Datasheet

Data Sheet AD9737A/AD9739A
Rev. | Page 35 of 64
EIGHT-CARRIER DOCSIS PERFORMANCE (NORMAL MODE)
I
OUTFS
= 20 mA, f
DAC
= 2.4576 GSPS, nominal supplies, T
A
= 25°C, unless otherwise noted.
09616-189
10dB/DIV
VBW 2kHz
STOP 1GHz
SWEEP 24.1s (1001pts)
START 50MHz
#RES BW 20kHz
FUNCTION
VALUE
FUNCTION
WIDTHFUNCTION
–22.044dBm
–71.492dB
–70.555dB
–68.566dB
–65.237dB
6MHz
6MHz
6MHz
6MHz
6MHz
BAND POWER
BAND POWER
BAND POWER
BAND POWER
BAND POWER
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
Y
–22.043dBm
–71.545dB
–70.510dB
–68.566dB
–65.219dB
f
f
f
f
f
1
1
1
1
1
1
2
3
4
5
X
N
Δ1
Δ1
Δ1
Δ1
MODEMKR SCLTRC
200MHz
216.60MHz
400MHz
621.30MHz
413.25MHz
–40
–50
–60
–70
–80
–90
–100
–110
–120
3Δ1
5Δ1
2Δ1
4Δ1
1
Figure 128. Low Band Wideband ACLR
09616-190
10dB/DIV
VBW 2kHz
STOP 1GHz
SWEEP 24.1s (1001pts)
START 50MHz
#RES BW 20kHz
FUNCTION
VALUE
FUNCTION
WIDTHFUNCTION
–23.977dBm
–69.185dB
–68.551dB
–69.938dB
–72.083dB
–65.009dB
6MHz
6MHz
6MHz
6MHz
6MHz
6MHz
BAND POWER
BAND POWER
BAND POWER
BAND POWER
BAND POWER
BAND POWER
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
Y
–23.977dBm
–69.185dB
–68.551dB
–69.923dB
–72.145dB
–65.009dB
f
f
f
f
f
f
1
1
1
1
1
1
1
2
3
4
5
6
X
N
Δ1
Δ1
Δ1
Δ1
Δ1
MODEMKR SCLTRC
667.80MHz
–171.30MHz
–98.15MHz
–614.00MHz
–567.45MHz
–55.40MHz
–38
–48
–58
–68
–78
–88
–98
–108
–118
3Δ1
2Δ1
4Δ1
1
6Δ1
5Δ1
Figure 129. Mid Band Wideband ACLR
09616-191
10dB/DIV
VBW 2kHz
STOP 1GHz
SWEEP 24.1s (1001pts)
START 50MHz
#RES BW 20kHz
FUNCTION
VALUE
FUNCTION
WIDTHFUNCTION
–25.435dBm
–61.947dB
–67.532dB
–69.602dB
–65.237dB
–64.615dB
6MHz
6MHz
6MHz
6MHz
6MHz
6MHz
BAND POWER
BAND POWER
BAND POWER
BAND POWER
BAND POWER
BAND POWER
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
Y
–25.435dBm
–61.947dB
–67.517dB
–69.583dB
–65.237dB
–64.615dB
f
f
f
f
f
f
1
1
1
1
1
1
1
2
3
4
5
6
X
N
Δ1
Δ1
Δ1
Δ1
Δ1
MODEMKR SCLTRC
990.80MHz
–481.00MHz
–633.95MHz
–734.65MHz
–128.55MHz
–378.40MHz
–38
–48
–58
–68
–78
–88
–98
–108
–118
3Δ1
2Δ1
4Δ1
1
6Δ1
5Δ1
Figure 130. High Band Wideband ACLR
09616-192
SPAN 54MHz
SWEEP 1.49s
VBW 3kHz
CENTER 222MHz
#RES BW 30kHz
UPPER
FILTER
OFF
OFF
OFF
OFF
OFF
dBc
–59.41
–69.96
–69.91
–69.74
–70.08
dBm
–81.28
–91.83
–91.78
–91.62
–91.95
LOWER
dBc
–10.98
–0.334
0.087
–0.034
0.031
dBm
–32.85
–22.21
–21.79
–21.91
–21.84
INTEG BW
750.0kHz
5.250MHz
6.000MHz
6.000MHz
6.000MHz
OFFSET FREQ
3.375MHz
6.375MHz
12.00MHz
18.00MHz
24.00MHz
CARRIER POWER –21.874dBm/6MHz ACP-IBW
10dB/DIV
0.0dBc
0.0dBc
0.1dBc –0.3dBc
–21.9dBm
–70.0Bc –69.9dBc –70.1dBc–69.7dBc
–37
–47
–57
–67
–77
–87
–97
–107
–117
Figure 131. Low Band Narrow-Band ACLR (Worse Side)
09616-193
SPAN 54MHz
SWEEP 1.49s
VBW 3kHz
CENTER 580MHz
#RES BW 30kHz
UPPER
FILTER
OFF
OFF
OFF
OFF
OFF
dBc
–11.25
–0.459
–0.137
–0.181
–0.221
dBm
–33.80
–23.01
–22.69
–22.74
–22.78
LOWER
dBc
–60.21
–71.35
–71.20
–71.51
–71.60
dBm
–82.77
–93.90
–93.75
–94.06
–94.16
INTEG BW
750.0kHz
5.250MHz
6.000MHz
6.000MHz
6.000MHz
OFFSET FREQ
3.375MHz
6.375MHz
12.00MHz
18.00MHz
24.00MHz
CARRIER POWER –22.556dBm/6MHz ACP-IBW
10dB/DIV
–71.6dBc –71.5dBc –71.2dBc –71.3dBc –22.6dBm –0.5Bc
–0.1dBc –0.2dBc–0.2dBc
–37
–47
–57
–67
–77
–87
–97
–107
–117
Figure 132. Mid Band Narrow-Band ACLR (Worse Side)
09616-194
SPAN 54MHz
SWEEP 1.49s
VBW 3kHz
CENTER 950MHz
#RES BW 30kHz
UPPER
FILTER
OFF
OFF
OFF
OFF
OFF
dBc
–10.93
–0.487
–0.205
–0.047
–0.016
dBm
–36.27
–25.83
–25.55
–25.39
–25.33
LOWER
dBc
–60.39
–67.44
–67.29
–67.65
–67.65
dBm
–85.73
–92.78
–92.63
–93.00
–93.00
INTEG BW
750.0kHz
5.250MHz
6.000MHz
6.000MHz
6.000MHz
OFFSET FREQ
3.375MHz
6.375MHz
12.00MHz
18.00MHz
24.00MHz
CARRIER POWER –25.344dBm/6MHz ACP-IBW
10dB/DIV
–67.7dBc –67.7dBc –67.3dBc –67.4dBc
–25.3dBm –0.5Bc –0.2dBc 0.0dBc0.0dBc
–37
–47
–57
–67
–77
–87
–97
–107
–117
Figure 133. High Band Narrow-Band ACLR
C