Integrated Synthesizer and VCO
Data Sheet
ADF4360-2
FEATURES
GENERAL DESCRIPTION
Output frequency range: 1850 MHz to 2170 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
The ADF4360-2 is a fully integrated integer-N synthesizer
and voltage-controlled oscillator (VCO). The ADF4360-2 is
designed for a center frequency of 2000 MHz. In addition, a
divide-by-2 option is available, whereby the user gets an RF
output of between 925 MHz and 1085 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.
APPLICATIONS
Wireless handsets (DECT, GSM, PCS, DCS, WCDMA)
Test equipment
Wireless LANs
CATV equipment
FUNCTIONAL BLOCK DIAGRAM
AV
DV
CE
R
DD
DD
SET
ADF4360-2
MUXOUT
MULTIPLEXER
14-BIT R
COUNTER
REF
IN
LOCK
DETECT
MUTE
CLK
DATA
LE
24-BIT
FUNCTION
LATCH
24-BIT
DATA REGISTER
CHARGE
PUMP
CP
PHASE
COMPARATOR
V
V
VCO
TUNE
C
C
C
N
INTEGER
REGISTER
RF
RF
A
B
OUT
OUT
VCO
CORE
OUTPUT
STAGE
13-BIT B
COUNTER
LOAD
LOAD
5-BIT A
COUNTER
PRESCALER
P/P+1
N = (BP + A)
÷2
DIVSEL = 1
DIVSEL = 2
CPGND
AGND
DGND
Figure 1.
Rev. C
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