Datasheet

AD9786
Rev. B | Page 18 of 56
03152-027
ANALOG OUTPUT FREQUENCY (MHz)
1600 20 40 60 80 100 120 140
NOISE SPECTRAL DENSITY (dBm/Hz)
–150
–158
–156
–154
–152
–164
–162
–160
–168
–166
–170
A
IN
= 0dBFS
A
IN
= –3dBFS
A
IN
= –6dBFS
Figure 27. Noise Spectral Density vs. Analog Input Frequency,
f
DATA
= 156 MSPS, 2x Interpolation
03152-028
F
OUT
(MHz)
1500 25 50 75 100 125
ACLR (dBc)
–90
–60
–65
–70
–75
–80
–85
–6dBFS
0dBFS
–3dBFS
Figure 28. ACLR for First Adjacent Band vs. Frequency,
f
DATA
= 61.44 MSPS, 4× Interpolation
03152-029
F
OUT
(MHz)
2000 20 40 60 80 100 120 140 160 180
ACLR (dBc)
–90
–60
–65
–70
–75
–80
–85
–3dBFS
0dBFS
–6dBFS
Figure 29. ACLR for First Adjacent Band vs. Frequency,
f
DATA
= 76.8 MSPS, 4× Interpolation
Ref Lv1
10 dBm
Marker 1 [T1]
–87.73 dBm
9.71442886 MHz
RBW
VBW
SWT
10 kHz
10 kHz
5 s
RF Att
Unit
20 dB
dBm
A
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–
100
–110
START 100 kHz STOP 200 MHz19.9 MHz/
1MA
1
1AVG
Figure 30. Two Tones Around 23 MHz, f
DATA
= 200 MSPS,
2× Interpolation, Low-Pass Digital Filter Mode
03152-031
Ref Lv1
10 dBm
Marker 1 [T1]
–87.95 dBm
11.71743487 MHz
RBW
VBW
SWT
10 kHz
10 kHz
5 s
RF Att
Unit
20 dB
dBm
A
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
START 100 kHz STOP 200 MHz19.9 MHz/
1MA
1
1AVG
Figure 31. Two Tones Around 177 MHz, f
DATA
= 200 MSPS,
2× Interpolation, High-Pass Digital Filter Mode
03152-032
SPAN 43.84MHz
SWEEP 142.2ms (601 pts)VBW 300kHz
CENTER 51.44MHz
*RES BW 30kHz
RMS RESULTS
CARRIER POWER
–17.41dBm/
3.84MHz
FREQ OFFSET
5.000MHz
10.000MHz
15.000MHz
20.000MHz
REF BW
3.840MHz
3.840MHz
3.840MHz
3.840MHz
dBc
0.15
–74.24
–75.73
–75.67
dBm
–17.26
–91.65
–93.14
–93.08
LOWER
dBc
–74.63
–75.67
–76.38
–75.75
dBm
–92.05
–93.08
–93.79
–93.17
UPPER
REF –29.82dBm
*AVG
Log
10dB/
PAVG
22
W1 S2
*ATTEN 6dB
AVERAGE
103
Figure 32. ACLR for Two WCDMA Carriers @ 51.44 MHz,
f
DATA
= 61.44 MSPS, 4× Interpolation