AD9739-EBZ Analog Devices Inc, AD9739-EBZ Datasheet - Page 19

• Manufacturer Part Number: AD9739-EBZ
• Description: 14 Bit 2.5 GSPS DAC
• Manufacturer: Analog Devices Inc

Specifications of AD9739-EBZ

• Number Of Dac's: 1
• Number Of Bits: 14
• Outputs And Type: 1, Differential
• Sampling Rate (per Second): 2.5G
• Data Interface: SPI™
• Dac Type: Current
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Utilized Ic / Part: AD9739
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

DOCSIS PERFORMANCE
(DOCSIS SPEC (Red Line) Is 73 dBc ; Harmonic Exception Is 63 dBc)
–10
–20
–30
–40
–50
–60
–70
–80
–90
Figure 46. Single-Carrier DOCSIS ACLR Spectral Plot @ 91 MHz
Figure 47. Single-Carrier DOCSIS Close-in ACLR Plot @ 91 MHz
Figure 48. Single-Carrier DOCSIS Close-in ACLR Plot @ 91 MHz
0
CENTER 95.08GHz
#RES BW 30kHz
CENTER 95.08GHz
#RES BW 56kHz
RMS RESULTS
CARRIER POWER
–14.51dBm/
6MHz
RMS RESULTS
CARRIER POWER
–14.48dBm/
6MHz
0
100
200
FREQ
OFFSET
(MHz)
3.375
6.375
FREQ
OFFSET
(MHz)
3.375
6.375
12.00
18.00
300
(Two Closest Channels)
(MHz)
(MHz)
400
REF
REF
5.25
5.25
VBW 500kHz
BW
750
VBW 300kHz
BW
750
6
6
f
OUT
–73.50
–76.03
–82.65
–82.62
–71.50
–76.09
(dBc)
(dBc)
500
(MHz)
LOWER
LOWER
–86.01
–90.59
–86.01
–90.59
–97.13
–97.10
(dBm)
(dBm)
600
SWEEP 16.76ms (601pts)
SWEEP 136.2ms (601pts)
–71.01
–76.20
–71.04
–76.81
–82.35
–82.50
700
(dBc)
(dBc)
UPPER
UPPER
800
–85.52
–90.70
–85.52
–90.70
–96.83
–96.98
(dBm)
(dBm)
SPAN 18MHz
SPAN 42MHz
900
1000
Rev. 0 | Page 19 of 56
(DOCSIS SPEC (Red Line) Is 73 dBc ; Harmonic Exception Is 63 dBc)
Figure 49. Single-Carrier DOCSIS ACLR Spectral Plot @ 325 MHz
Figure 50. Single-Carrier DOCSIS Close-in ACLR Plot @ 325 MHz
Figure 51. Single-Carrier DOCSIS Close-in ACLR Plot @ 325 MHz
–10
–20
–30
–40
–50
–60
–70
–80
–90
0
CENTER 322.35MHz
#RES BW 30kHz
CENTER 322.35MHz
#RES BW 30kHz
RMS RESULTS
CARRIER POWER
–17.11dBm/
6MHz
RMS RESULTS
CARRIER POWER
–17.06dBm/
6MHz
0
100
200
FREQ
OFFSET
(MHz)
3.375
6.375
FREQ
OFFSET
(MHz)
3.375
6.375
12.00
18.00
300
(Two Closest Channels)
(MHz)
(MHz)
400
REF
5.25
REF
5.25
VBW 300kHz
BW
750
VBW 300kHz
BW
750
6
6
f
OUT
–74.62
–77.09
–72.35
–76.50
–79.37
–79.38 –96.45 –79.04 –96.10
(dBc)
(dBc)
500
(MHz)
LOWER
LOWER
–91.73
–94.19
–89.41
–93.56
–96.43
(dBm)
(dBm)
600
SWEEP 136.2ms (601pts)
SWEEP 58.4ms (601pts)
–74.66
–77.55
–72.58
–77.89
–79.00
700
(dBc)
(dBc)
UPPER
UPPER
–91.77
–94.66
–89.64
–94.95
–96.06
800
SPAN 18MHz
(dBm)
SPAN 42MHz
(dBm)
AD9739
900
1000