RF Micro Devices RF2449
The RF2449 is a receiver front-end designed for the receive section of dual-mode CDMA/FM cellular applications. It is designed to amplify and downconvert RF signals, while providing 30dB of stepped gain control range. The LNA IIP3 can be digitally controlled between two levels to reduce current draw in CDMA standby and other conditions where high IIP3 is not required.| Part No. | RF2449 |
|---|---|
| Datasheet | RF2449 Download |
| Manufacturer |  RF Micro Devices |
| Description | CDMA/FM LOW NOISE AMPLIFIER/MIXER 900MHZ DOWNCONVERTER |
| Buy | Stock & Price |
APPLICATIONS
● CDMA/FM Cellular Systems● Supports Dual-Mode CDMA/AMPS
● Supports Dual-Mode CDMA/TACS RF2449 CDMA/FM LOW NOISE AMPLIFIER/MIXER 900MHZ DOWNCONVERTER
● General Purpose Downconverter
● Commercial and Consumer Systems
● Portable Battery-Powered Equipment Product
DESCRIPTION
FEATURES
include digital control of LNA gain, mixer gain, LNA IIP3, and power down mode. Another feature of the chip is adjustable IIP3 of the LNA and mixer using an offchip current setting resistor. Noise Figure, IP3, and other specs are designed to be compatible with the IS-98 specification for CDMA cellular communications. The IC is manufactured on an advanced Silicon Bipolar process and packaged in an SSOP-24. Optimum Technology Matching® Applied Si BJT GaAs HBT SiGe HBT GaAs MESFET Si CMOS 24 LO IN 23 GND2 22 GND2 21 VCC2 20 IF2+ 19 IF218 BYPASS 17 IF116 IF1+ 15 GND3A 14 MIX IN 13 GND3B 0.157 0.150 0.0098 0.0040 1 0.344 0.337 0.012 0.008 0.025 0.0688 0.0532 0.2440 0.2284 8°MAX 0°MIN 8 0.0098 0.0075...
