ADF5902

Data Sheet

Rev. 0 | Page 24 of 39

DB31 DB30 DB29 DB28 DB27 DB26 DB25 DB24 DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2

DB1

DB0

01

0

0

0

0

0

0

CONTROL

BITS

0

0

0

0

0

0

0

0

0

FC9

FC8

FC7

FC6

FC5 FC4 FC3 FC2 FC1 FC0

C4(1) C3(0) C2(0) C1(0)

FREQENCY CAL DIVIDER

C5(0)

RESERVED

FC9

FC8

...

FC4

FC3

FC2

FC1

FC0

0

0

...

0

0

0

0

0

0

0

...

0

0

0

0

1

0

0

...

0

0

0

1

0

.

.

...

.

.

.

.

.

1

2

.

.

...

.

.

.

.

.

...

1

1

...

1

1

1

0

1

1021

1

1

...

1

1

1

1

0

1023

1

1

...

1

1

1

1

1

1024

FREQUENCY CAL

DIVIDER

...

0

Figure 32. Register 8 (R8)

DB31 DB30 DB29 DB28 DB27 DB26 DB25 DB24 DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2

DB1

DB0

0

01

0

1

010

0

CONTROL

BITS

0

1

0

0

0

0

0

1

0

1

1

1

0

0

1

0

0

1

C4(1) C3(0) C2(0) C1(1)

C5(0)

RESERVED

Figure 33. Register 9 (R9 0x2A20B929)

DB31 DB30 DB29 DB28 DB27 DB26 DB25 DB24 DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2

DB1

DB0

00

1

0

1

0

0

0

0

CONTROL

BITS

0

0

000

001

0

111

0

0

1

0

0

1

C4(1) C3(0) C2(0) C1(1)

C5(0)

RESERVED

Figure 34. Register 9 (R9 0x2800B929)

REGISTER 8

Control Bits

With Bits[C5:C1] set to 01000, Register R8 is programmed.

Figure 32 shows the input data format for programming this

register.

Reserved

Bits[DB31:DB15] are reserved and must be set as shown in

Figure 32.

Frequency Calibration Divider

Bits[DB14:DB5] set a divider for the VCO frequency calibration

frequency calibration divider is less than or equal to 100 kHz

(see Figure 32).

REGISTER 9

The bits in Register 9 are reserved and must be programmed as

shown in Figure 32 using a hexadecimal word of 0x2A20B929,

prior to the VCO calibration.

The bits in Register 9 must be programmed as described in

Figure 32, using a hexadecimal word of 0x2800B929 for normal

operation.

See the Applications Information section for more information.