MAX2752:2.4GHz Monolithic Voltage-Controlled Oscillators

SiGe Monolithic VCOs Replace Modules in 2.4GHz ISM Applications

The MAX2750/MAX2751/MAX2752 are self-contained voltage-controlled oscillators (VCOs) intended for use in the 2.4GHz to 2.5GHz ISM band. Each IC combines a fully integrated oscillator and output buffer in a miniature 8-pin ?MAX package. The inductor and varactor elements of the tank are integrated on-chip, greatly simplifying application of the part. The only required external components are a couple of supply bypass capacitors. The IC provides direct connection 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 50Ω) to provide higher output power and isolate the device from load impedance variations. The MAX2750/MAX2751/MAX2752 operate over a +2.7V to +5.5V supply voltage range. Internal regulation of the oscillator 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, the supply current is reduced to less than 1?A.

Key Features
  • Guaranteed Frequency Tuning Range
    • MAX2750: 2400MHz to 2500MHz (Zero IF)
    • MAX2751: 2120MHz to 2260MHz (240MHz to 280MHz IF)
    • MAX2752: 2025MHz to 2165MHz (335MHz to 375MHz IF)
  • On-Chip Tank Circuit
  • Internally Matched Output Buffer Amplifier
  • Low-Current Shutdown Mode
  • +2.7V to +5.5V Supply Voltage Range
  • Miniature 8-Pin ?MAX Package
MAX2750, MAX2751, MAX2752: Typical Operating Circuit
MAX2750, MAX2751, MAX2752: Typical Operating Circuit
  • 2.4GHz Bluetooth? ISM Proprietary Radio
  • 802.11 FHSS WLAN
  • 802.11b DSSS WLAN
  • HomeRF
titleDownload file
MAX2750-MAX2752?Data SheetMAX2750-MAX2752.pdf
Part NumberLO Driver OutputsPLL Driver OutputsRF Freq.
RF Freq.
(mm x mm)
minmaxminmaxSee Notes
MAX2750NoYes24002500-3-32.7 to 5.511.33.0 x 4.9?MAX/8$3.04 @1k
MAX2751212022609.7?MAX/8$1.24 @1k
MAX27522025202510?MAX/8$1.31 @1k
Design kits & evaluation modules
Related Products
  • MAX2605:45MHz to 650MHz, Integrated IF VCOs with Differential Output
  • MAX2608:45MHz to 650MHz, Integrated IF VCOs with Differential Output
  • MAX2609:45MHz to 650MHz, Integrated IF VCOs with Differential Output
  • MAX2606:45MHz to 650MHz, Integrated IF VCOs with Differential Output
  • MAX2607:45MHz to 650MHz, Integrated IF VCOs with Differential Output
  • MAX2624:Monolithic Voltage Controlled Oscillators
  • MAX2622:Monolithic Voltage Controlled Oscillators
  • MAX2623:Monolithic Voltage Controlled Oscillators
  • MAX2620:10MHz to 1050MHz Integrated RF Oscillator with Buffered Outputs
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX2752EUANo Longer AvailableMAX2752EUA+?MAX,;8 pin;15.6 mm?-40°C to +85°CNo
MAX2752EUA+Active?MAX,;8 pin;15.6 mm?-40°C to +85°CLead Free
MAX2752EUA+TActive?MAX,;8 pin;15.6 mm?-40°C to +85°CLead Free
MAX2752EUA-TNo Longer AvailableMAX2752EUA+T?MAX,;8 pin;15.6 mm?-40°C to +85°CNo
MAX2750-MAX2752.pdf MAX2752
RF Basics MAX7060
MAX2750-MAX2752.pdf MAX2752
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