Analog Devices AD9776A Manual page 21

1.5
1.0
0.5
0
–0.5
–1.0
–1.5
0 2k 4k
CODE
Figure 36. AD9778A Typical INL
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
0 2k 4k 6k 8k
CODE
Figure 37. AD9778A Typical DNL
100
90
4× 150MSPS
80
70
4× 100MSPS
60
50
0 40 80 120 160 200
f
(MHz)
OUT
Figure 38. AD9778A IMD vs. f
4× Interpolation
6k 8k 10k
10k 12k 14k 16k
4× 200MSPS
240 280 320 360 400
,
OUT
Rev. B | Page 21 of 56
AD9776A/AD9778A/AD9779A
100
90
f
= 160MSPS
DATA
80
70
60
50
0 20 40
f
OUT
Figure 39. AD9778A In-Band SFDR vs. f
2× Interpolation
–60
–70
FIRST ADJACENT CHANNEL
THIRD ADJACENT
CHANNEL
–80
–90
0 25 50 75 100 125
f
OUT
Figure 40. AD9778A ACLR, Single Carrier W-CDMA,
4× Interpolation, f = 122.88 MSPS, Amplitude = −3 dBFS
DATA
REF –25.39dBm *ATTEN 4dB
*AVG
log
10dB
PAVG
10
W1 S2
CENTER 143.88MHz
*RES BW 30kHz VBW 300kHz
RMS RESULTS
FREQ OFFSET REF BW
CARRIER POWER 5.000MHz 3.884MHz
–12.74dBm/ 10.00MHz 3.840MHz
3.84000MHz 15.00MHz 3.840MHz
Figure 41. AD9778A ACLR,
f = 122.88 MSPS, 4× Interpolation, f
DATA
f
= 200MSPS
DATA
f
= 250MSPS
DATA
60 80 100
(MHz)
,
OUT
SECOND ADJACENT
CHANNEL
150 175 200 225 250
(MHz)
SPAN 50MHz
SWEEP 162.2ms (601 pts)
LOWER UPPER
dBc dBm dBc dBm
–76.49 –89.23 –76.89 –89.63
–80.13 –92.87 –80.02 –92.76
–80.90 –93.64 –79.53 –92.27
/4 Modulation
DAC