你的支持是我拆机的最大动力！ 这是我最近的拆机帖：
看看警察叔叔的车用暴闪LED灯内部构造是什么样的
拆几个电表，深度剖析原理，同时研究和交流各种窃电和反窃电技术（参赛）
论坛首拆一个逢赌必赢的高科技赌博神器之电子变牌器（参赛）
全球首拆一个价值3000RMB的电子镇流器，同时点亮10条40W灯管（参赛）
全球首拆一个泡水1年后还能开机的国产CECT神机，不可思议只有一个主芯片（参赛）
拆个RC802光纤收发器，偶得两个貌似很不错的激光管！微距很给力！
此机是我孩子到外面玩的时候在路边的水沟里发现的，当时是泡在水中，保守估计也有1年以上，因为有拆过的痕迹，里面的震动棒明显被人取走了，估计开不了机就随手丢水沟里了，电池早都泡烂掉了，被我丢掉了，拆开之前没抱任何希望，主要是想看看里面到底有何东西，一番折腾之后谁知给足了面子，还可以开机使用！只不过屏幕中间有点鼓了，貌似有水在里面（应该是在偏光层，因为液晶玻璃里面是密封的，不可能进水的，除非玻璃是人为打碎了），要开机才可以看见，但还不影响使用。看来国产手机的质量是杠杠的！
以后想不支持都难！看来收购三星、NOKIA、苹果指日可待！而且简单到不可思议竟然只有一个主芯片，这是我有史以来看到的最简单的手机了，后来到网上查到资料得知主控芯片是英飞凌的最低成本单芯片手机方案。对我朝能造如此神机表示祝贺！我朝威武！下面来研究一下这个神机：先来全景图 后面的标签，基本没有粘性，一拿就下来了
屏蔽盖用手一拿就掉了，估计是泡在水中太久了的缘故，露出了主电路版，主控芯片只有一个，其它的两个分别是内存和功放
功放型号是：RDA6256，内存貌似是32M的
到网上查到资料得知主控芯片是英飞凌的最低成本单芯片手机方案，芯片具体型号是：X-GOLDTM102 PMB7890
这里是详细的资料
Infineon X-Gold 102单片超低成本手机解决方案 Infineon公司的X-Gold 102是单片超低成本(ULC)手机解决方案.X-GOLDTM102 PMB7890单片集成了GSM基带,RF收发器,混频信号,功率管理和SRAM,具有于4层
PCB的最低系统成本, 8 x 8mm PG-VF2BGA-189无铅封装,非常适用于ULC音乐手机,支持彩色显示,MP3播放,FM收音机录音以及USB充电.本文介绍了单片超低成本(ULC)手机解决方案的系统方框图以及手机的主要优势.
X-GOLDTM102: Single-Chip Solution for ULC color and music phones
The X-GOLDTM102 is an extension of the Infineon single-chip family providing entertainment features to ULC handsets at lowest cost. The singlechip is an ideal solution for ULC Music Phones supporting key features such as color displays, MP3 playback, FM radio recording and USB charging.
Infineon’s single-chip solutions enable handset manufacturers to differentiate in the market by providing the lowest cost solutions based on IP and technologies already in high volume production. X-GOLDTM102 will be provided as part of a platform solution XMMTM1020 which encompasses a comprehensive suite of development tools and support package to customers for shortest time-to-market. This pre-tested platform delivers best-in-class RF performance, highest voice quality, well-proven protocol stack, smallest form factor, as well as lowest bill-of-material thereby creating highest customer value and differentiation in the market.
X-GOLDTM102 PMB7890单片集成了:
GSM baseband, RF transceiver, mixed signal, power management and SRAM in a single-chip
Optimized for lowest system costs with 4-layer PCB and low via count
Highest integration in 8 x 8mm PG-VF2BGA-189 lead free package
主要特性:
Baseband
C166V2 104 MHz
SRAM for GSM voice-centric color phones
Security RSA/SHA-1 accelerator
Speech codecs : FR/HR/EFR/NB-AMR
Up to 32 voices MIDI, AMR, ADPCM ringtones
Support for MP3 playback
SA
IC and TTY
Radio Subsystem
Direct conversion receiver
Fully integrated digital controlled XO
Fully digital RF-Synthesizer including SD-Transmitter
Connectivity
FM radio recording function
Direct (U) SIM 1.8/3V
Interface for Bluetooth and WLAN
Memory card interface
Mixed Signal
Integrated high-output power loudspeaker
Differential microphone, earpiece and headset support
Power Management
Direct-to-battery connection (DC/DC converter for white LEDs, LDOs)
Regulators for all digital, mixed signal and RF cores
DC/DC converter for white LED voltage generation
USB charging
主要优势:
Lowest modem area < 6cm2, < 100 components
4-layer PCB
FM radio recording function
USB charging
Infineon software solution
Infineon user interface
Infineon multimedia framework
Multimedia player
GSM release 99
Scalability
Bluetooth
FM radio
USB charging
取下四个固定螺丝，就很容易取下电路板
出来啦
放大电路板
来个比较清晰点的
这个功放的型号看得清晰些
拆开上盖
屏幕和键盘
单芯片竟然还有手电筒功能，看来不支持国产不行！
