High Voltage
Charge Pump, PLL Synthesizer
ADF4113HV
FEATURES
GENERAL DESCRIPTION
High voltage charge pump (15 V)
2.7 V to 5.5 V power supply
200 MHz to 4.0 GHz frequency range
Pin compatible with ADF4110, ADF4111, ADF4112, ADF4113
ADF4106, and ADF4002 synthesizers
Two selectable charge pump currents
Digital lock detect
The ADF4113HV is an integer-N frequency synthesizer with a
high voltage charge pump (15 V). The synthesizer is designed
for use with voltage controlled oscillators (VCOs) that have
high tuning voltages (up to 15 V). Active loop filters are often
used to achieve high tuning voltages, but the ADF4113HV
charge pump can drive a high voltage VCO directly with a
passive-loop filter. The ADF4113HV can be used to implement
local oscillators in the upconversion and downconversion
sections of wireless receivers and transmitters. It consists of a
low noise digital phase frequency detector (PFD), a precision
high voltage charge pump, a programmable reference divider,
programmable A and B counters, and a dual-modulus prescaler
(P/P + 1).
Power-down mode
Loop filter design possible with ADIsimPLL™
APPLICATIONS
Applications using high voltage VCOs
IF/RF local oscillator (LO) generation in base stations
Point-to-point radio LO generation
Clock for analog-to-digital and digital-to-analog converters
Wireless LANs, PMR
A simple 3-wire interface controls all of the on-chip registers.
The devices operate with a power supply ranging from 2.7 V to
5.5 V and can be powered down when not in use.
Communications test equipment
FUNCTIONAL BLOCK DIAGRAM
AV
DV
V
R
SET
DD
DD
P
CPGND
REFERENCE
14-BIT
R COUNTER
REF
IN
PHASE
CHARGE
PUMP
CP
FREQUENCY
DETECTOR
14
R COUNTER
LATCH
CURRENT
SETTING
LOCK
DETECT
CLK
DATA
LE
24-BIT
INPUT REGISTER
FUNCTION
LATCH
22
A, B COUNTER
LATCH
SD
OUT
HIGH Z
FROM
FUNCTION
LATCH
19
AV
DD
MUX
MUXOUT
13
N = BP + A
SD
13-BIT
B COUNTER
OUT
LOAD
RF
RF
A
B
IN
PRESCALER
P/P + 1
M3 M2 M1
IN
LOAD
6-BIT
A COUNTER
ADF4113HV
6
CE
AGND
DGND
Figure 1.
Rev. 0
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