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AD9954/PCBZ 数据表(PDF) 14 Page - Analog Devices

部件名 AD9954/PCBZ
功能描述  400 MSPS 14-Bit, 1.8 V CMOS Direct Digital Synthesizer
PDF  28 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

AD9954/PCBZ 数据表(HTML) 14 Page - Analog Devices

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AD9951
Rev. A | Page 14 of 28
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
Control
Function
Register
No.1
(CFR1)
(0x00)
<7:0>
Digital
Power-
Down
Not Used
DAC
Power-
Down
Clock Input
Power-
Down
External
Power-
Down
Mode
Not Used
SYNC_CLK
Out
Disable
Not
Used
0x00
<15:8>
Not Used
Not Used
AutoClr
Phase
Accum
Enable SINE
Output
Not Used
Clear
Phase
Accum.
SDIO
Input
Only
LSB First
0x00
<23:16>
Automatic
Sync
Enable
Software
Manual
Sync
Not Used
0x00
<31:24>
Not Used
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



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