Datasheet
AD9737A/AD9739A Data Sheet
Rev. | Page 34 of 64
FOUR-CARRIER DOCSIS PERFORMANCE (NORMAL MODE)
I
OUTFS
= 20 mA, f
DAC
= 2.4576 GSPS, nominal supplies, T
A
= 25°C, unless otherwise noted.
09616-183
10dB/DIV
VBW 2kHz
STOP 1GHz
SWEEP 24.1s (1001pts)
START 50MHz
#RES BW 20kHz
FUNCTION
VALUE
FUNCTION
WIDTHFUNCTION
–18.594dBm
–73.170dB
–73.621dB
–71.289dB
–68.946dB
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
–18.593dBm
–73.198dB
–73.654dB
–71.306dB
–68.955dB
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
4Δ1
1
3Δ1
2Δ1
5Δ1
Figure 122. Low Band Wideband ACLR
09616-184
10dB/DIV
VBW 2kHz
STOP 1GHz
SWEEP 24.1s (1001pts)
START 50MHz
#RES BW 20kHz
FUNCTION
VALUE
FUNCTION
WIDTHFUNCTION
–18.760dBm
–69.536dB
–71.601dB
–72.833dB
–75.320dB
–71.997dB
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
–18.760dBm
–69.536dB
–71.601dB
–72.824dB
–75.786dB
–71.997dB
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
–192.20MHz
–98.15MHz
–614.00MHz
–567.45MHz
–55.40MHz
–38
–48
–58
–68
–78
–88
–98
–108
–118
2Δ1
4Δ1
5Δ1
6Δ1
3Δ1
1
Figure 123. Mid Band Wideband ACLR
09616-185
10dB/DIV
VBW 2kHz
STOP 1GHz
SWEEP 24.1s (1001pts)
START 50MHz
#RES BW 20kHz
FUNCTION
VALUE
FUNCTION
WIDTHFUNCTION
–21.029dBm
–60.683dB
–69.390dB
–71.847dB
–66.954dB
–68.889dB
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
–20.040dBm
–60.683dB
–69.390dB
–71.954dB
–66.954dB
–68.889dB
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
987.95MHz
–490.50MHz
–624.45MHz
–738.45MHz
–130.45MHz
–374.60MHz
–38
–48
–58
–68
–78
–88
–98
–108
–118
2Δ1
3Δ1
1
5Δ1
6Δ1
4Δ1
Figure 124. High Band Wideband ACLR
09616-186
SPAN 54MHz
SWEEP 1.49s
VBW 3kHz
CENTER 210MHz
#RES BW 30kHz
UPPER
FILTER
OFF
OFF
OFF
OFF
OFF
dBc
–58.78
–73.56
–75.42
–78.08
–79.06
dBm
–76.34
–91.12
–92.98
–95.64
–96.62
LOWER
dBc
–11.15
–0.454
–0.065
–0.091
–53.44
dBm
–28.70
–18.01
–17.62
–17.65
–70.99
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 –17.556dBm/6MHz ACP-IBW
10dB/DIV
–53.4dBc –0.1dBc –0.1dBc –0.5dBc –17.6dBm –73.6dBc –75.4dBc –79.1dBc–78.1dBc
–37
–47
–57
–67
–77
–87
–97
–107
–117
Figure 125. Low Band Narrow-Band ACLR (Worse Side)
09616-187
SPAN 54MHz
SWEEP 1.49s
VBW 3kHz
CENTER 650MHz
#RES BW 30kHz
UPPER
FILTER
OFF
OFF
OFF
OFF
OFF
dBc
–11.18
–0.294
–0.075
–0.145
–50.21
dBm
–30.68
–19.80
–19.58
–19.65
–69.71
LOWER
dBc
–61.84
–72.95
–74.99
–76.38
–76.59
dBm
–81.35
–92.45
–94.49
–95.89
–96.10
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 –19.503dBm/6MHz ACP-IBW
10dB/DIV
–76.4dBc –75.0dBc
–72.9dBc –19.5dBm –0.3dBc –0.1dBc –50.2dBc–0.1dBc
–37
–47
–57
–67
–77
–87
–97
–107
–117
–76.6dBc
Figure 126. Mid Band Narrow-Band ACLR (Worse Side)
09616-188
SPAN 54MHz
SWEEP 1.49s
VBW 3kHz
CENTER 970MHz
#RES BW 30kHz
UPPER
FILTER
OFF
OFF
OFF
OFF
OFF
dBc
–10.77
–0.522
–0.140
–0.511
–52.31
dBm
–31.44
–21.19
–20.81
–21.18
–72.98
LOWER
dBc
–60.65
–68.68
–70.67
–72.96
–74.22
dBm
–81.32
–89.34
–91.33
–93.63
–94.89
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 –20.666dBm/6MHz ACP-IBW
10dB/DIV
–73.0dBc –70.7dBc
–68.7Bc –20.7dBm –0.5dBc –0.1dBc –52.3dBc–0.5dBc
–37
–47
–57
–67
–77
–87
–97
–107
–117
–74.2dBc
Figure 127. High Band Narrow-Band ACLR
C