MAX2622/MAX2623/MAX2624 19-1528 Rev 1 5/00 Monolithic Voltage-Controlled Oscillators General Description Features The MAX2622/MAX2623/MAX2624 self-contained volt- Fully Monolithic age-controlled oscillators (VCOs) combine an integrat- Guaranteed Performance ed oscillator and output buffer in a miniature 8-pin MAX package. On-Chip 50 Output Match The inductor and varactor elements of the tank circuits Wide Choice of Frequencies are integrated on-chip, greatly simplifying application of 855MHz to 881MHz (MAX2622) the part. In addition, the center frequency of oscillation 885MHz to 950MHz (MAX2623) and frequency span are factory preset to provide a 947MHz to 998MHz (MAX2624) guaranteed frequency range versus control voltage. An external tuning voltage controls the oscillation frequency. +2.7V to +5.5V Single-Supply Operation The output signals are buffered by an amplifier stage Low-Current Shutdown Mode matched on-chip to 50 . Smaller than Modules (8-Pin MAX Package) 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 0.1A. Ordering Information Applications 866MHz to 868MHz European ISM Band PART TEMP. RANGE PIN-PACKAGE (MAX2622) MAX2622EUA -40C to +85C 8 MAX MAX2623EUA -40C to +85C 8 MAX DECT 1/2 Frequency LO (MAX2623) MAX2624EUA -40C to +85C 8 MAX 902MHz to 928MHz ISM Band, 10.7MHz IF (MAX2623) 902MHz to 928MHz ISM Band, 45MHz to 70MHz IF (MAX2624) Pin Configuration appears at end of data sheet. Typical Operating Circuit N.C. GND TUNE TUNE OSCILLATOR OUT OUT TO MIXER/ CORE SYNTHESIZER GND 220pF V CC MAX2622 MAX2623 V CC MAX2624 V CC SHDN SHDN BIAS 220pF 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. EVALUATION KIT MANUAL FOLLOWS DATA SHEETMonolithic Voltage-Controlled Oscillators ABSOLUTE MAXIMUM RATINGS V to GND..............................................................-0.3V to +6V Operating Temperature Range ...........................-40C to +85C CC TUNE, SHDN to GND .................................-0.3V to (V + 0.3V) Junction Temperature......................................................+150C CC OUT to GND ...............................................-0.3V to (V + 0.6V) Storage Temperature Range .............................-65C to +150C CC Continuous Power Dissipation (T = +70C) Lead Temperature (soldering, 10s) .................................+300C A 8-Pin MAX (derate 5.7mW/C above T = +70C).....457mW A 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. DC ELECTRICAL CHARACTERISTICS (Typical Operating Circuit, V = +2.7V to +5.5V, V = 1.4V, V = 2V, OUT = unconnected, T = -40C to +85C, unless CC TUNE SHDN A otherwise noted. Typical values are at V = +3V, T = +25C.) (Note 1) CC A PARAMETER CONDITIONS MIN TYP MAX UNITS Supply Voltage 2.7 5.5 V Supply Current 811.5 mA Shutdown Supply Current V 0.6V 0.1 5 A SHDN SHDN Input Voltage Low 0.6 V 2.0 V SHDN Input Voltage High SHDN Input Current Low V 0.6V -0.5 0.5 A SHDN SHDN Input Current High V 2.0V -0.5 0.5 A SHDN TUNE Input Current 0.4V V 2.4V 0.01 nA TUNE AC ELECTRICAL CHARACTERISTICS (Typical Operating Circuit, V = +2.7V to +5.5V, V = 0.4V to 2.4V, V = 2V, T = +25C, unless otherwise noted. Typical CC TUNE SHDN A values measured at V = +3V.) (Note 1) CC PARAMETER CONDITIONS MIN TYP MAX UNITS MAX2622, V = 0.4V to 2.4V, T = -40C to +85C 855 881 TUNE A Oscillator Frequency Range MAX2623, V = 0.4V to 2.4V, T = -20C to +75C 885 950 MHz TUNE A MAX2624, V = 0.4V to 2.4V, T = -40C to +85C 947 998 TUNE A f = 100kHz -101 OFFSET Phase Noise dBc/Hz f = 1MHz -119 OFFSET Noise Floor -151 dBm/Hz Maximum Tuning Gain (Note 2) V = 0.4V to 2.4V 75 100 MHz/V TUNE Output Power V = 0.4V (Note 3) -3 dBm TUNE Return Loss (Note 3) -10 dB Harmonics -27 dBc Load Pulling VSWR = 2:1, all phases 0.75 MHz p-p Supply Pushing V stepped from 2.8V to 3.3V 280 kHz/V CC Note 1: Specifications are production tested at T = +25C. Limits over temperature are guaranteed by design and characterization. A Note 2: Tuning gain is measured at V = 0.4V with a 0.2V step to 0.6V. At low V , tuning gain is highest. TUNE TUNE Note 3: Measurements taken on MAX262 EV kit. 2 MAX2622/MAX2623/MAX2624