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M4640-19 Datasheet

Part NameDescriptionManufacturer
M4640-19 Baseband Processor for GSM Applications Conexant
Conexant Systems Conexant
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Conexant’s M46 Baseband Processor (BP) is a highly integrated, dual core processor optimized for use in Global System for Mobile Communications (GSM) cellular handset applications. With its companion devices, the 20420 Integrated Analog (IA) device (refer to Conexant document number 100773) and the 20436 Power Management Integrated Circuit (PMIC) device (refer to Conexant document number 100772), the BP forms Conexant’s baseband device set for GSM single band or multi-band handsets.

Features
• Execution of GSM protocol stack software (Layers 1, 2, and 3)
• Execution of MMI software
• Interface to handset MMI peripherals (e.g., keypad, LCD, buzzer, etc.)
• Interface to data terminals
• Functional interface to a Subscriber Identity Module (SIM)
• Interface to handset memory components (Flash, SRAM, etc.)
• Integrated Real-Time Clock (RTC)
• Supports full rate and enhanced full rate speech coders
• Encryption/decryption
• Automatic Frequency Control (AFC)
• Automatic Gain Control (AGC)
• Digital Audio Interface (DAI)
• Interfaces to Conexant IA and PMIC devices
• Low power operation (2.7 V to 3.6 V)
• Optional voice features: voice recognition, voice prompts, conversation record, and voice memo
• Optional 14.4 kbps data/fax support

Applications
• GSM 900/1800/1900 handsets or modules

 

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