MAX2622 查看數據表（PDF） - Maxim Integrated
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MAX2622 Datasheet PDF : 6 Pages
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19-1528; Rev 1; 5/00
Monolithic EVFAOLLULAOTWIOSNDKAITTAMSAHNEUEATL 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
and frequency 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 50Ω.
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 50Ω Output 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
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For small orders, phone 1-800-835-8769.
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