GENERAL DESCRIPTION

The Analog Devices GSM Baseband Processing Chipset provides a competitive solution for GSM based Mobile Radio Systems. It is designed to be fully integrated, easy to use, and compat

ible with a wide range of product solutions. Examples are GSM900, DCS1800, PCS1900 handsets and PCMCIA data cards. The AD20msp415 is the higher integrated successor of the AD20msp410 chipset, which passed European GSM Type Approval in June, 1996.

The chipset consists of two highly integrated, sub-micron, low power CMOS components that perform the entire baseband signal processing of the GSM handset. The system architecture

is designed to be easily integrated into current designs and form the basis for next generation designs.

FEATURES

Complete Baseband Processing Chipset Performs:

Speech Coding/Decoding (GSM 06.XX)

Channel Coding/Decoding (GSM 05.03)

Equalization with 16-State Viterbi, Soft Decision

All ADC and DAC Interface Functions

Includes All Radio, Auxiliary and Voice Interfaces

Support for GSM Data Services

Embedded 16-Bit Microcontroller

Embedded 16-Bit DSP

Integrated SIM and Keyboard Interface

Interface to AD6430 GSM RF Chipset

Interface to EFR Coprocessor

JTAG Boundary Scan

Layer 1 Software Provided with Chipset

Software Compatible with AD20msp410

Full Phase 2 Protocol Stack Software Available

Full Reference Design Available for

Baseband Section and Radio Section

Ultralow Power Design

2.7 V to 3.3 V Operating Voltage

Intelligent Power Management Features

XXX mW Power Dissipation in Talk Mode

XX mW Power Dissipation in Standby Mode

Two TQFP Devices, Occupying Less than 7.5 cm2

APPLICATIONS

GSM/DCS1800/PCS1900 Mobile Radios