GENERAL DESCRIPTION

The AD6526 is the second device, after the AD6522, of the Analog Devices AD20msp430 series of SoftFone® GSM Baseband Processors. The AD6526 provides a competitive solution for GSM/GPRS terminal designs. It is designed to be fully integrated, easy to use, and compatible with GSM900, DCS1800 and PCS1900 handsets as well as direct PC data interface. No external SRAM is needed in most applications.

FEATURES

Complete Single Chip Programmable Digital

Baseband Processor divided into three main

subsystems:

Control Processor Subsystem including:

32-bit MCU ARM7TDMI® Control Processor

On-chip Zero-wait-state System SRAM

DSP Subsystem including

16-bit Fixed Point DSP Processor

Data and Program SRAM

Program Instruction Cache

Full Rate, Enhanced Full Rate and Half Rate

Speech Encoding/Decoding

Peripheral Subsystem including

Shared Peripheral Bus and Interface

Peripherals

Peripheral Functions

Parallel and Serial Display Interface

Keypad Interface

FLASH Memory Interface

1.8V and 3.0V, 64 kbps SIM Interface

Universal System Connector Interface

Baseband Converter Interface

Data Services Interface

Control of Radio Subsystem

Three independent programmable backlight outputs

Real Time Clock with Alarm

Programmable Power Management and Clock

Management

Supports 13 MHz and 26 MHz Input Clocks

Slow Clocking Scheme for Low Idle Mode Current

Power Down modes

On-chip support for GSM Data Services up to

14.4 kbits/sec, Class 12 GPRS, HSCSD

JTAG Interface for Test and In-Circuit Emulation

1.8V Typical Operating Voltage

Operating Voltage Range 1.7V - 1.9V

Independent I/O and Memory Voltages

160-Ball LFBGA (mini-BGA) package

APPLICATIONS

GSM850/900/DCS1800/PCS1900 Wireless Terminals

GSM Phase 2 & GPRS Compliant