| |
|
| Home | Feedback | Sitemap | Support | Contact Us | |
|
|
 |
 |  |
 |
 |
 |
|
Technology QS500 - GSM/GPRS QS1000 - GSM/GPRS/EDGE QS3000 - WCDMA+HEDGE QS3200 - TD-SCDMA+HEDGE QS2000 - FMC |
QS1000 This bulk CMOS single-chip Quad-band GSM/GPRS and EDGE RF transceiver offers world-class radio performance in a competitive radio front-end footprint with best-in-class receive current offering best-in-class handset standby and talk times. The QS1000 is a highly integrated solution for multi-band GSM/GPRS/EDGE applications. Manufactured in a standard CMOS process, the QS1000 offers the highest performance, lowest current available today, while meeting the standards and manufacturing requirements for the high-volume cellular handset market. The QS1000 meets the ever-increasing demand for longer talk-time and standby-time while extending the coverage of EDGE networks. Quorum's unique Ultra-Low-Power (ULP) receive architecture simultaneously enables high RF performance and best-in-class receive current consumption with less than 50% of the current required by typical competing solutions while achieving -110dBm sensitivity. This low current consumption results in 10% improved talk time in GSM mode and 20% in EDGE mode. It features a complete quad-band wireless receiver, transmitter, and a fast settling frequency synthesizer including the voltage controlled oscillator (VCO) and loop filter. The receiver in the QS1000 supports both Zero-IF (direct) and Near Zero-IF (100kHz) conversion implementations, which gives flexibility in the overall integration and choice of baseband. Driver support for major baseband is available with the QS1000. The transmitter is a self-contained linear EDGE solution with no ancillary off-chip RF filters or baluns required. This allows the use of any off-the-shelf PA to be used and again gives flexibility in choice of final design. The level of integration in the QS1000 results in a total radio front-end footprint of < 255mm2 using standard off-the-shelf components and has the lowest number of off-chip components. The linear architecture ensures easy manufacturability, with no EDGE-specific calibrations required, and extensive on-chip calibration ensures margin on key parameters in production. The QS1000 reduces the overall design complexity, system cost and form factor for multi-band EGDE enabled handsets. Ultimately the QS1000 allows OEMs and ODMs to differentiate their handset designs with longer talk time and improved EDGE coverage. General Features: • 2.7V to 3.3V Single Supply • Implemented in Bulk CMOS • Temperature Range: -40 to +85 ºC Architecture: • Direct Conversion Receiver using ULP technology using 63mA at -110dBm sensitivity Extends GSM and EDGE talk time by 10-20% • Linear Transmitter - Extensive on-chip calibration - Minimal baseband calibration, fast test time • Integrated Fast Settling Frequency Synthesizers • Analogue I-Q interface for GSM baseband • Simple 3-wire programming • Smallest footprint and lowest component count, requiring no TX filters, no baluns |