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AD9911 Schematic ( PDF Datasheet ) - Analog Devices

Teilenummer AD9911
Beschreibung 500 MSPS Direct Digital Synthesizer
Hersteller Analog Devices
Logo Analog Devices Logo 




Gesamt 30 Seiten
AD9911 Datasheet, Funktion
Data Sheet
500 MSPS Direct Digital Synthesizer
with 10-Bit DAC
AD9911
FEATURES
Patented SpurKiller technology
Multitone generation
Test-tone modulation
Up to 800 Mbps data throughput
Matched latencies for frequency/phase/amplitude changes
Linear frequency/phase/amplitude sweeping capability
Up to 16 levels of FSK, PSK, ASK
Programmable DAC full-scale current
32-bit frequency tuning resolution
14-bit phase offset resolution
10-bit output amplitude-scaling resolution
Software-/hardware-controlled power-down
Multiple device synchronization
Selectable 4× to 20× REF_CLK multiplier (PLL)
Selectable REF_CLK crystal oscillator
56-lead LFCSP
APPLICATIONS
Agile local oscillator
Test and measurement equipment
Commercial and amateur radio exciter
Radar and sonar
Test-tone generation
Fast frequency hopping
Clock generation
GENERAL DESCRIPTION
The AD9911 is a complete direct digital synthesizer (DDS).
This device includes a high speed DAC with excellent wideband
and narrowband spurious-free dynamic range (SFDR) as well as
three auxiliary DDS cores without assigned digital-to-analog
converters (DACs). These auxiliary channels are used for spur
reduction, multitone generation, or test-tone modulation.
The AD9911 is the first DDS to incorporate SpurKiller
technology and multitone generation capability. Multitone
mode enables the generation up to four concurrent carriers;
frequency, phase and amplitude can be independently
programmed. Multitone generation can be used for system
tests, such as inter-modulation distortion and receiver blocker
sensitivity. SpurKilling enables customers to improve SFDR
performance by reducing the magnitude of harmonic
components and/or the aliases of those harmonic components.
Test-tone modulation efficiently enables sine wave modulation
of amplitude on the output signal using one of the auxiliary
DDS cores.
The AD9911 can perform modulation of frequency, phase, or
amplitude (FSK, PSK, ASK). Modulation is implemented by
storing profiles in the register bank and applying data to the
profile pins. In addition, the AD9911 supports linear sweep of
frequency, phase, or amplitude for applications such as radar
and instrumentation.
(continued on Page 3)
500MSPS
DDS CORE
10-BIT DAC
SYSTEM
CLOCK
SOURCE
SPUR REDUCTION/
MODULATION CONTROL
MULTITONE
REF CLOCK
INPUT CIRCUITRY
TIMING AND
CONTROL
RECONSTRUCTED
SINE WAVE
USER INTERFACE
Figure 1. Basic Block Diagram
Rev. A
Document Feedback
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responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
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One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2006–2016 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com






AD9911 Datasheet, Funktion
AD9911
Parameter
Residual Phase Noise @ 15.1 MHz (fOUT) with
REF_CLK Multiplier Enabled 5×
1 kHz Offset
10 kHz Offset
100 kHz Offset
1 MHz Offset
Residual Phase Noise @ 40.1 MHz (fOUT)
with REF_CLK Multiplier Enabled 5×
1 kHz Offset
10 kHz Offset
100 kHz Offset
1 MHz Offset
Residual Phase Noise @ 75.1 MHz (fOUT) with
REF_CLK Multiplier Enabled 5×
1 kHz Offset
10 kHz Offset
100 kHz Offset
1 MHz Offset
Residual Phase Noise @ 100.3 MHz(fOUT) with
REF_CLK Multiplier Enabled 5×
1 kHz Offset
10 kHz Offset
100 kHz Offset
1 MHz Offset
Residual Phase Noise @ 15.1 MHz (fOUT)
with REF_CLK Multiplier Enabled 20×
1 kHz Offset
10 kHz Offset
100 kHz Offset
1 MHz Offset
Residual Phase Noise @ 40.1 MHz (fOUT)
with REF_CLK Multiplier Enabled 20×
1 kHz Offset
10 kHz Offset
100 kHz Offset
1 MHz Offset
Residual Phase Noise @ 75.1 MHz (fOUT)
with REF_CLK Multiplier Enabled 20×
1 kHz Offset
10 kHz Offset
100 kHz Offset
1 MHz Offset
Residual Phase Noise @ 100.3 MHz (fOUT)
with REF_CLK Multiplier Enabled 20×
1 kHz Offset
10 kHz Offset
100 kHz Offset
1 MHz Offset
Min
Typ Max
–139
–149
–153
–148
–130
–140
–145
–139
–123
–134
–138
–132
–120
–130
–135
–129
–127
–136
–139
–138
–117
–128
–132
–130
–110
–121
–125
–123
–107
–119
–121
–119
Data Sheet
Unit Test Conditions/Comments
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
Rev. A | Page 6 of 41

