Product Summary

The IFR3300 is a fully integrated IF-to-baseband processorper forming all CDMA and GPS receive (Rx) signal processing functions required between the IF output from QCT’s IFR3300 Rx front-end device and at baseband with Mobile Station Modem(MSM) devices for IS-95 CDMA-only and ARIB-53 (Japan) J-CDMA applications. The IFR3300 device leverages previous IFR3300 circuit designs, including GPS, and provides significant advantages in size andcost for single-mode CDMA or single-mode plus gpsOne - enabled handsets.

Parametrics

IFR3300 absolute maximum rating: Supply voltage: 2.7 V to 3.0 V.

Features

IFR3300 features: (1)Dual-mode operation includes CDMA and GPS; (2)Rx digital baseband interface compatible with MSM3100, MSM3300, MSM5105, MSM5100, and MSM5500 devices; (3)IF LO synthesizer can be shared between IFR3500 and RFT3500 devices for easier frequency planning and reduced cost; (4)Rx power control through 90 dB dynamic range VGA; (5)IF mixer for down-converting IF to analog baseband for CDMA andGPS.

Diagrams

IFR3300 block diagram