MAX2750AUA 2.4GHz Monolithic Voltage-Controlled Oscillator General Description Features The MAX2750AUA is a self-contained voltage-controlled Guaranteed Frequency Tuning Range: oscillator (VCO) intended for use over the 2370MHz 2370MHz to 2470MHz to 2470MHz frequency range. The IC combines a fully On-Chip Tank Circuit integrated oscillator and output buffer in a miniature 8-pin Internally Matched Output Buffer Amplifier MAX package. Low-Current Shutdown Mode The inductor and varactor elements of the tank are inte- +2.7V to +5.5V Supply Voltage Range grated on-chip, greatly simplifying application of the part. The only required external components are a couple of Miniature 8-Pin MAX Package supply bypass capacitors. The IC provides direct con- -40C to +125C Temperature Range nection to the VCO tuning voltage input and the VCO buffer output. The tuning voltage input range is +0.4V to +2.4V, and the oscillator frequency tuning range is factory adjusted to provide guaranteed limits. The output signal is buffered by an amplifier stage (internally matched to 50) Ordering Information to provide higher output power and isolate the device from PIN- load impedance variations. PART TEMP RANGE PACKAGE The MAX2750AUA operates over a +2.7V to +5.5V sup- MAX2750AUA+ -40C to +125C 8 MAX ply voltage range. Internal regulation of the oscillator +Denotes a lead(Pb)-free/RoHS-compliant package. supply voltage eliminates the need for an external LDO regulator for the VCO. The IC also provides a digitally controlled shutdown mode to permit implementation of sophisticated power-supply management. In shutdown, Pin Configuration appears at end of data sheet. the supply current is reduced to less than 2A. MAX is a registered trademark of Maxim Integrated Products, Inc. Applications 2.4GHz ISM Band Typical Operating Circuit BYP GND TUNE OSCILLATOR OUT OUT TO MIXER/ TUNE CORE SYNTHESIZER GND V CC1 MAX2750AUA V CC V CC2 SHDN SHDN BIAS 19-0831 Rev 1 4/15MAX2750AUA 2.4GHz Monolithic Voltage-Controlled Oscillator Absolute Maximum Ratings V to GND..............................................................-0.3V to +6V Operating Temperature Range .........................-40C to +125C CC TUNE, SHDN, BYP, OUT to GND...............-0.3V to (V + 0.3V) Junction Temperature......................................................+150C CC Continuous Power Dissipation (T = +70C) Storage Temperature Range .............................-65C to +150C A 8-Pin MAX (derate 5.7mW/C above T = +70C)....457mW Lead Temperature (soldering, 10s) .................................+300C 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 (V = +2.7V to +5.5V, V = +0.4V to +2.4V, V +2V, OUT = connected to 50 load, T = -40C to +125C. Typical values CC TUNE SHDN A are at V = +3.0V, T = +25C, unless otherwise noted.) (Note 1) CC A PARAMETER CONDITIONS MIN TYP MAX UNITS Supply Voltage 2.7 5.5 V o T = +25 C 11.3 14.4 A Supply Current mA T = -40C to +125C 16.0 21.0 A Shutdown Supply Current 2 A SHDN Input Voltage Low 0.6 V 2.0 V SHDN Input Voltage High SHDN Input Current Low V 0.6V -2 +2 A SHDN V 2.0V -2 +2 A SHDN Input Current High SHDN TUNE Input Current 0.4 V 2.4V 20 nA TUNE AC Electrical Characteristics (MAX2750AUA EV kit, V = +2.7V to +5.5V, V = +0.4V to +2.4V, V +2V, OUT = connected to 50 load, T = +25C. CC TUNE SHDN A Typical values are at V = +3.0V, unless otherwise noted.) (Note 1) CC PARAMETER CONDITIONS MIN TYP MAX UNITS Oscillator Guaranteed Frequency V = +0.4V to +2.4V, T = -40C to +125C TUNE A 2370 2470 MHz Limits (Note1) f = 4MHz -125 dBc/Hz OFFSET Phase Noise Noise floor -151 dBm/Hz f = 2370MHz, +3V 140 OSC Tuning Gain (Note 2) MHz/V f = 2470MHz, +3V 90 OSC Output Power -3 dBm Return Loss 12 dB Harmonics -30 dBc Load Pulling VSWR = 2:1, all phases 4 MHz P-P Supply Pushing V stepped: +3.3V to +2.8V 1.3 MHz/V CC Oscillator Turn-On Time Exiting shutdown (Note 3) 8 s Oscillator Turn-Off Time Entering shutdown (Note 4) 5 s Note 1: Minimum and maximum limits are guaranteed by production test at T = +25C and T = +125C. Minimum and maximum A A limits are guaranteed by design and characterization at T = -40C. A Note 2: Tuning gain is measured at the oscillators guaranteed frequency limits. Note 3: Turn-on time to within 3dB of final output power Note 4: Turn-off time to output power of -10dBm. Maxim Integrated 2 www.maximintegrated.com