GCT Semiconductor announces qualification of Bluetooth radio and baseband processor - Tests & Trials - Brief Article - Product Announcement

The privately held fabless semiconductor firm, GCT Semiconductor Inc., announced the qualification of its GDM1000 Bluetooth radio and GDM120l Bluetooth baseband processor in compliance with the Bluetooth specification version 1.1. (GCT is an associate member of the Bluetooth SIG.) Both devices are fabricated on standard CMOS and designed for use in high-performance cost-effective Bluetooth systems.

The GDM1000 is a fully integrated Bluetooth radio transceiver with a GFSK modem. The radio's design is based on GCT's proprietary direct conversion architecture, which offers high receiver linearity and exceptional blocking performance for robust operation in the crowded 2.4GHz ISM band.

The IC is fabricated with RF CMOS technology, which provides low-cost RF solutions to enable communications via Bluetooth or other wireless standards.

The GDM1000 is designed for Class II/III Bluetooth systems, using a minimum number of external components. It also supports Class I Bluetooth applications through the addition of an external power amplifier.

The GDM1000 provides all of the signal and logic interfaces to complement a Bluetooth baseband device, such as GCT's GDM1201 Baseband IC to build a complete low-cost, fully functional Bluetooth solution.

The GDM1201 is a baseband controller providing Bluetooth functionality for high data rate, short distance wireless communication in the 2.4GHz ISM band. Coupled with the GDM1000 and external flash memory, it provides a fully compliant Bluetooth solution for data and voice communication.

The on-chip 32-bit microcontroller supports the highest data rates currently seen in Bluetooth applications. The baseband architecture is based upon GCT's proprietary 64 MIPS PiCOII-RISC embedded processor for low power processing and includes sufficient SRAM (64KB) to support the on-chip Bluetooth software stack.

The programmable IC supports multiple-standard interfaces, such as BlueRF RXMODE2/3 uni-bi-directional, and JTAG serial interface, providing customers with outstanding interface flexibility. Additionally, the chip supports standard UART, USB with host and device combo functions and integrates a 16 bit Sigma-Delta PCM/CVSD audio codec.

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