Datasheet
AD9737A/AD9739A Data Sheet
Rev. | Page 22 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.
STOP 1GHz
SWEEP 24.1s (1001pts)
START 50MHz
#RES BW 20kHz
10dB/DIV
–40
–50
–60
–70
–80
–90
–100
–120
–110
09616-153
VBW 2kHz
1
2Δ1
3Δ1
FUNCTION
VALUE
FUNCTION
WIDTHFUNCTION
–22.253dBm
–66.457dB
–55.791dB
6MHz
6MHz
6MHz
BAND POWER
BAND POWER
BAND POWER
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
Y
–22.253dBm
–66.457dB
–55.791dB
f
f
f
1
1
1
1
2
3
X
N
Δ1
Δ1
MODEMKR SCLTRC
200.10MHz
235.60MHz
431.25MHz
Figure 54. Low Band Wideband ACLR
STOP 1GHz
SWEEP 24.1s (1001pts)
START 50MHz
#RES BW 20kHz
10dB/DIV
–40
–50
–60
–70
–80
–90
–100
–110
–120
09616-154
VBW 2kHz
1
2Δ1
3Δ1
FUNCTION
VALUE
FUNCTION
WIDTHFUNCTION
–23.585dBm
–54.206dB
–66.628dB
6MHz
6MHz
6MHz
BAND POWER
BAND POWER
BAND POWER
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
Y
–23.586dBm
–54.209dB
–66.696dB
f
f
f
1
1
1
1
2
3
X
N
Δ1
Δ1
MODEMKR SCLTRC
550.65MHz
62.70MHz
167.20MHz
Figure 55. Mid Band Wideband ACLR
STOP 1GHz
SWEEP 24.1s (1001pts)
START 50MHz
#RES BW 20kHz
10dB/DIV
–40
–50
–60
–70
–80
–90
–100
–110
–120
09616-155
VBW 2kHz
1
2Δ1
5Δ1
4Δ1
3Δ1
FUNCTION
VALUE
FUNCTION
WIDTHFUNCTION
–26.330dBm
–61.574dB
–63.268dB
–62.616dB
–51.728dB
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
–26.330dBm
–61.549dB
–63.183dB
–62.616dB
–51.728dB
f
f
f
f
f
1
1
1
1
1
1
2
3
4
5
X
N
Δ1
Δ1
Δ1
Δ1
MODEMKR SCLTRC
950.60MHz
–448.40MHz
–582.35MHz
–80.75MHz
–338.20MHz
Figure 56. High Band Wideband ACLR
09616-156
SPAN 42MHz
SWEEP 1.159s
CENTER 200MHz
#RES BW 30kHz
UPPER
FILTER
OFF
OFF
OFF
OFF
dBc
–10.96
–0.572
–0.250
–0.186
dBc
–55.24
–70.28
–69.23
–69.11
dBm
–34.25
–23.86
–23.54
–23.47
LOWER
dBm
–78.53
–93.56
–92.52
–92.40
INTEG BW
750kHz
5.25MHz
6MHz
6MHz
OFFSET FREQ
3.375MHz
6.375MHz
12.00MHz
18.00MHz
CARRIER POWER –23.288dBm/6MHz ACP-IBW
10dB/DIV
–40
–50
–60
–70
–80
–90
–100
–110
–120
VBW 3kHz
–69.1dBc –69.2dBc –70.3dBc –23.3dBc –0.6dBc –0.2dBc–0.3dBc
Figure 57. Low Band Narrow-Band ACLR (Worse Side)
09616-157
SPAN 42MHz
SWEEP 1.159s
CENTER 592MHz
#RES BW 30kHz
UPPER
FILTER
OFF
OFF
OFF
OFF
dBc
–56.23
–66.75
–66.45
–66.78
dBc
–10.79
–0.089
–0.289
–0.145
dBm
–79.91
–90.43
–90.12
–90.46
LOWER
dBm
–34.47
–23.76
–23.39
–23.53
INTEG BW
750kHz
5.25kHz
6MHz
6MHz
OFFSET FREQ
3.375MHz
6.375MHz
12.00MHz
18.00MHz
CARRIER POWER –23.676dBm/6MHz ACP-IBW
10dB/DIV
–40
–50
–60
–70
–80
–90
–100
–110
–120
VBW 3kHz
0.1dBc
0.3dBc
–66.8dBc
–66.4dBc
–0.1dBc
–23.7dBc
–66.8dBc
Figure 58. Mid Band Narrow-Band ACLR (Worse Side)
09616-158
SPAN 54MHz
SWEEP 1.49s
CENTER 950MHz
#RES BW 30kHz
UPPER
FILTER
OFF
OFF
OFF
OFF
OFF
dBc
–10.99
–0.366
–0.073
–0.053
–0.225
dBc
–60.71
–62.67
–62.21
–62.68
–63.49
dBm
–37.38
–26.75
–26.31
–26.33
–26.16
LOWER
dBm
–87.10
–89.06
–88.60
–89.07
–89.88
INTEG BW
750kHz
5.25kHz
6MHz
6MHz
6MHz
OFFSET FREQ
3.375MHz
6.375MHz
12.00MHz
18.00MHz
24.00MHz
CARRIER POWER –26.388dBm/6MHz ACP-IBW
10dB/DIV
–40
–50
–60
–70
–80
–90
–100
–110
–120
VBW 3kHz
–63.5dBc –62.7dBc
0.1dBc0.1dBc 0.2dBc
–62.2dBc –62.7dBc
–26.4dBm
–0.4dBc
Figure 59. High Band Narrow-Band ACLR
C