The RF3404 is a fully-functional, integrated dual-band downconverter module for tri-mode CDMA applications. The module, which uses SiGe technology, features two complete RF downconverters with low noise amplifiers, RF SAW filters, TX LO buffers, and RF matching for PCS and cellular band frequencies. Additionally, a divide-by-2 prescaler is integrated to allow the use of a single-band VCO. Multiple gain control options are available to conserve current and meet IS-98B specifications. The mixer design allows for a common IF filter for CDMA cellular and PCS operation, and a second output for the FM output. IF matching is external to the module.
The RF3404 is a dual-band 900/1900 MHz downconverter module designed for trimode CDMA applications in cellular and PCS handsets. It utilizes SiGe technology and integrates two complete RF downconverters with low noise amplifiers (LNA), RF SAW filters, TX LO buffers, and RF matching for both PCS and cellular band frequencies. An integrated divide-by-2 prescaler allows the use of a single-band VCO. The module offers multiple gain control options to conserve current and meet IS-98B specifications, with a mixer design that supports a common IF filter for both cellular and PCS operation.
| Technology | SiGe |
|---|---|
| Package Style | 8mmx8mm Module |
| Supply Voltage | 2.7 to 3.0 V |
| Operating Temperature | -30 to +85 °C |
| RF Frequency Range (Cellular) | 869 to 894 MHz |
| RF Frequency Range (PCS) | 1930 to 1990 MHz |
| IF Frequency Range | 0.1 to 400 MHz |
| LNA Gain (Typical) | 25.0 dB |
| Noise Figure (Typical) | 2.5 dB |
| Logic High Level | 1.8 V |
The RF3404 is designed for CDMA Cellular/PCS Handsets.
Yes, the module features integrated RF SAW filters.
The supply voltage ranges from 2.7V to 3.0V.
It features stepped LNA/Mixer gain control with adjustable LNA bias current and IIP3.