AD6674 Datasheet, PDF (55/91 Pages) Analog Devices – 385 MHz BW IF Diversity Receiver

Data Sheet
Figure 113 to Figure 115 show the typical spectrum that can be
expected from the AD6674 in the 28% BW mode for three
different tuning words.
0
A_IN = −1dBFS
SNR = 73.0dBFS
–20
ENOB = 11.3 BITS
SFDR = 93dBFS
BUFFER CONTROL 1 = 1.5×
–40
–60
–80
–100
–120
–140
0
25
50
75
100 125 150 175
FREQUENCY (MHz)
Figure 113. AD6674-750, fCLOCK = 750 MHz, fS = 375 MSPS, fIN = 10.3 MHz,
28% BW Mode, Tuning Word = 0
AD6674
0
A_IN = −1dBFS
SNR = 72.4dBFS
–20
ENOB = 11.2 BITS
SFDR = 96dBFS
BUFFER CONTROL 1 = 1.5×
–40
–60
–80
–100
–120
–140
0
25
50
75
100 125 150 175
FREQUENCY (MHz)
Figure 114. AD6674-750, fCLOCK = 750 MHz, fS = 375 MSPS, fIN = 90.3 MHz,
28% BW Mode, Tuning Word = 19 (fS/4 Tuning)
0
A_IN = −1dBFS
SNR = 72.5dBFS
–20 ENOB = 11.3 BITS
SFDR = 94dBFS
BUFFER CONTROL 1 = 1.5×
–40
–60
–80
–100
–120
–140
0
25
50
75
100 125 150 175
FREQUENCY (MHz)
Figure 115. AD6674-750, fCLOCK = 750 MHz, fS = 375 MSPS, fIN = 140.3 MHz,
28% BW Mode, Tuning Word = 43
Rev. B | Page 55 of 91