Datasheet

AD9627
Rev. B | Page 24 of 76
0
–20
–40
–60
–80
–100
–120
–90 –78 –66 –54 –42 –30 –18 –6
SFDR/IMD3 (dBc AND dBFS)
INPUT AMPLITUDE (dBFS)
SFDR (dBc)
IMD3 (dBc)
SFDR (dBFS)
IMD3 (dBFS)
06571-034
Figure 34. AD9627-150 Two-Tone SFDR/IMD3 vs. Input Amplitude (A
IN
)
with f
IN1
= 169.1 MHz, f
IN2
= 172.1 MHz, f
S
= 150 MSPS
0
–20
–40
–60
–80
–100
–120
0 15.36 30.72 46.08 61.44
AMPLITUDE (dBFS)
FREQUENCY (MHz)
06571-035
Figure 35. AD9627-125, Two 64k WCDMA Carriers
with f
IN
= 170 MHz, f
S
= 122.88 MSPS
0
–20
–40
–60
–80
–100
–120
070605040302010
AMPLITUDE (dBFS)
FREQUENCY (MHz)
150MSPS
29.1MHz @ –7dBFS
32.1MHz @ –7dBFS
SFDR = 86.1dBc (93.1dBFS)
06571-036
Figure 36. AD9627-150 Two-Tone FFT with f
IN1
= 29.1 MHz and f
IN2
= 32.1 MHz
0
–20
–40
–60
–80
–100
–120
070605040302010
AMPLITUDE (dBFS)
FREQUENCY (MHz)
150MSPS
169.1MHz @ –7dBFS
172.1MHz @ –7dBFS
SFDR = 83.8dBc (90.8dBFS)
06571-037
Figure 37. AD9627-150 Two-Tone FFT with f
IN1
= 169.1 MHz and
f
IN2
= 172.1 MHz
0
–20
–40
–60
–80
–100
–120
070605040302010
AMPLITUDE (dBFS)
FREQUENCY (MHz)
06571-038
NPR = 61.5dBc
NOTCH @ 18.5MHz
NOTCH WIDTH = 3MHz
Figure 38. AD9627-150 Noise Power Ratio (NPR)
100
90
80
70
60
50
0150125100755025
SNR/SFDR (dBc)
SAMPLE RATE (MSPS)
SFDR - SIDE B
SFDR - SIDE A
SNR - SIDE B
SNR - SIDE A
06571-039
Figure 39. AD9627-150 Single-Tone SNR/SFDR vs. Sample Rate (f
S
)
with f
IN
= 2.3 MHz