ADF9010 datasheet(9/29 Pages) AD

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ADF9010

Rev. 0 | Page 8 of 28

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

RxINIP

RxININ

RxVDD

LOOUTN

LOOUTP

AGND

DGND

REFIN

DVDD

AGND

RxBBIP

RxBBQP

RxBBQN

CEXT3

CEXT4

RSET

AVDD

TxBBIN

TxBBIP

TxBBQP

TxBBQN

RxBBIN

TOP VIEW

(Not to Scale)

ADF9010

NC = NO CONNECT

PIN 1

INDICATOR

Figure 3. Pin Configuration

Table 6. Pin Function Descriptions

Pin No.

Mnemonic

Description

1, 2

RxINIP, RxININ

Input/Complementary In-Phase Input to the Receive Filter Stage.

3, 46

RxVDD

Receiver Filter Power Supply. This voltage ranges from 3.15 V to 3.45 V. Decoupling capacitors to the

analog ground plane should be placed as close as possible to this pin. RxVDD must be the same

value as AVDD and DVDD.

4, 5

LOOUTN, LOOUTP

Buffered Local Oscillator Output. These outputs are used to provide the LO for the external RF

demodulator. These require an RF choke to AVDD and a dc bypass capacitor before connection to a

demodulator.

6, 12, 18, 24, 44

AGND

Analog Ground. This is the ground return path of analog circuitry.

DGND

Digital Ground.

REFIN

PLL Reference Input. This is a CMOS input with a nominal threshold of VDD/2 and a dc equivalent

input resistance of 100 kΩ (see Figure 13). This input can be driven from a TTL or CMOS crystal

oscillator, or it should be ac-coupled.

9, 37

DVDD

Digital Power Supply. This voltage ranges from 3.15 V to 3.45 V. Decoupling capacitors to the digital

ground plane should be placed as close as possible to this pin. DVDD must be the same value as AVDD.

This pin supplies the voltage to the charge pump. If the internal VCO is used, it should equal AVDD

and DVDD. If an external VCO is used, the voltage can be AVDD < VP < 5.5 V.

Charge Pump Output. When enabled, this pin provides ±ICP to the external loop filter, which in turn

drives the external VCO.

A capacitor connected to this pin is used to roll off noise from the VCO. It should be decoupled to

AGND with a value of 10 nF. The output voltage on this part is proportional to temperature. At

ambient temperature, the voltage is 2.0 V.

CEXT1

A capacitor connected to this pin is used to roll off noise from the VCO. It should be decoupled to

AGND with a value of 10 nF.

CEXT2

A capacitor connected to this pin is used to roll off noise from the VCO. It should be decoupled to

AGND with a value of 10 nF.

16, 21, 29

AVDD

Analog Power Supply. This voltage ranges from 3.15 V to 3.45 V. Decoupling capacitors to the

analog ground plane should be placed as close as possible to this pin. AVDD must be the same value

as DVDD.

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