REV. A

ADF4210/ADF4211/ADF4212/ADF4213

–13–

Table IV. IF N Counter Latch Map

B12

B11

B10

B3

B2

B1

B COUNTER DIVIDE RATIO

000..........

0113

000..........

1004

.............

....

.............

....

.............

....

1

1

1

..........

1

0

0

4092

1

1

1

..........

1

0

1

4093

1

1

1

..........

1

1

0

4094

1

1

1

..........

1

1

1

4095

0

0

..........

0

1

1

0

0

..........

1

0

2

0

0

..........

1

1

3

0

0

..........

0

0

4

.

.

..........

.

.

.

.

.

..........

.

.

.

.

.

..........

.

.

.

1

1

..........

0

0

60

1

1

..........

0

1

61

1

1

..........

1

0

62

1

1

..........

1

1

63

N = BP + A, P IS PRESCALER VALUE SET IN THE FUNCTION LATCH.

B MUST BE GREATER THAN OR EQUAL TO A. FOR CONTIGUOUS

VALUES OF N

0

0

8/9

0

1

16/17

1

0

32/33

1

1

64/65

0

DISABLE

1

ENABLE

DB20 DB19 DB18 DB17 DB16 DB15

DB14

DB13

DB12

DB11

DB10

DB9

DB8

DB7

DB6

DB5

DB4

DB3

DB2

DB1

DB0

C2 (0)

C1 (1)

A1

A2

A3

A4

A5

A6

B12

P5

CONTROL

BITS

12-BIT B COUNTER

DB21

IF N COUNTER LATCH

DB23 DB22

IF

PRESCALER

P6

P7

P8

B11

B10

B9

B8

B7

B6

B5

B4

B3

B2

B1

6-BIT A COUNTER

0

DISABLE

1

ENABLE

P6

P5

IF PRESCALER

P7

IF POWER-DOWN

A6

A5

..........

A2

A1

A COUNTER

DIVIDE RATIO

P8

IF CP GAIN