6 Page









AD9911 pdf, datenblatt
AD9911
TYPICAL PERFORMANCE CHARACTERISTICS
REF LVL
0dBm
0
1
–10
DELTA 1 (T1)
–71.73dB
4.50901804MHz
RBW
VBW
SWT
20kHz
20kHz
1.6s
RF ATT
UNIT
20dB
dB
A
–20 1AP
–30
–40
–50
–60
–70
1
–80
–90
–100
START 0Hz
25MHz/DIV
STOP 250MHz
Figure 7. fOUT = 1.1 MHz, fCLK = 500 MSPS, Wideband SFDR
REF LVL
0dBm
0
–10
1
DELTA 1 (T1)
RBW
–62.84dB
VBW
40.08016032MHz SWT
20kHz
20kHz
1.6s
RF ATT
UNIT
20dB
dB
A
–20
1AP
–30
–40
–50
–60
1
–70
–80
–90
–100
START 0Hz
25MHz/DIV
STOP 250Hz
Figure 8. fOUT = 40.1 MHz, fCLK = 500 MSPS, Wideband SFDR
REF LVL
0dBm
0
–10
DELTA 1 (T1)
–59.04dB
100.70140281MHz
RBW
VBW
SWT
1
20kHz
20kHz
1.6s
RF ATT
UNIT
20dB
dB
A
–20
1AP
–30
–40
–50
–60
1
–70
–80
–90
–100
START 0Hz
25MHz/DIV
STOP 250MHz
Figure 9. fOUT = 100.3 MHz, fCLK = 500 MSPS, Wideband SFDR
Data Sheet
REF LVL
0dBm
0
1
–10
DELTA 1 (T1)
RBW
–69.47dB
VBW
30.06012024MHz SWT
20kHz
20kHz
1.6s
RF ATT
UNIT
20dB
dB
A
–20 1AP
–30
–40
–50
–60
–70
1
–80
–90
–100
START 0Hz
25MHz/DIV
STOP 250MHz
Figure 10. fOUT = 15.1 MHz, fCLK = 500 MSPS, Wideband SFDR
REF Lv]
0dBm
0
–10
DELTA 1 (T1)
RBW
–60.13dB
VBW
75.15030060MHz SWT
1
20kHz
20kHz
1.6s
RF ATT
UNIT
20dB
dB
A
–20 1AP
–30
–40
–50
–60
1
–70
–80
–90
–100
START 0Hz
25MHz/DIV
STOP 250MHz
Figure 11. fOUT = 75.1 MHz, fCLK = 500 MSPS, Wideband SFDR
REF LVL
0dBm
0
–10
DELTA 1 (T1)
RBW
–53.84dB
VBW
–101.20240481MHz SWT
20kHz
20kHz
1.6s
RF ATT
UNIT
1
20dB
dB
A
–20 1AP
–30
–40
–50
–60 1
–70
–80
–90
–100
START 0Hz
25MHz/DIV
STOP 250MHz
Figure 12. fOUT = 200.3 MHz, fCLK = 500 MSPS, Wideband SFDR
Rev. A | Page 12 of 41

12 Page





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