Description

The Skyworks CX805-30 Baseband Processors (BPs) are highly integrated, dual core processors optimized for use in Global System for Mobile communications (GSM) and General Packet Radio Service (GPRS) cellular handset applications. The CX805-30 is the baseband portion of the Skyworks GSM/GPRS System Solution.

Features

• 0.25µ CMOS process technology

• ARM7 TDMI core

• Skyworks DSP core with all memory on-chip

• GPRS class 10 and circuit-switched data (14.4 kbps) services

• Half-rate, full-rate, and enhanced full-rate speech coders

• Voice features such as voice recognition, conversation record, and voice memo

• Hardware accelerator for GPRS encryption algorithms (GEA 1 and 2)

• Integrated Real-Time Clock (RTC)

• Interface to handset MMI peripherals such as keypad, liquid crystal display (LCD), and annunciator

• Interfaces to Skyworks IA and PMIC devices

• Interface to Subscriber Identity Module (SIM)

• Addresses up to 16 MB of external memory (flash or SRAM)

• Application Interfaces:

— Serial/RS-232

— Infra-red Data Adapter (IrDA)

• Low power operation. 3 V I/Os and an on-chip supplied 2.5 V core

• Eight Chip Select (CS) signals for external memory

• 16-bit data bus, 24-bit address bus

Applications

• GSM handsets and modules (850/900/1800/1900 MHz)

• GPRS handsets and modules (850/900/1800/1900 MHz)

• Bluetooth®-enabled wireless headset modules