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AD9953 数据表(PDF) 14 Page - Analog Devices

部件名 AD9953
功能描述  400 MSPS, 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
Rev. A | Page 14 of 32
able 5. Register Map
s)
it
ange
SB)
it 7
it 6
it 5
it 3
it 2
it 1
SB)
it 0
Default
Value
T
Register
Name
(Serial
Addres
B
R
(M
B
B
B
Bit 4
B
B
B
(L
B
OR
Profile
Control
Function
<7:0>
ital
Power-
p
Power-
Power-
Input
Power-
r-
ar
Sweep No
CLK
Out
Used
Register
No.1
(CFR1)
(0x00)
Dig
Down
Com
Down
DAC
Down
Clock
Down
External
Powe
Down
Mode
Line
Dwell
SYNC_
Disable
Not
0x00
<15:8>
L
@ I/O UD
A
A
LSB First
0x00
oad SRR
AutoClr
Freq.
Accum.
AutoClr
Phase
Accum.
Enable
SINE
Output
Clear
Freq.
ccum.
Clear
Phase
ccum.
SDIO
Input
Only
<23:16>
S
N
N
N
N
d
Not
Used
0x00
Automatic
Sync
Enable
oftware
Manual
Sync
Linear
Sweep
Enable
ot Used
ot Used
ot Used
ot Use
<31:24>
Enable
D
nal Profile Control <2:0>
Load ARR
@ I/O UD
OSK
Enable
OSK
Keying
0x00
RAM
RAM
est. Is
Phase
Word
Inter
Auto
Control
Function
N
<7:0>
0x00 or 0x01, or 0x02 or 0x03: Bypass Multiplier
0x04 to 0x14: 4× to 20× Multiplication
VCO Range
Charge Pump
<1:0>
0x00
Register
o. 2 (CFR2)
(0x01)
REFCLK Multiplier
Current
<15:8>
Not Used
High
Speed
Manual
CRYSTA
OUT Pin
Not
Used
0x00
Sync
Enable
Hardware
Sync
Enable
L
Active
<23:16>
Not Used
0x18
Amplitude
Scale Factor
<7:0>
Amplitude Scale Facto
r <7:
0x00
(ASF)
(0x02)
r Registe
0>
<15:8>
Auto Ramp Rate Speed
Control <1:0>
Amplitude Scale Factor Register <13:8>
0x00
Amplitude
Ra
e
<7:0>
Amplitude Ramp Rate Register <7:0>
0x00
mp Rat
(ARR)
(0x03)
Fr
y
<7:0>
Frequency Tuning Word No. 0 <7:0>
0x00
equenc
Tuning
Word
(FTW0)
(0x04)
<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
fset Wor
Of
d
(POW0)
(0x05)
<7:0>
Phase Offset Word No. 0 <7:0>
0x00
<15:8>
Not Used<1:0>
No. 0 <13:8>
Phase Offset Word
0x00
F
Frequency Tun
0x00
requency
Tuning
Word
(FTW1)
(0x06)
<7:0>
ing Word No. 1 <7:0>
<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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