ADI designs RF transceivers for GSM and GPRS wireless handsets

JasonYoo

ADI designs RF transceivers for GSM and GPRS wireless handsets [Copy link]

Analog Devices, Inc. has introduced a chip that can reduce the RF circuit of a cellular phone to 1.5 square centimeters. This new Othello-G RF chip suitable for GSM/GPRS communication standards can provide a full-function reference design, which reduces the number of components used by about 75% compared with the previous version of the design and provides a complete quad-band RF chip that is 30% smaller than all products on the market. The Othello-G RF chip supports full quad-band operation and actually integrates all the components required for a complete cellular phone RF design, such as voltage-controlled oscillators (VCOs) and related oscillation circuits, phase-locked loop filters, and power management circuits.

　　“Othello-G offers the industry’s smallest GSM RF solution available today, and the technology is recognized by the cellular industry as the best fit for GSM/GPRS applications,” said Christian Kermarrec, vice president of RF and Wireless Systems at Analog Devices. “As GSM is the world’s most geographically widespread cellular standard, finding ways to reduce development costs is more important than ever for the cellular handset industry. In established cellular areas, the cost of rapidly adding new wireless features needs to be reduced, while in emerging cellular market segments, it is important to ensure the availability of low-cost handsets to support continued growth. We believe our handset customers will realize significant savings in bill of materials (BOM) costs with the Othello-G RF chip.”

　　“In 1999, Analog Devices successfully introduced direct conversion (zero IF) RF transceivers to the market with the Othello family of products, and we have seen Analog Devices continue to achieve high levels of integration and significant package size reductions with its Othello RF architecture,” said Will Strauss, president of Forward Concepts.