AD9739A Analog Devices, AD9739A Datasheet - Page 25

• Manufacturer Part Number: AD9739A
• Description: 14-Bit, 2.5 GSPS, RF D/A Converter
• Manufacturer: Analog Devices

Specifications of AD9739A

• Resolution (bits): 14bit
• Dac Update Rate: 2.5GSPS
• Dac Settling Time: n/a
• Max Pos Supply (v): n/a
• Single-supply: No
• Dac Type: Current Out
• Dac Input Format: LVDS,Par

Data Sheet
64- AND 128-CARRIER DOCSIS PERFORMANCE (NORMAL MODE)
I
OUTFS
–100
–110
–120
–130
–100
–110
–120
–130
–100
–110
–120
–130
–50
–60
–70
–80
–90
–50
–60
–70
–80
–90
–50
–60
–70
–80
–90
= 20 mA, f
START 50MHz
#RES BW 20kHz
START 50MHz
#RES BW 20kHz
START 50MHz
#RES BW 20kHz
MKR
1
2
3
MKR
1
2
3
MKR
1
2
3
1
MODE
N
Δ1
Δ1
MODE
N
Δ1
N
MODE
N
Δ1
N
Figure 74. 128-Carrier Low Band Wideband ACLR
TRC
TRC
TRC
1
1
1
1
1
1
1
1
1
Figure 73. High Band Wideband ACLR
DAC
Figure 72. Low Band Wideband ACLR
SCL
SCL
SCL
f
f
f
f
f
f
f
f
f
(Δ)
(Δ)
(Δ)
(Δ)
= 2.4576 GSPS, nominal supplies, T
X
448.05MHz
165.30MHz
372.40MHz
X
599.10MHz
–292.60MHz
978.15MHz
X
69.95MHz
855.00MHz
831.85MHz
2Δ1
VBW 2kHz
(Δ)
(Δ)
VBW 2kHz
(Δ)
VBW 2kHz
(Δ)
1
Y
–33.679dBm
–46.452dB
–56.577dB
Y
–34.413dBm
–56.033dB
–36.289dBm
Y
–34.909dBm
–53.920dB
–38.646dBm
1
FUNCTION
BAND POWER
BAND POWER
BAND POWER
FUNCTION
BAND POWER
BAND POWER
BAND POWER
FUNCTION
BAND POWER
BAND POWER
BAND POWER
2Δ1
SWEEP 24.1s (1001pts)
SWEEP 24.1s (1001pts)
SWEEP 24.1s (1001pts)
FUNCTION
WIDTH
FUNCTION
WIDTH
FUNCTION
WIDTH
6MHz
6MHz
6MHz
6MHz
6MHz
6MHz
6MHz
6MHz
6MHz
3Δ1
STOP 1GHz
STOP 1GHz
STOP 1GHz
3
FUNCTION
VALUE
(Δ)
(Δ)
FUNCTION
VALUE
(Δ)
FUNCTION
VALUE
(Δ)
2Δ1
–33.680dBm
3
–34.413dBm
–36.289dBm
–35.909dBm
–38.646dBm
–46.450dB
–56.577dB
–56.033dB
–53.920dB
A
= 25°C, unless otherwise noted.
Rev. | Page 25 of 64
C
–100
–110
–120
–130
–100
–110
–120
–130
–100
–110
–120
–130
–50
–60
–70
–80
–90
–50
–60
–70
–80
–90
–50
–60
–70
–80
–90
CARRIER POWER –33.368dBm/6MHz
OFFSET FREQ
3.375MHz
6.375MHz
12.00MHz
18.00MHz
24.00MHz
Figure 76. 64-Carrier High Band Narrow-Band ACLR
CARRIER POWER –38.456dBm/6MHz
OFFSET FREQ
3.375MHz
6.375MHz
12.00MHz
18.00MHz
24.00MHz
CENTER 832MHz
#RES BW 30kHz
CENTER 448MHz
#RES BW 30kHz
Figure 75. 64-Carrier Low Band Narrow-Band ACLR
CARRIER POWER –33.849dBm/6MHz
OFFSET FREQ
3.375MHz
6.375MHz
12.00MHz
18.00MHz
24.00MHz
CENTER 600MHz
#RES BW 30kHz
0.1dBc
–58.0dBc
0.3dBc
Figure 77. 128-Carrier Narrow-Band ACLR
0.3dBc
0.1dBc
–57.8dBc
INTEG BW
750.0kHz
5.250MHz
6.000MHz
6.000MHz
6.000MHz
INTEG BW
750.0kHz
5.250MHz
6.000MHz
6.000MHz
6.000MHz
INTEG BW
750.0kHz
5.250MHz
6.000MHz
6.000MHz
6.000MHz
0.0dBc
–58.4dBc
0.4dBc
–0.337
–0.210
–11.02
–11.07
–58.63
–59.29
–58.37
–57.84
–58.04
0.050
0.064
0.099
0.353
0.253
0.292
dBc
dBc
dBc
–0.4dBc
–0.2dBc
–59.3dBc
LOWER
LOWER
LOWER
–44.39
–33.74
–33.32
–33.30
–33.27
–49.53
–38.67
–38.10
–38.20
–38.16
–92.48
–93.14
–92.22
–91.69
–91.89
VBW 3kHz
VBW 3kHz
dBm
VBW 3kHz
dBm
dBm
ACP-IBW
ACP-IBW
ACP-IBW
–33.4dBm
–38.5dBm
–33.8dBm
–59.56
–60.04
–58.69
–59.04
–58.86
–59.28
–54.33
–53.36
–53.35
–53.07
–11.06
–0.380
–0.004
–0.012
0.043
AD9737A/AD9739A
dBc
dBc
dBc
UPPER
UPPER
UPPER
–60.0dBc
–54.3dBc
–92.93
–93.41
–92.06
–92.40
–92.23
––0.4dBc
–97.73
–92.79
–91.82
–91.81
–91.53
–44.91
–34.23
–33.85
–33.86
–33.81
dBm
dBm
dBm
–58.7dBc
–53.4dBc
FILTER
OFF
OFF
OFF
OFF
OFF
FILTER
OFF
OFF
OFF
OFF
OFF
FILTER
OFF
OFF
OFF
OFF
OFF
0.0dBc
SWEEP 1.49s
–59.0dBc
SWEEP 1.49s
SPAN 54MHz
SWEEP 1.49s
–53.3dBc
SPAN 54MHz
SPAN 54MHz
0.0dBc
–58.9dBc
–53.1dBc
0.0dBc