Designed, Built, Tested
Board pictured here has been fully assembled and tested.


Design Resources

Design & Integration Files

  • Schematic of MAX2323 Evaluation Kit
  • Bill of Materials Pt 1
  • Bill of Materials Pt 2
Download Design Files 126.02 K


The MAX2323 was developed with a single, digital, IF output port. Having a common 183MHz IF, both digital mixers' gain is still adequate for good receiver sensitivity, and their IP2 performance and other related parameters offer sufficient margin for meeting 1/2 IF and additional interferers in a CDMA handset. In this application, the MAX2323 was tested for and successfully applied to a CDMA dual-band dual-mode handset front-end design. The circuit modification requirement for this project was to retune the FM analog and the cellular/PCS digital mixers to 183MHz IF.

The MAX2323 low-noise amplifier (LNA) plus mixer is designed for dual-band CDMA cellular-phone handsets, but it can also be used in dual-band TDMA, GSM, EDGE, or WCDMA applications. It differs from its predecessor (the MAX2320) by adding a third "mid-gain" state for the cellular-band LNA that improves switchover hysteresis margin. It also comes in a smaller package (28-QFN) and offers increased third-order input intercept.

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Parts Used

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