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MAX2750AUA+ Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX2750AUA+ Datasheet(HTML) 1 Page - Maxim Integrated Products |
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1 / 6 page  General Description The MAX2750AUA is a self-contained voltage-controlled oscillator (VCO) intended for use over the 2370MHz to 2470MHz frequency range. The IC combines a fully integrated oscillator and output buffer in a miniature 8-pin µMAX® package. The inductor and varactor elements of the tank are inte- grated on-chip, greatly simplifying application of the part. The only required external components are a couple of supply bypass capacitors. The IC provides direct connec- tion 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 adjust- ed to provide guaranteed limits. The output signal is buffered by an amplifier stage (internally matched to 50 Ω) to provide higher output power and isolate the device from load impedance variations. The MAX2750AUA operates over a +2.7V to +5.5V sup- ply voltage range. Internal regulation of the oscillator sup- ply voltage eliminates the need for an external LDO regulator for the VCO. The IC also provides a digitally con- trolled shutdown mode to permit implementation of sophisticated power-supply management. In shutdown, the supply current is reduced to less than 2µA. ________________________Applications Automotive 2.4GHz ISM Band Features ♦ Guaranteed Frequency Tuning Range: 2370MHz to 2470MHz ♦ On-Chip Tank Circuit ♦ Internally Matched Output Buffer Amplifier ♦ Low-Current Shutdown Mode ♦ +2.7V to +5.5V Supply Voltage Range ♦ Miniature 8-Pin µMAX Package ♦ -40°C to +125°C Temperature Range 2.4GHz Monolithic Voltage-Controlled Oscillator for Automotive ________________________________________________________________ Maxim Integrated Products 1 OSCILLATOR CORE BIAS TUNE TUNE BYP SHDN GND OUT VCC1 VCC VCC2 GND SHDN OUT TO MIXER/ SYNTHESIZER MAX2750AUA Typical Operating Circuit 19-0831; Rev 0; 6/07 Ordering Information For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. PART TEMP RANGE PIN- PACKAGE PKG CODE MAX2750AUA+ -40°C to +125°C 8 μMAX U8-1 Pin Configuration appears at end of data sheet. + Denotes a lead-free package. µMAX is a registered trademark of Maxim Integrated Products, Inc. |
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