AD6657(Rev0) View Datasheet(PDF) - Analog Devices
Part Name
Description
Manufacturer
AD6657 Datasheet PDF : 32 Pages
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0
fS = 185MSPS
fIN = 230.3MHz @ –1.6dBFS
–20
NSR 33% BW MODE, TW = 17
SNR = 69.3dB (71dBFS) (IN-BAND)
SFDR = 85.4dBc (IN-BAND)
–40
SECOND
–60
HARMONIC
THIRD
–80
HARMONIC
–100
–120
–140
0
10 20 30 40 50 60 70 80 90
FREQUENCY (MHz)
Figure 11. Single-Tone FFT with fIN = 230.3 MHz, NSR Enabled
in 33% BW Mode with Tuning Word = 17
100
90
80
70
60
50
SNR (dBc)
SFDR (dBc)
40
SNR (dBFS)
SFDR (dBFS)
30
20
10
0
INPUT AMPLITUDE (dBFS)
Figure 12. Single-Tone SNR/SFDR vs. Input Amplitude (AIN)
with fIN = 70.3 MHz
95
90
85
SFDR (dBc)
80
75
70
SNR (dBFS)
65
60
60
110
160
210
260
300
INPUT FREQUENCY (MHz)
Figure 13. Single-Tone SNR/SFDR vs. Input Frequency (fIN)
with 1.75 V p-p Full Scale
AD6657
95
90
85
SFDR (dBc)
80
75
70
SNR (dBFS)
65
60
60
110
160
210
260
300
INPUT FREQUENCY (MHz)
Figure 14. Single-Tone SNR/SFDR vs. Input Frequency (fIN)
with 2.0 V p-p Full Scale
95
90
SFDR (dBc)
85
80
75
70
SNR (dBFS)
65
60
55
50
30 50 70 90 110 130 150 170 190 210 230 250
SAMPLE RATE (MSPS)
Figure 15. Single-Tone SNR/SFDR vs. Sample Rate (fS)
with fIN = 70.1 MHz
0
fS = 185MSPS
fIN1 = 169.1MHz @ –7dBFS
–20
fIN2 = 172.1MHz @ –7dBFS
SFDR = 81.8dBc
–40
–60
–80
–100
–120
0
10 20 30 40 50 60 70 80 90
FREQUENCY (MHz)
Figure 16. Two-Tone FFT with fIN1 = 169.1 MHz and fIN2 = 172.1 MHz
Rev. 0 | Page 13 of 32
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