AD9852AST Analog Devices Inc, AD9852AST Datasheet - Page 32

• Manufacturer Part Number: AD9852AST
• Manufacturer: Analog Devices Inc

Specifications of AD9852AST

• Lead Free Status / RoHS Status: Not Compliant

AD9852
Table 9. Register Layout
Parallel
Address
(Hex)
00
01
02
03
04
05
06
07
08
09
0A
0B
0C
0D
0E
0F
10
11
12
13
14
15
16
17
18
19
1A
1B
1C
1D
1E
1F
20
21
22
23
24
25
26
27
1
The shaded sections comprise the control register.
Serial
Address
(Hex)
0
1
2
3
5
6
7
8
9
A
B
1
Bit 7
Phase Adjust Register 1 <13:8> (Bits 15, 14 don’t care)
Phase Adjust Register 1 <7:0>
Phase Adjust Register 2 <13:8> (Bits 15, 14 don’t care)
Phase Adjust Register 2 <7:0>
Frequency Tuning Word 1 <47:40>
Frequency Tuning Word 1 <39:32>
Frequency Tuning Word 1 <31:24>
Frequency Tuning Word 1 <23:16>
Frequency Tuning Word 1 <15:8>
Frequency Tuning Word 1 <7:0>
Frequency Tuning Word 2 <47:40>
Frequency Tuning Word 2 <39:32>
Frequency Tuning Word 2 <31:24>
Frequency Tuning Word 2 <23:16>
Frequency Tuning Word 2 <15:8>
Frequency Tuning Word 2 <7:0>
Delta frequency word <47:40>
Delta frequency word <39:32>
Delta frequency word <31:24>
Delta frequency word <23:16>
Delta frequency word <15:8>
Delta frequency word <7:0>
Update clock <31:24>
Update clock <23:16>
Update clock <15:8>
Update clock <7:0>
Ramp rate clock <19:16> (Bits 23, 22, 21, 20, don’t care)
Ramp rate clock <15:8>
Ramp rate clock <7:0>
Don’t care
CR [31]
Don’t care
CLR ACC1
Don’t care
Output shaped keying multiplier <11:8> (Bits 15, 14, 13, 12 don’t care)
Output shaped keying multiplier <7:0>
Don’t care
Don’t care
Output shaped keying ramp rate <7:0>
Control DAC <11:8> (Bits 15, 14, 13, 12 don’t care)
Control DAC <7:0> (Data is required to be in twos complement format)
Bit 6
Don’t care
PLL range
CLR ACC2
Bypass inv
sinc
Bit 5
Don’t
care
Bypass
PLL
Triangle
OSK EN
Rev. E | Page 32 of 52
AD9852 Register Layout
Bit 4
Comp
PD
Ref
Mult 4
Don’t
care
OSK INT
Bit 3
Reserved,
always
low
Ref
Mult 3
Mode 2
Don’t care
Bit 2
Phase 1
Phase 2
Frequency 1
Frequency 2
Control
DAC PD
Ref Mult 2
Mode 1
Don’t care
DAC PD
Ref
Mult 1
Mode 0
LSB first
Bit 1
Bit 0
DIG PD
Ref Mult 0
Int/Ext
update clock
SDO active
CR [0]
Default
Value
(Hex)
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
10
64
01
20
00
00
00
00
80
00
00