AD6426 Datasheet | Analog Devices

FEATURES plete Single Chip GSM Processor Channel Codec Subsystem including Channel Coder/Decoder Interleaver/De-interleaver Encryption/Decryption Control Processor Subsystem including 16-bit Control Processor (H8/300H) Parallel and Serial Display Interface Keypad Interface EEPROM Interface SIM-Interface Universal System Connector Interface Interface to AD6425 Control of Radio Subsystem Programmable backlight duty cycle Real Time Clock with Alarm Battery ID Chip Interface DSP Subsystem including 16-bit DSP with ROM coded firmware for Full rate Speech Encoding/Decoding (GSM 06.10) Enhanced Full Rate Speech Encoding/Decoding (GSM 06.60) Equalization with 16-state Viterbi (Soft Decision) DTMF and Call Progress Tone Generation Power Management of Mobile Radio Slow Clocking scheme for low Idle Mode current Ultra Low Power Design On-chip GSM Data Services up to 14.4 kbit/s JTAG Test Interface 2.4V to 3.3V Operating Voltage 144-Lead LQFP and 144-Lead PBGA packages APPLICATIONS GSM 900 / DCS1800 / PCS1900 Mobile Stations (MS) pliant to Phase 1 and Phase 2 specifications GENERAL DESCRIPTION The AD6426 Enhanced GSM Processor (EGSMP) is the central ponent of the highly integrated AD20msp425 GSM Chipset. Offering a low total chip count, low bill of materials cost and long talk and standby times, the chipset offers designers a straightforward route to a highly petitive product in the GSM/DCS1800 market. The EGSMP performs all the baseband functions of the Layer 1 processing of the GSM air interface. This includes all data encoding and decoding processes as well as timing and radio sub-system control functions. The EGSMP supports full rate and enhanced full rate speech traffic as well as a full range of data services including F14.4. UNIVERSAL SYSTEM CONN. INTERFACE CHANNEL EQUALIZER DISPLAY INTERFACE SIM INTERFACE RADIO INTERFACE SPEECH CODEC EEPROM INTERFACE ACCESSORY INTERFACE MEMORY INTERFACE CONTROL PROCESSOR KEYPAD / BACKLIGHT INTERFACE Figure 1. Functional...