●GENERAL DESCRIPTION
●TheAD6426 Enhanced GSM Processor (EGSMP) is the central component 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 competitive
●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.
●FEATURES
●Complete 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) Compliant to Phase 1 and Phase 2 specifications
