53.1 dB
2ND HARMONIC = 66.4 dB
3RD HARMONIC = 70.5 dB
2.5
2.5
2.5
5
5
5
FREQUENCY – MHz
FREQUENCY – MHz
FREQUENCY – MHz
7.5
7.5
7.5
ENCODE = 30 MSPS
ANALOG IN = 2.3 MHz
SNR = 53.0 dB
SNR (W/O HAR) = 53.3 dB
2ND HARMONIC = 69.3 dB
3RD HARMONIC = 72.9 dB
ENCODE = 30 MSPS
ANALOG IN = 4.3 MHz
SNR = 53.0 dB
SNR (W/O HAR) = 53.3 dB
2ND HARMONIC = 69.0 dB
3RD HARMONIC = 72.6 dB
10
10
10
12.5
12.5
12.5
15
15
15
–7–
–0.5
–1.0
–1.5
–2.0
–2.5
–3.0
–3.5
–4.0
–4.5
55.0
54.5
54.0
53.5
53.0
52.5
52.0
51.5
51.0
15.0
14.0
13.0
12.0
11.0
10.0
1.0
0.5
0.0
9.0
8.0
7.0
6.0
5.0
– 40
25
Figure 14. ADC Gain vs. A
Figure 15. t
1
Figure 13. SNR vs. Clock Pulse Width
[1] - 5V DATA RISING EDGE
[2] - 5V DATA FALLING EDGE
[3] - 3V DATA RISING EDGE
[4] - 3V DATA FALLING EDGE
30
–20
35
ANALOG INPUT FREQUENCY – MHz
PD
40
0
10
vs. Temperature 3 V/5 V
TEMPERATURE – C
DUTY CYCLE – %
45
20
50
40
55
ENCODE = 30 MSPS
IN
ENCODE = 30 MSPS
A
100
IN
Frequency
60
= 2.3 MHz
60
AD9049
65
80
70
[3]
[1]
[4]
[2]
1000
75
100