Datasheet

AD9737A/AD9739A Data Sheet
Rev. | Page 24 of 64
32-CARRIER DOCSIS PERFORMANCE (NORMAL MODE)
I
OUTFS
= 20 mA, f
DAC
= 2.4576 GSPS, nominal supplies, T
A
= 25°C, unless otherwise noted.
09616-165
10dB/DIV
VBW 2kHz
STOP 1GHz
SWEEP 24.1s (1001pts)
START 50MHz
#RES BW 20kHz
FUNCTION
VALUE
FUNCTION
WIDTHFUNCTION
–29.853dBm
–61.410dB
–61.639dB
–48.122dB
6MHz
6MHz
6MHz
6MHz
BAND POWER
BAND POWER
BAND POWER
BAND POWER
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
Y
–29.852dBm
–61.581dB
–61.313dB
–48.122dB
f
f
f
f
1
1
1
1
1
2
3
4
X
N
Δ1
Δ1
Δ1
MODEMKR SCLTRC
256.15MHz
94.05MHz
243.20MHz
356.25MHz
–50
–60
–70
–80
–90
–100
–110
–120
–130
1
3Δ1
2Δ1
4Δ1
Figure 66. Low Band Wideband ACLR
09616-166
10dB/DIV
VBW 2kHz
STOP 1GHz
SWEEP 24.1s (1001pts)
START 50MHz
#RES BW 20kHz
FUNCTION
VALUE
FUNCTION
WIDTHFUNCTION
–29.461dBm
–61.621dB
–61.831dB
6MHz
6MHz
6MHz
BAND POWER
BAND POWER
BAND POWER
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
Y
–29.461dbm
–61.621dB
–61.831dB
f
f
f
1
1
1
1
2
3
X
N
Δ1
Δ1
MODEMKR SCLTRC
550MHz
–462.65MHz
314.45MHz
–50
–60
–70
–80
–90
–100
–110
–120
–130
2Δ1
1
3Δ1
Figure 67. Mid Band Wideband ACLR
09616-167
10dB/DIV
VBW 2kHz
STOP 1GHz
SWEEP 24.1s (1001pts)
START 50MHz
#RES BW 20kHz
FUNCTION
VALUE
FUNCTION
WIDTHFUNCTION
–32.396dBm
–57.463dB
–58.079dB
–45.705dB
6MHz
6MHz
6MHz
6MHz
BAND POWER
BAND POWER
BAND POWER
BAND POWER
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
(Δ)
Y
–32.396dBm
–57.463dB
–58.079dB
–45.705dB
f
f
f
f
1
1
1
1
1
2
3
4
X
N
Δ1
Δ1
Δ1
MODEMKR SCLTRC
799.55MHz
–138.70MHz
–601.35MHz
–187.15MHz
–50
–60
–70
–80
–90
–100
–110
–120
–130
2Δ1
1
4Δ1
3Δ1
Figure 68. High Band Wideband ACLR
09616-168
SPAN 54MHz
SWEEP 1.49s
VBW 3kHz
CENTER 256MHz
#RES BW 30kHz
UPPER
FILTER
OFF
OFF
OFF
OFF
OFF
dBc
–60.27
–65.64
–64.12
–64.24
–64.12
dBm
–88.50
–93.87
–92.35
–92.47
–92.35
LOWER
dBc
–10.80
–0.336
0.060
0.081
0.080
dBm
–39.03
–28.56
–28.17
–28.15
–28.15
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 –28.229dBm/6MHz ACP-IBW
10dB/DIV
0.1dBc
0.1dBc
0.1dBc –0.3dBc
–28.2dBm –65.6dBc –64.1dBc –64.1dBc–64.2dBc
–50
–60
–70
–80
–90
–100
–110
–120
–130
Figure 69. Low Band Narrow-Band ACLR
09616-169
SPAN 54MHz
SWEEP 1.49s
VBW 3kHz
CENTER 550MHz
#RES BW 30kHz
UPPER
FILTER
OFF
OFF
OFF
OFF
OFF
dBc
–10.88
–0.576
–0.222
–0.423
–0.133
dBm
–40.39
–30.09
–29.73
–29.93
–29.63
LOWER
dBc
–58.70
–62.34
–61.36
–61.70
–61.84
dBm
–88.21
–91.85
–90.87
–91.21
–91.36
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 –29.512dBm/6MHz ACP-IBW
10dB/DIV
–61.8dBc –61.7dBc –61.4dBc
–62.3dBc –29.5dBm ––0.6dBc –0.2dBc –0.1dBc–0.4dBc
–50
–60
–70
–80
–90
–100
–110
–120
–130
Figure 70. Mid Band Narrow-Band ACLR (Worse Side)
09616-170
SPAN 54MHz
SWEEP 1.49s
VBW 3kHz
CENTER 800MHz
#RES BW 30kHz
UPPER
FILTER
OFF
OFF
OFF
OFF
OFF
dBc
–10.73
–0.201
0.300
0.296
0.230
dBm
–42.89
–32.35
–31.85
–31.86
–31.92
LOWER
dBc
–59.39
–61.40
–59.86
–59.61
–60.04
dBm
–91.54
–93.55
–92.01
–91.77
–92.20
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 –32.154dBm/6MHz ACP-IBW
10dB/DIV
–60.0dBc –59.6dBc –59.9dBc –61.4dBc
–32.2dBm ––0.2dBc 0.3dBc 0.2dBc0.3dBc
–50
–60
–70
–80
–90
–100
–110
–120
–130
Figure 71. High Band Narrow-Band ACLR
C