Sundance SMT712 User Manual
Page 71
User Manual SMT712
Page 71 of 89
Last Edited: 11/12/2012 10:36:00
Clock Generator (AD9516-2) Register 0x1E0 – VCO Divider – 0x1AC (write)
Setting
Bit 2..0
Description (VCO Divider)
7
‘111’
Output static.
6
‘110’
Output static.
5
‘101’
Output static.
4
‘100’
6
3
‘011’
5
2
‘010’
4
1
‘001’
3
0
‘000’
2
4.6.1.1.65
Clock Generator (AD9516-2) Register 0x1E1 – Input CLKs
– 0x1B0 (write).
Clock Generator (AD9516-2) Register 0x1E1 – Input CLKs – 0x1B0 (write)
Byte
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
Reserved
Power-
down
Clock
Input
Section
Power-
down
VCO
Clock
Interface
Power-
down VCO
and CLK
Select
VCO or
CLK
Bypass
VCO
Divider
Default
‘000’
‘0’
‘0’
‘0’
‘0’
‘0’
Clock Generator (AD9516-2) Register 0x1E1 – Input CLKs – 0x1B0 (write)
Setting
Bit 4
Description (Power-down Clock Input Section)
0
0
normal operation.
1
1
power-down.
Setting
Bit 3
Description (Power-down VCO Clock Interface)
0
0
normal operation.
1
1
power-down.
Setting
Bit 2
Description (Power-down VCO and CLK)
0
0
normal operation.
1
1
power-down.
Setting
Bit 1
Description (Select VCO or CLK)
0
0
select external CLK as input to VCO divider.
1
1
select VCO as input to VCO divider; cannot bypass VCO divider when this is selected.
Setting
Bit 0
Description (Bypass VCO Divider)
0
0
use VCO divider.
1
1
bypass VCO divider.