參數(shù)資料
型號： AD9858
廠商： Analog Devices, Inc.
元件分類： XO, clock
英文描述： 1 GSPS Direct Digital Synthesizer
中文描述： 1 GSPS的直接數(shù)字頻率合成器
文件頁數(shù)： 24/32頁
文件大?。?/td> 1412K
代理商： AD9858
AD9858
Table 6. Register Map
Register
Name
Rev. A | Page 24 of 32
Address
Ser
Bit 6
2 GHz
Divider
Disable
Enable
Sine
Output
Bit 5
SYNCLK
Out
Disable
Bit 4
Mixer
Power
Down
Bit 3
Phase
Detect
PwrDwn
Bit 2
Power
Down
Bit 1
SDIO
Input
Only
Phase Detector
Divider Ratio
(M)
(see Table 11)
(LSB)
Bit 0
LSB
First
Profile
N/A
Par
0x00
(MSB)
Bit 7
Default
Value
0x18
<7:0>
Not
Used
0x01
<15:8>
Freq.
Sweep
Enable
Charge
Pump
Offset
Bit
Load
Delta-
Freq
Timer
Phase Detector
Divider Ratio (N)
(see Table 10)
Charge
Pump
Polarity
0x00
N/A
0x02
<23:16>
AutoClr
Freq.
Accum
AutoClr
Phase
Accum
Clear
Freq
Accum
Clear
Phase
Accum
Open
Fast-
Lock
Enable
Don’t
Use
FTW
for
Fast-
Lock
0x00
N/A
Control
Function
Register
(CFR)
0x00
0x03
<31:24>
Frequency Detect
Charge Pump
Current
(see Table 7)
Final Closed-Loop Charge
Pump Current
(see Table 8)
Wide Closed-Loop Charge
Pump Current
(see Table 9)
0x00
N/A
0x04
0x05
0x06
0x07
0x08
0x09
0x0A
0x0B
0x0C
0x0D
0x0E
0x0F
0x10
0x11
0x12
0x13
0x14
0x15
0x16
0x17
0x18
0x19
0x1A
0x1B
0x1C
0x1D
0x1E
0x1F
0x20
0x21
0x22
0x23
Delta Frequency Word <7:0>
Delta Frequency Word <15:8>
Delta Frequency Word <23:16>
Delta Frequency Word <31:24>
Delta Frequency Ramp Rate Word <7:0>
Delta Frequency Ramp Rate Word <15:8>
Frequency Tuning Word No. 0 <7:0>
Frequency Tuning Word No. 0 <15:8>
Frequency Tuning Word No. 0 <23:16>
Frequency Tuning Word No. 0 <31:24>
Phase Offset Word No. 0 <7:0>
Not Used
Frequency Tuning Word No. 1 <7:0>
Frequency Tuning Word No. 1 <15:8>
Frequency Tuning Word No. 1 <23:16>
Frequency Tuning Word No. 1 <31:24>
Phase Offset Word No. 1 <7:0>
Not Used
Frequency Tuning Word No. 2 <7:0>
Frequency Tuning Word No. 2 <15:8>
Frequency Tuning Word No. 2 <23:16>
Frequency Tuning Word No. 2 <31:24>
Phase Offset Word No. 2 <7:0>
Not Used
Frequency Tuning Word No. 3 <7:0>
Frequency Tuning Word No. 3 <15:8>
Frequency Tuning Word No. 3 <23:16>
Frequency Tuning Word No. 3 <31:24>
Phase Offset Word No. 3 <7:0>
Not Used
Reserved, Do Not Write, Leave at 0xFF
Reserved, Do Not Write, Leave at 0xFF
–
–
–
–
–
–
0x00
0x00
0x00
0x00
0x00
0x00
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
0xFF
0xFF
N/A
N/A
N/A
N/A
N/A
N/A
0
0
0
0
0
0
1
1
1
1
1
1
2
2
2
2
2
2
3
3
3
3
3
3
N/A
N/A
Delta-Freq
Tuning Word
(DFTW)
0x01
Delta-Freq Ramp
Rate (DFRRW)
0x02
Frequency
Tuning Word
No. 0 (FTW0)
0x03
Phase Offset
Word 0 (POW0)
0x04
Not Used
Phase Offset Word No. 0 <13:8>
Frequency
Tuning
Word No.1(FTW1)
0x05
Phase Offset
Word 1 (POW1)
0x06
Not Used
Phase Offset Word No. 1 <13:8>
Frequency
Tuning Word
No. 2 (FTW2)
0x07
Phase Offset
Word 2 (POW2)
0x08
Not Used
Phase Offset Word No. 2 <13:8>
Frequency
Tuning Word
No. 3 (FTW3)
0x09
Phase Offset
Word 3 (POW3)
0x0A
Not Used
Phase Offset Word No. 3 <13:8>
Reserved
0x0B
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