Integrated Synthesizer and VCO

Data Sheet

ADF4360-7

Rev. B

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FEATURES

Output frequency range: 350 MHz to 1800 MHz

Divide-by-2 output

3.0 V to 3.6 V power supply

1.8 V logic compatibility

Integer-N synthesizer

Programmable dual-modulus prescaler 8/9, 16/17

Programmable output power level

3-wire serial interface

Analog and digital lock detect

Hardware and software power-down mode

APPLICATIONS

Wireless handsets (DECT, GSM, PCS, DCS, WCDMA)

Test equipment

Wireless LANs

CATV equipment

GENERAL DESCRIPTION

The ADF4360-7 is an integrated integer-N synthesizer and

voltage controlled oscillator (VCO). The ADF4360-7 center

frequency is set by external inductors. This allows a frequency

range of between 350 MHz to 1800 MHz. In addition, a divide-

by-2 option is available, whereby the user receives an RF output

of between 175 MHz and 900 MHz.

Control of all the on-chip registers is through a simple 3-wire

interface. The device operates with a power supply ranging from

3.0 V to 3.6 V and can be powered down when not in use.

FUNCTIONAL BLOCK DIAGRAM

MUXOUT

CP

CLK

DATA

LE

AGND

DGND

CPGND

CE

L1

L2

VCO

CORE

PHASE

COMPARATOR

MUTE

DIVSEL = 2

DIVSEL = 1

N = (BP + A)

LOAD

LOAD

CHARGE

PUMP

OUTPUT

STAGE

INTEGER

REGISTER

13-BIT B

COUNTER

14-BIT R

COUNTER

24-BIT

FUNCTION

LATCH

24-BIT

DATA REGISTER

5-BIT A

COUNTER

PRESCALER

P/P+1

MULTIPLEXER

LOCK

DETECT

÷2

ADF4360-7

Figure 1.