ADF4110 Analog Devices, ADF4110 Datasheet - Page 14

• Manufacturer Part Number: ADF4110
• Description: Single, Integer-N, 550 MHZ PLL With Programmable Prescaler And Charge Pump
• Manufacturer: Analog Devices

ADF4110/ADF4111/ADF4112/ADF4113
DB23 DB22
RESERVED
THESE BITS ARE NOT USED
BY THE DEVICE AND ARE
DON'T CARE BITS
X
X
*SEE TABLE 5
F4 (FUNCTION LATCH)
FASTLOCK ENABLE*
DB21 DB20
G1
X = DON'T CARE
B13
0
0
1
1
DB19 DB18 DB17 DB16 DB15 DB14
B12
B13
0
0
0
0
0
1
1
1
1
•
•
•
B11
CP GAIN
B12
B10
0
0
0
0
0
1
1
1
1
•
•
•
0
1
0
1
B9
B11
0
0
0
0
0
1
1
1
1
•
•
•
CHARGE PUMP CURRENT
SETTTING 1 IS PERMANENTLY USED
CHARGE PUMP CURRENT SETTING
2 IS PERMANENTLY USED
CHARGE PUMP CURRENT SETTING
1 IS USED
CHARGE PUMP CURRENT IS SWITCHED
TO SETTING 2. THE TIME SPENT IN
SETTING 2 IS DEPENDENT UPON WHICH
FASTLOCK MODE IS USED. SEE FUNCTION
LATCH DESCRIPTION
13-BIT B COUNTER
B8
Table IV. AB Counter Latch Map
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B7
OPERATION
DB13
B6
B3
DB12
0
0
0
0
1
1
1
1
1
•
•
•
B5
DB11 DB10
B4
B2
0
0
1
1
0
0
0
1
1
•
•
•
B3
A6
0
0
0
0
1
1
1
1
•
•
•
B1
DB9
B2
0
1
0
1
0
0
1
0
1
•
•
•
N = BP + A, P IS PRESCALER VALUE SET IN THE
FUNCTION LATCH B MUST BE GREATER THAN OR
EQUAL TO A. FOR CONTINUOUSLY ADJACENT VALUES
OF (N
A5
0
0
0
0
1
1
1
1
•
•
•
B COUNTER DIVIDE RATIO
DB8
B1
X
F
NOT ALLOWED
NOT ALLOWED
NOT ALLOWED
REF
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DB7
A6
), AT THE OUTPUT, N
8188
8189
8190
8191
3
4
•
•
•
DB6
A5
6-BIT A COUNTER
A2
DB5
A4
0
0
1
1
0
0
1
1
•
•
•
DB4
A3
MIN
A1
0
1
0
1
0
1
0
1
•
•
•
IS (P
DB3
A2
2
-P).
DB2
A1
DIVIDE RATIO
A COUNTER
C2 (0) C1 (1)
DB1
CONTROL
60
61
62
63
0
1
2
3
•
•
•
BITS
DB0