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AD9953 数据表(PDF) 14 Page - Analog Devices

部件名 AD9953
功能描述  400MSPS, 14-Bit, 1.8 V CMOS Direct Digital Synthesizer
PDF  32 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

AD9953 数据表(HTML) 14 Page - Analog Devices

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AD9953
Data Sheet
Rev. B | Page 14 of 32
Table 5. Register Map
Register
Name
(Serial
Address)
Bit
Range
(MSB)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
(LSB)
Bit 0
Default
Value
OR
Profile
Control
Function
Register
No.1
(CFR1)
(0x00)
<7:0>
Digital
Power-
Down
Comp
Power-
Down
DAC
Power-
Down
Clock Input
Power-
Down
External
Power-
Down
Mode
Linear
Sweep No
Dwell
SYNC_CLK
Out
Disable
Not
Used
0x00
<15:8>
Load SRR
@ I/O UD
AutoClr
Freq.
Accum.
AutoClr
Phase
Accum.
Enable
SINE
Output
Clear
Freq.
Accum.
Clear
Phase
Accum.
SDIO
Input
Only
LSB First
0x00
<23:16>
Automatic
Sync
Enable
Software
Manual
Sync
Linear
Sweep
Enable
Not Used
Not Used
Not Used
Not Used
Not
Used
0x00
<31:24>
RAM
Enable
RAM
Dest. Is
Phase
Word
Internal Profile Control <2:0>
Load ARR
@ I/O UD
OSK
Enable
Auto
OSK
Keying
0x00
Control
Function
Register
No. 2 (CFR2)
(0x01)
<7:0>
REFCLK Multiplier
0x00 or 0x01, or 0x02 or 0x03: Bypass Multiplier
0x04 to 0x14: 4× to 20× Multiplication
VCO Range
Charge Pump Current
<1:0>
0x00
<15:8>
Not Used
High
Speed
Sync
Enable
Hardware
Manual
Sync
Enable
CRYSTAL
OUT Pin
Active
Not
Used
0x00
<23:16>
Not Used
0x18
Amplitude
Scale Factor
(ASF)
(0x02)
<7:0>
Amplitude Scale Factor Register <7:0>
0x00
<15:8>
Auto Ramp Rate Speed
Control <1:0>
Amplitude Scale Factor Register <13:8>
0x00
Amplitude
Ramp Rate
(ARR)
(0x03)
<7:0>
Amplitude Ramp Rate Register <7:0>
0x00
Frequency
Tuning
Word
(FTW0)
(0x04)
<7:0>
Frequency Tuning Word No. 0 <7:0>
0x00
<15:8>
Frequency Tuning Word No. 0 <15:8>
0x00
<23:16>
Frequency Tuning Word No. 0 <23:16>
0x00
<31:24>
Frequency Tuning Word No. 0 <31:24>
0x00
Phase
Offset Word
(POW0)
(0x05)
<7:0>
Phase Offset Word No. 0 <7:0>
0x00
<15:8>
Not Used<1:0>
Phase Offset Word No. 0 <13:8>
0x00
Frequency
Tuning
Word
(FTW1)
(0x06)
<7:0>
Frequency Tuning Word No. 1 <7:0>
0x00
<15:8>
Frequency Tuning Word No. 1 <15:8>
0x00
<23:16>
Frequency Tuning Word No. 1 <23:16>
0x00
<31:24>
Frequency Tuning Word No. 1 <31:24>
0x00



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