AD9639 Analog Devices, Inc., AD9639 Datasheet - Page 12

• Manufacturer Part Number: AD9639
• Description: Quad, 12-bit, 170 Msps/210 Msps Serial Output 1.8 V Adc
• Manufacturer: Analog Devices, Inc.

AD9639
Figure 10. SNR/SFDR vs. Analog Input Level, f
Figure 11. SNR/SFDR vs. Analog Input Level, f
Figure 12. Two-Tone 32k FFT with f
–100
–120
100
100
–20
–40
–60
–80
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
–90
–90
0
0
–80
–80
10
SFDR (dBFS)
SNR (dBFS)
–70
–70
20
SFDR (dB)
SFDR (dB)
ANALOG INPUT LEVEL (dBFS)
ANALOG INPUT LEVEL (dBFS)
SNR (dBFS)
SFDR (dBFS)
–60
–60
f
SAMPLE
30
FREQUENCY (MHz)
–50
–50
= 170 MSPS
40
IN1
= 140.2 MHz and f
–40
–40
AIN1 AND AIN2 = –7.0dBFS
SFDR = 77.26dBc
IMD2 = –86.55dBc
IMD3 = –77.26dBc
50
SNR (dB)
IN
IN
SNR (dB)
= 84.3 MHz, f
= 84.3 MHz, f
–30
–30
60
–20
–20
70
IN2
SAMPLE
SAMPLE
–10
–10
= 141.3 MHz,
80
= 170 MSPS
= 210 MSPS
0
0
Rev. 0 | Page 12 of 36
Figure 13. Two-Tone 32k FFT with f
Figure 14. Two-Tone 32k FFT with f
Figure 15. SNR/SFDR Amplitude vs. AIN Frequency, f
–100
–120
–100
–120
–20
–40
–60
–80
–20
–40
–60
–80
95
90
85
80
75
70
65
60
55
50
45
0
0
0
0
0
AIN1 AND AIN2 = –7.0dBFS
SFDR = 75.44dBc
IMD2 = –78.34dBc
IMD3 = –75.44dBc
50
100
20
20
150
SNR (dB)
AIN FREQUENCY (MHz)
f
f
SAMPLE
SAMPLE
FREQUENCY (MHz)
FREQUENCY (MHz)
200
40
40
= 210 MSPS
= 210 MSPS
IN1
IN1
250
= 140.2 MHz and f
= 170.2 MHz and f
SFDR (dB)
AIN1 AND AIN2 = –7.0dBFS
SFDR = 76.88dBc
IMD2 = –78.75dBc
IMD3 = –78.68dBc
60
60
300
350
80
80
400
SAMPLE
IN2
IN2
450
= 141.3 MHz,
= 171.3 MHz,
= 170 MSPS
100
100
500