AD6649 Analog Devices, AD6649 Datasheet - Page 35

• Manufacturer Part Number: AD6649
• Description: IF Diversity Receiver
• Manufacturer: Analog Devices

Data Sheet
Addr
(Hex)
0x51
0x52
0x53
0x54
0x55
0x56
0x57
0x58
0x59
0x5A
1
The channel index register at Address 0x05 should be set to 0x03 (default) when writing to Address 0x00.
Register
Name
NCO control
(local)
NCO
Frequency 3
(local)
NCO
Frequency 2
(local)
NCO
Frequency 1
(local)
NCO
Frequency 0
(local)
NCO Phase
Offset 1 (local)
NCO Phase
Offset 0 (local)
Sync control
(local)
NCO/FIR sync
pin control
(local)
NCO Control 2
(local)
Bit 7
(MSB)
Reserved
f
next sync
only
Open
Open
S
/4 NCO
Bit 6
NCO32 to
f
sync
enable
f
sync
enable
Open
Open
S
S
/4 NCO
/4 NCO
Bit 5
Spectral
reversal
FIR next
sync only
Open
Open
NCO frequency value[31:24]
NCO frequency value[23:16]
Bit 4
1
FIR Sync
Enable
Open
Open
NCO frequency value[15:8]
NCO frequency value[7:0]
NCO phase value[15:8]
Rev. A | Page 35 of 40
NCO phase value[7:0]
Bit 3
Reserved
Reserved
Open
Open
Bit 2
NCO32
amplitude
dither
enable
Reserved
Open
Open
Bit 1
NCO32
phase
dither
enable
NCO32
next sync
only
SYNC pin
sensitivity
0 = sync on
high level
1 = sync on
edge
Open
Bit 0
(LSB)
1
NCO32 sync
enable
SYNC pin
edge
sensitivity
0 = sync on
falling edge
1 = sync on
rising edge
Low latency
NCO select
Default
Value
(Hex)
0x51
0x40
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x01
AD6649
Default
Notes/
Comments