Philips SA1921
The SA1921 is an integrated dual-band RF front-end that operates at both cellular (AMPS, DAMPS, and GSM) and satellite (1515–1600 MHz) frequencies, and is designed in a 13 GHz fT BiCMOS process—QUBiC1. The low-band is a combined low-noise amplifier (LNA) and mixer. The LNA has a 1.7 dB noise figure at 943 MHz with 18.3 dB of gain and an IIP3 of –5 dBm.| Part No. | SA1921 |
|---|---|
| Datasheet | SA1921 Download |
| Manufacturer |  Philips |
| Description | Satellite and cellular dual-band RF front-end |
| Buy | Stock & Price |
DESCRIPTION
The wide-dynamic range mixer has a 11 dB noise figure at 943 MHz with 7.2 dB of gain and an IIP3 of +5 dBm. The high-band contains a receiver front-end, and a high frequency transmit mixer intended for closed loop transmitters. One advantage of the high-band architecture is an image-rejection mixer with over 30 dB of image rejection; thus, eliminating external filter cost while saving board space. The system noise figure is 3.9 dB at 1550 MHz with a power gain of 22.2 dB and an IIP3 of –11.5 dB.FEATURES
● Low current consumption● Outstanding low- and high-band noise figure
● Excellent gain stability versus temperature and supply
● Image reject high-band mixer with over 30 dB of rejection
● Increased low-band LNA gain compression during analog
● LO input and output buffers
● On chip logic for network selection and power down
● Very small outline package
APPLICATIONS
transmission● 800 to 1000 MHz analog and digital receivers
● 1515 to 1600 MHz digital receivers
● Portable...
