ADF5902

Data Sheet

Rev. 0 | Page 16 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

1

0

0

0

000

0000

0

CONTROL

BITS

11

1

1

1

1

1

Tx2C Tx1C PVCO VCAL PADC PTx2 PTx1 PLO

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

C5(0)

RESERVED

PLO

0

1

PUP LO

POWER UP LO

POWER DOWN LO

PTx1

0

1

PUP Tx1

POWER UP Tx1

POWER DOWN Tx1

PTx2

0

1

PUP Tx2

POWER UP Tx2

POWER DOWN Tx2

PADC

0

1

PUP ADC

POWER UP ADC

POWER DOWN ADC

VCAL

0

1

VCO CAL

VCO FULL CAL

NORMAL OPERATION

PVCO

0

1

PUP VCO

POWER UP VCO

POWER DOWN VCO

Tx1C

0

1

Tx1 AMP CAL

Tx1 AMP CAL

NORMAL OPERATION

Tx2C

0

1

Tx2 AMP CAL

Tx2 AMP CAL

NORMAL OPERATION

Figure 24. Register 0 (R0)

REGISTER 0

Control Bits

With Bits[C5:C1] set to 00000, Register R0 is programmed.

Figure 24 shows the input data format for programming this

register.

Reserved

Bits[DB31:DB13] are reserved and must be set as shown in

Figure 24.

Transmitter 2 (Tx2) Amplitude Calibration

Bit DB12 provides the control bit for amplitude calibration of

the Tx2 output. Set this bit to 0 for normal operation. Setting

this bit to 1 performs an amplitude calibration of the Tx2

output. Bit DB12 is shown as Tx2 AMP CAL in Figure 24.

Tx1 Amplitude Calibration

Bit DB11 provides the control bit for amplitude calibration of

the Tx1 output. Set this bit to 0 for normal operation. Setting

this bit to 1 performs an amplitude calibration of the Tx1

output. Bit DB11 is shown as Tx1 AMP CAL in Figure 24.

Power-Up VCO

Bit DB10 provides the power-up bit for the VCO. Setting this bit

to 0 performs a power-down of the VCO. Setting this bit to 1

performs a power-up of the VCO. Bit DB10 is shown as PUP

VCO in Figure 24.

VCO Calibration

Bit DB9 provides the control bit for frequency calibration of the

VCO. Set this bit to 0 for normal operation. Setting this bit to 1

performs a VCO frequency and amplitude calibration. Bit DB9

is shown as VCO CAL in Figure 24.

Power-Up ADC

Bit DB8 provides the power-up bit for the ADC. Setting this bit

to 0 performs a power-down of the ADC. Setting this bit to 1

performs a power-up of the ADC. Bit DB8 is shown as PUP ADC

in Figure 24.

Power-Up Tx2 Output

Bit DB7 provides the power-up bit for the Tx2 output. Setting

this bit to 0 performs a power-down of the Tx2 output. Setting

this bit to 1 performs a power-up of the Tx2 output. Only one

transmitter output can be powered up at any time, either Tx1

(DB6) or Tx2 (DB7). Bit DB7 is shown as PUP Tx2 in Figure 24.

Power-Up Tx1 Output

Bit DB6 provides the power-up bit for the Tx1 output. Setting

this bit to 0 performs a power-down of the Tx1 output. Setting

this bit to 1 performs a power-up of the Tx1 output. Only one

Tx output can be powered up at any time, either Tx1 (DB6) or

Tx2 (DB7). Bit DB6 is shown as PUP Tx1 in Figure 24.

Power-Up LO Output

Bit DB5 provides the power-up bit for the LO output. Setting

this bit to 0 performs a power-down of the LO output. Setting

this bit to 1 performs a power-up of the LO output. Bit DB5 is

shown as PUP LO in Figure 24.