AD6652BC/PCB Analog Devices Inc, AD6652BC/PCB Datasheet - Page 34
AD6652BC/PCB
Manufacturer Part Number
AD6652BC/PCB
Description
BOARD EVAL W/AD6652 & SOFTWARE
Manufacturer
Analog Devices Inc
Datasheet
1.AD6652BCPCB.pdf
(76 pages)
Specifications of AD6652BC/PCB
Module/board Type
Evaluation Board
For Use With/related Products
AD6652
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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AD6652
Clear Phase Accumulator on Hop
When Bit 3 is logic high, the NCO phase acc
(set to all zeros) at the beginning of the next frequency change.
This ensures a consistent phase of the NCO on each hop by
defeating the phase continuous feature. The NCO phase offs
unaffected by this setting. If phase continuous hopping is
desired, this bit should be cleared so that the last phase in the
NCO phase register becomes th
frequ ncy.
Reserved Bits
Bits 4 and 5 are reserved and should be written to Logic 0.
Input Select
Bit 6 of the NCO control register at Address 0x88 controls in
port selection. If this bit is set high, th
connected to the selected filter channel. If this bit is cleared,
then Input Port A is connected to the lected filter channel.
e
e beginning phase for the new
en Input Port B is
se
umulator is cleared
et is
Rev. 0 | Page 34 of 76
put
Sync Pin Select
Bits 7 and 8 of the NCO control register determine which
external sync pin (if any) is assigned to the channel of interes
The AD6652 has four s
SYNCD. Any sync pin can be assigned to any or all four receiver
channels of the AD6652; however, a channel can have only one
sync pin assigned to it. The sync pin(s) must als
the PIN_SYNC control register at Address 4 of the exter
mem ry map. T ble 13 s ows the it values sed to s ect a
sp
Ta
Bi
Ad
0
0
1
1
ecifi
ts to
ble
dre
o
13. Prog ammin Chann Addre
c extern sync p
ss/Bit 0
Choo
se a
x8
al
r
a
8:8
Sync Pi for a
Ad
0
1
0
1
ync pins: SYNCA, SYNCB, SYNCC, and
in.
g
h
n
dress/
Bit 0x88:7
Se
el
b
lected
ss R
NC
u
O
egister (CAR)
Selec
SYNC
SYNC
SYNC
SYNCD
o
be enabled in
A
B
C
ted
el
Syn
nal
c Pin
t.
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