Integrated Synthesizer and VCO

Data Sheet

ADF4360-1

Rev. C

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FEATURES

Output frequency range: 2050 MHz to 2450 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, 32/33

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 ADF4360-1 is a fully integrated integer-N synthesizer and

voltage-controlled oscillator (VCO). The ADF4360-1 is

designed for a center frequency of 2250 MHz. In addition, there

is a divide-by-2 option available, whereby the user gets an RF

output of between 1025 MHz and 1225 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

CE

AGND

DGND

CPGND

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

ADF4360-1

Figure 1.