adf4206 Analog Devices, Inc., adf4206 Datasheet - Page 15

• Manufacturer Part Number: adf4206
• Description: Dual Rf Pll Frequency Synthesizers
• Manufacturer: Analog Devices, Inc.

DB21
P7
0
1
P7
DB20 DB19 DB18 DB17 DB16 DB15 DB14
P6
P6
0
1
RF2 SECTION
NORMAL OPERATION
POWER-DOWN
B11
B
0
0
0
0
.
.
.
1
1
1
1
1
1
RF2 PRESCALER
64/65
32/33
B10
B9
B
0
0
0
0
.
.
.
1
1
1
1
1
0
B8
B7
B
0
0
0
0
.
.
.
1
1
1
1
11-BIT B COUNTER
9
B6
..........
..........
..........
..........
..........
..........
..........
..........
..........
..........
..........
DB13 DB12 DB11 DB10
B5
Figure 29. RF2 AB Counter Latch Map
RF2 AB COUNTER LATCH
B4
B
0
0
0
0
.
.
.
1
1
1
1
3
A6
X
X
X
X
.
.
.
X
X
Rev. A | Page 15 of 24
B3
B2
B
0
0
1
1
.
.
.
0
0
1
1
2
A5
X
X
X
X
.
.
.
X
X
DB9
B1
N = BP + A, P IS PRESCALER VALUE SET BY P6. B MUST BE GREATER
THAN OR EQUAL TO A. TO ENSURE CONTINUOUSLY ADJACENT VALUES
OF N × F
B
0
1
0
1
.
.
.
0
1
0
1
DB8
1
A4
0
0
0
0
.
.
.
1
1
REF
, N
DB7
A6
MIN
B
NOT ALLOWED
NOT ALLOWED
2
3
.
.
.
2044
2045
2046
2047
C
IS (P
A3
0
0
0
0
.
.
.
1
1
O
A5
DB6
U
N
2
6-BIT A COUNTER
T
– P).
E
R
DB5
A4
D
V I
A2
0
0
1
1
.
.
.
1
1
D I
E
DB4
A3
R
A
I T
O
DB3
A2
A1
0
1
0
1
.
.
.
0
1
ADF4206/ADF4208
DB2
A1
A COUNTER
DIVIDE RATIO
0
1
2
3
14
15
C2 (0)
DB1
CONTROL
BITS
C1 (1)
DB0