AD9951/PCB Analog Devices Inc, AD9951/PCB Datasheet - Page 14

• Manufacturer Part Number: AD9951/PCB
• Description: BOARD EVAL FOR AD9951
• Manufacturer: Analog Devices Inc
• Type: DDS (Direct Digital Synthesis)r

Specifications of AD9951/PCB

• Rohs Status: RoHS non-compliant
• Contents: *
• For Use With/related Products: AD9951

AD9951
Table 5. Register Map
Register
Name
(Serial
Address)
Register No.
Scale Factor
Offset Word
Ramp Rate
Amplitude
Amplitude
Frequency
Function
Function
Register
2 (CFR2)
Control
Control
(POW0)
Tuning
(FTW0)
(CFR1)
(0x00)
(0x01)
(0x02)
(0x03)
(0x04)
(0x05)
Phase
(ARR)
(ASF)
Word
No.1
Bit
Range
<23:16>
<31:24>
<23:16>
<23:16>
<31:24>
<15:8>
<15:8>
<15:8>
<15:8>
<15:8>
<7:0>
<7:0>
<7:0>
<7:0>
<7:0>
<7:0>
(MSB)
Bit 7
Automatic
Auto Ramp Rate Speed
Not Used
Power-
Enable
Digital
Down
Sync
Not Used<1:0>
Control <1:0>
0x00 or 0x01, or 0x02 or 0x03: Bypass Multiplier
0x04 to 0x14: 4× to 20× Multiplication
Bit 6
Not Used
Not Used
Software
Manual
Sync
Not Used
REFCLK Multiplier
Bit 5
Not Used
AutoClr
Power-
Accum
Down
Phase
DAC
Amplitude Scale Factor Register <7:0>
Frequency Tuning Word No. 0 <23:16>
Frequency Tuning Word No. 0 <31:24>
Amplitude Ramp Rate Register <7:0>
Frequency Tuning Word No. 0 <15:8>
Frequency Tuning Word No. 0 <7:0>
Rev. A | Page 14 of 28
Phase Offset Word No. 0 <7:0>
Bit 4
Enable SINE
Clock Input
Output
Power-
Down
Amplitude Scale Factor Register <13:8>
Not Used
Phase Offset Word No. 0 <13:8>
Bit 3
Not Used
External
Power-
Down
Enable
Mode
Speed
High
Sync
Not Used
Bit 2
Load ARR
Hardware
Not Used
@ I/O UD
Accum.
Manual
Enable
Range
Phase
Clear
Sync
VCO
Bit 1
SYNC_CLK
Charge Pump Current
CRYSTAL
OUT Pin
Disable
Enable
Active
Input
SDIO
Only
OSK
Out
<1:0>
(LSB)
Bit 0
LSB First
Keying
Used
Auto
Used
OSK
Not
Not
Default
Value
0x00
0x00
0x00
0x00
0x00
0x00
0x18
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00