Details, datasheet, quote on part number: MAX2623
CategoryCommunication => Freq/Signal Converters/Generators
DescriptionFully Monolithic 900mhz Sige Vco in 8-pin Umax
CompanyMaxim Integrated Products
DatasheetDownload MAX2623 datasheet
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Features, Applications

o Fully Monolithic o Guaranteed Performance o On-Chip 50 Output Match o Wide Choice of Frequencies to +5.5V Single-Supply Operation o Low-Current Shutdown Mode o Smaller than Modules (8-Pin MAX Package)

The MAX2622/MAX2623/MAX2624 self-contained voltage-controlled oscillators (VCOs) combine an integrated oscillator and output buffer in a miniature 8-pin MAX 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 50. The MAX2622/MAX2623/MAX2624 operate from to +5.5V supply voltage and require only 8mA of supply current. In shutdown mode, the supply current is reduced to 0.1A.


to 868MHz European ISM Band (MAX2622) DECT 1/2 Frequency to 928MHz ISM Band, to 928MHz ISM Band, IF (MAX2624)


For free samples and the latest literature, visit or phone 1-800-998-8800. For small orders, phone 1-800-835-8769.

VCC to +6V TUNE, SHDN GND.................................-0.3V to (VCC + 0.3V) OUT GND...............................................-0.3V to (VCC + 0.6V) Continuous Power Dissipation (TA +70C) 8-Pin MAX (derate 5.7mW/C above = +70C).....457mW Operating Temperature to +85C Junction Temperature......................................................+150C Storage Temperature to +150C Lead Temperature (soldering, 10s).................................+300C

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 absolute maximum rating conditions for extended periods may affect device reliability.

(Typical Operating Circuit, VCC to +5.5V, VTUNE 1.4V, V SHDN = 2V, OUT = unconnected, to +85C, unless otherwise noted. Typical values are at VCC = +25C.) (Note 1) PARAMETER Supply Voltage Supply Current Shutdown Supply Current SHDN Input Voltage Low SHDN Input Voltage High SHDN Input Current Low SHDN Input Current High TUNE Input Current V SHDN 0.6V V SHDN 2.0V 0.4V VTUNE 2.4V V SHDN 0.6V CONDITIONS MIN 8 0.1 TYP MAX UNITS A nA

(Typical Operating Circuit, VCC to +5.5V, VTUNE 2.4V, V SHDN = +25C, unless otherwise noted. Typical values measured at VCC = +3V.) (Note 1) PARAMETER Oscillator Frequency Range CONDITIONS MAX2622, VTUNE +85C MAX2623, VTUNE +75C MAX2624, VTUNE to +85C Phase Noise Floor Maximum Tuning Gain (Note 2) Output Power Return Loss (Note 3) Harmonics Load Pulling Supply Pushing VSWR = 2:1, all phases VCC stepped from to 3.3V VTUNE to 2.4V VTUNE = 0.4V (Note 3) fOFFSET = 100kHz fOFFSET = 1MHz MIN TYP MAX 950 998 dBc/Hz dBm/Hz MHz/V dBm dB dBc MHzp-p kHz/V MHz UNITS

Note 1: Specifications are production tested = +25C. Limits over temperature are guaranteed by design and characterization. Note 2: Tuning gain is measured at VTUNE = 0.4V with a 0.2V step 0.6V. At low VTUNE, tuning gain is highest. Note 3: Measurements taken MAX262_ EV kit.

(VCC = +3.0V, VTUNE 2.4V, V SHDN = +25C, unless otherwise noted.)


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