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Maxim Integrated Semiconductor Electronic Components Datasheet


MAX-2623

(MAX2622 - MAX2624) Monolithic Voltage-Controlled Oscillators


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MAX-2623 pdf
19-1528; Rev 1; 5/00
MonolithicEVFAOLLULAOTWIOSNDKAITTAMSAHNEUEATL Voltage-Controlled Oscillators
General Description
The MAX2622/MAX2623/MAX2624 self-contained volt-
age-controlled oscillators (VCOs) combine an integrat-
ed oscillator and output buffer in a miniature 8-pin
µMAX package.
The inductor and varactor elements of the tank circuits
are integrated on-chip, greatly simplifying application of
the part. In addition, the center frequency of oscillation
www.DataSheeatn4Ud.cforemquency span are factory preset to provide a
guaranteed frequency range versus control voltage. An
external tuning voltage controls the oscillation frequency.
The output signals are buffered by an amplifier stage
matched on-chip to 50.
The MAX2622/MAX2623/MAX2624 operate from a
+2.7V to +5.5V supply voltage and require only 8mA of
supply current. In shutdown mode, the supply current is
reduced to 0.1µA.
Applications
866MHz to 868MHz European ISM Band
(MAX2622)
DECT 1/2 Frequency LO (MAX2623)
902MHz to 928MHz ISM Band, ±10.7MHz IF
(MAX2623)
902MHz to 928MHz ISM Band, 45MHz to
70MHz IF (MAX2624)
Features
o Fully Monolithic
o Guaranteed Performance
o On-Chip 50Output Match
o Wide Choice of Frequencies
855MHz to 881MHz (MAX2622)
885MHz to 950MHz (MAX2623)
947MHz to 998MHz (MAX2624)
o +2.7V to +5.5V Single-Supply Operation
o Low-Current Shutdown Mode
o Smaller than Modules (8-Pin µMAX Package)
PART
MAX2622EUA
MAX2623EUA
MAX2624EUA
Ordering Information
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
8 µMAX
8 µMAX
8 µMAX
Pin Configuration appears at end of data sheet.
Typical Operating Circuit
TUNE
SHDN
N.C.
TUNE
OSCILLATOR
CORE
GND
MAX2622
MAX2623
SHDN MAX2624
BIAS
GND
OUT
220pF
VCC
VCC
220pF
OUT TO MIXER/
SYNTHESIZER
VCC
________________________________________________________________ Maxim Integrated Products 1
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.



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MAX-2623 pdf
Monolithic Voltage-Controlled Oscillators
ABSOLUTE MAXIMUM RATINGS
VCC to GND ..............................................................-0.3V to +6V
TUNE, SHDN to GND .................................-0.3V to (VCC + 0.3V)
OUT to GND ...............................................-0.3V to (VCC + 0.6V)
Continuous Power Dissipation (TA = +70°C)
8-Pin µMAX (derate 5.7mW/°C above TA = +70°C).....457mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
www.DataSheeatb4sUol.uctoemmaximum rating conditions for extended periods may affect device reliability.
DC ELECTRICAL CHARACTERISTICS
(Typical Operating Circuit, VCC = +2.7V to +5.5V, VTUNE = 1.4V, V SHDN = 2V, OUT = unconnected, TA = -40°C to +85°C, unless
otherwise noted. Typical values are at VCC = +3V, TA = +25°C.) (Note 1)
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Supply Voltage
2.7 5.5 V
Supply Current
8 11.5 mA
Shutdown Supply Current
SHDN Input Voltage Low
V SHDN 0.6V
0.1 5 µA
0.6 V
SHDN Input Voltage High
2.0 V
SHDN Input Current Low
SHDN Input Current High
V SHDN 0.6V
V SHDN 2.0V
-0.5 0.5 µA
-0.5 0.5 µA
TUNE Input Current
0.4V VTUNE 2.4V
0.01 nA
AC ELECTRICAL CHARACTERISTICS
(Typical Operating Circuit, VCC = +2.7V to +5.5V, VTUNE = 0.4V to 2.4V, V SHDN = 2V, TA = +25°C, unless otherwise noted. Typical
values measured at VCC = +3V.) (Note 1)
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Oscillator Frequency Range
Phase Noise
Noise Floor
MAX2622, VTUNE = 0.4V to 2.4V, TA = -40°C to +85°C
MAX2623, VTUNE = 0.4V to 2.4V, TA = -20°C to +75°C
MAX2624, VTUNE = 0.4V to 2.4V, TA = -40°C to +85°C
fOFFSET = 100kHz
fOFFSET = 1MHz
855 881
885 950 MHz
947 998
-101
-119
dBc/Hz
-151
dBm/Hz
Maximum Tuning Gain (Note 2)
Output Power
Return Loss (Note 3)
VTUNE = 0.4V to 2.4V
VTUNE = 0.4V (Note 3)
75 100 MHz/V
-3 dBm
-10 dB
Harmonics
-27 dBc
Load Pulling
Supply Pushing
VSWR = 2:1, all phases
VCC stepped from 2.8V to 3.3V
0.75
280
MHzp-p
kHz/V
Note 1: Specifications are production tested at TA = +25°C. Limits over temperature are guaranteed by design and characterization.
Note 2: Tuning gain is measured at VTUNE = 0.4V with a 0.2V step to 0.6V. At low VTUNE, tuning gain is highest.
Note 3: Measurements taken on MAX262_ EV kit.
2 _______________________________________________________________________________________



Part Number MAX-2623
Description (MAX2622 - MAX2624) Monolithic Voltage-Controlled Oscillators
Maker Maxim Integrated Products - Maxim Integrated Products
Total Page 6 Pages
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