NXP单片GSM/GPRS多媒体解决方案

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                    　　NXP公司的AeroFONE单片GSM/GPRS低成本多媒体解决方案PNX4903能以超低成本实现带彩色屏的音乐手机.这种单芯片解决方案集成了模拟和数字基带,RF收发器,功率管理以及音频电路.唯一的外接元件是功率放大器和存储器.完整的双频段GSM/GPRS调制解调器可以采用低成本的4层PCB做成,仅需要49个元件.本文介绍了PNX4903的主要性能以及多媒体手机的方框图.

　　AeroFONE?single-chip?GSM/GPRS?low-cost?multimedia?solution
The?NXP?AeroFONE?PNX4903?enables?a?music?phone?with?color?screen?in?the?ultra-low-cost?market?segment.?By?integrating?the?analog?and?digital?basebands,?RF?transceiver,?power?management,?and?audio?circuitry?in?a?single?monolithic?IC,?the?PNX4903?solution?delivers?the?smallest?bill?of?materials?and?PCB?footprint,?along?with?the?lowest?manufacturing?and?test?costs.

　　The?only?external?ICs?needed?are?a?power?amplifier?and?memory.?A?complete,?dual-band?GSM/GPRS?modem?can?be?realized?with?just?49?external?components?on?a?low-cost?four-layer?PCB.?Traditional?multi-chip?handset?designs?require?three?times?the?number?of?external?components?on?a?more?complex?PCB.

　　The?hardware?reference?design?is?accompanied?by?a?flexible,?pre-integrated?and?validated?software?complement?that?reduces?R&D?expense?and?speeds?time-to-market.

　　主要特性:?

　　Complete?GSM/GPRS?solution?in?a?single?monolithic?IC
　　GSM?Phase?2+?compliant?
　　Low?power,?high-performance?0.13-m?CMOS?process
　　Industry-leading?ARM926-EJS?MCU?core
　　High-performance?DSP?core
　　SAIC?support?for?increased?network?capacity
　　Integrates?all?the?SRAM?for?a?voice-centric?phone
　　Completely?integrated?RF?transceiver?
　　Dual-band?Rx?and?Tx?(850?or?900/1800?or?1900)
　　Proven,?industry-leading?Aero?II?technology
　　Best-in-class?performance
　　Complete?power?management?unit?(PMU)?subsystem?
　　Integrated?battery-charging?circuitry
　　Integrates?all?voltage?regulators?(LDOs?and?DC/DC)
　　Integrated?audio?subsystem?
　　MP3?playback?with?support?for?SD?card
　　40?voice?polyphonic?MIDI?+?MP3?ringtones
　　Microphone?amplifi?er?with?two?differential?inputs
　　Two?differential?audio?output?amplifiers
　　HR/FR/EFR/AMR?vocoders
　　Alternate?40-kS/s?audio?mode?for?polyphonic?ringtones
　　Speaker?phone?noise?suppression?and?echo?cancellation
　　Optimized,?flexible?system?control?
　　Integrated?26-MHz?DCXO?(only?need?XTAL)
　　Integrated?32-kHz?RTC?oscillator?(only?need?XTAL)
　　Flexible?modes?for?optimized?power?consumption
　　Comprehensive?set?of?peripheral?functions
　　Standard?package?
　　10?x?10?mm?plastic?ball?grid?array?(PBGA)
　　RoHS-compliant

PNX4903方框图:??



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