Datasheet

AD9148 Data Sheet
Rev. B | Page 20 of 72
CENTER 150.00MHz
VBW 300kHz
SPAN 59.58MHz
#RES BW 30kHz
TOTAL CARRIER POWER –13.30dBm/15.3600MHz
REF CARRIER POWER –19.14dBm/3.84000MHz
RCC FILTER: ON FILTER ALPHA 0.22
1 –19.14dBm
FREQ
OFFSET
INTEG BW
LOWER
dBc dBm
UPPER
dBc dBm
2 –19.29dBm
5.000MHz 3.840MHz –72.59 –91.81 –72.99 –92.22
3 –19.24dBm
10.00MHz 3.840MHz –73.58 –92.81 –74.45 –93.67
4 –19.61dBm
15.00MHz 3.840MHz –75.18 –94.40 –75.28 –94.51
SWEEP 193.2ms (601 PTS)
08910-036
Figure 36. Four-Carrier W-CDMA, f
OUT
= 150 MHz, f
DAC
= 737.28 MSPS,
4× Interpolation, −3 dBFS, PLL Off
CENTER 150.00MHz
VBW 300kHz
SPAN 59.58MHz
#RES BW 30kHz
TOTAL CARRIER POWER –13.28dBm/15.3600MHz
REF CARRIER POWER –19.07dBm/3.84000MHz
RCC FILTER: ON FILTER ALPHA 0.22
1 –19.07dBm
FREQ
OFFSET
INTEG BW
LOWER
dBc dBm
UPPER
dBc dBm
2 –19.42dBm
5.000MHz 3.840MHz –64.50 –64.39 –83.56
3 –19.28dBm
10.00MHz 3.840MHz –65.12 –65.20 –84.37
4 –19.45dBm
15.00MHz 3.840MHz –65.40
–83.67
–84.29
–84.57 –65.35 –84.52
SWEEP 193.2ms (601 PTS)
08910-037
Figure 37. Four-Carrier W-CDMA, f
OUT
= 150 MHz, f
DAC
= 737.28 MSPS,
4× Interpolation, −3 dBFS, PLL On
START 1.0MHz
VBW 30kHz
STOP 368.6MHz
#RES BW 30kHz SWEEP 1.685s (601 PTS)
08910-038
Figure 38. Four-Carrier W-CDMA, f
OUT
= 150 MHz, f
DAC
= 737.28 MSPS,
4× Interpolation, −3 dBFS
–110
–108
–106
–104
–102
–100
–98
–96
–94
–92
–90
–88
–86
–84
–82
–80
0 50 100 150 200 250 300
CROSSTALK (dB)
f
OUT
(MHz)
08910-039
Figure 39. Crosstalk (DAC Set 1 to DAC Set 2), 4× Interpolation,
f
DATA
= 150 MSPS, Digital Scale = 0 dBFS, Full-Scale Current = 20 mA