AD6649 Analog Devices, AD6649 Datasheet - Page 14

• Manufacturer Part Number: AD6649
• Description: IF Diversity Receiver
• Manufacturer: Analog Devices

AD6649
Figure 11. AD6649 Single-Tone SNR/SFDR vs. Input Amplitude (A
Figure 13. AD6649 Two-Tone SFDR/IMD3 vs. Input Amplitude (A
Figure 12. AD6649 Single-Tone SNR/SFDR vs. Input Frequency (f
–100
–120
120
100
100
–20
–40
–60
–80
80
60
40
20
95
90
85
80
75
70
65
–90.0
0
0
50
with f
SNR (dBFS)
SFDR (dBFS)
SFDR (dBc)
100
–78.5
IN1
IMD3 (dBFS)
SFDR (dBFS)
SNR (dBc)
IMD3 (dBc)
= 89.12 MHz, f
150
SFDR (dBc)
–67.0
SNR (dBFS)
SFDR (dBc)
INPUT AMPLITUDE (dBFS)
INPUT FREQUENCY (MHz)
INPUT AMPLITUDE (dBFS)
with f
200
–55.5
IN
IN2
= 90.1 MHz
= 92.12 MHz, f
250
–44.0
300
–32.5
S
350
= 250 MSPS
–21.0
400
450
–9.5
IN
IN
IN
)
)
)
Rev. A | Page 14 of 40
Figure 15. AD6649 Two-Tone FFT with f
Figure 14. AD6649 Two-Tone SFDR/IMD3 vs. Input Amplitude (A
–100
–120
–20
–40
–60
–80
–100
–120
–140
–100
–120
–140
–90.0
–20
–40
–60
–80
–20
–40
–60
–80
0
Figure 16. AD6649 Two-Tone FFT with f
with f
0
0
0
0
250MSPS
184.12MHz @ –7.0dBFS
187.12MHz @ –7.0dBFS
SFDR = 85dBc (93.5dBFS)
IN1
10
10
–78.5
250MSPS
89.12MHz @ –7.0dBFS
92.12MHz @ –7.0dBFS
SFDR = 88dBc (96.5dBFS)
SFDR (dBFS)
IMD3 (dBFS)
IMD3 (dBc)
= 184.12 MHz, f
20
20
f
IN2
SFDR (dBc)
–67.0
30
30
= 187.12 MHz, f
INPUT AMPLITUDE (dBFS)
40
40
f
S
FREQUENCY (MHz)
FREQUENCY (MHz)
–55.5
= 250 MSPS
IN2
50
50
= 187.12 MHz, f
60
60
S
–44.0
IN1
= 250 MSPS
70
70
= 89.12 MHz, f
80
80
IN1
–32.5
= 184.12 MHz,
S
90
90
= 250 MSPS
Data Sheet
100 110 120
100 110 120
–21.0
IN2
= 92.12 MHz,
–9.5
IN
)