ATA5425单片机产品破解与烧录特性_单片机破解_深圳市龙芯世纪科技有限公司

我司在提供各类IC解密、单片机解密技术服务时，首先会对芯片本身的技术特性、内部结构及其加密性质进行技术分析，对于疑难型IC芯片，我们的解密工程师还会先用空片进行解密方案测试，在确保解密服务能达到90%以上的成功率后才对芯片进行开片和技术分析，并开发出最具可靠性和经济价值的解密方案，为广大客户提供全方位技术支持。以下是此次ATA5425芯片技术特性简介：
采用四面48脚封装。ATA5428是一款包含了射频功能和逻辑控制功能的集成电路。可以工作于431.5MHz~436.5MHz。ATA5428具有低功耗和高集成度，传输的距离远，接收的灵敏度高等优点，其内部集成压控振荡器、锁相环电路、功率放大电路、解调电路、变频器、中放电路等。由于高度的集成化使复杂无线电路大大简化，以往较难处理的射频部分，被简化到只需在IC外围加上几个免调试的分立元件。
ATA5428内部含有自动定时接收唤醒数字逻辑控制电路，可以设定唤醒的周期，选择这个功能后仅仅增加一些收发延迟，但会成倍的降低接收功耗。
ATA5428内部含有7个控制寄存器，可以非常简单的对频率、收发速率、调制方式进行设置。ATA5428内部还包含一个16字节先进先出RAM缓冲器，利用这个功能减少对MCU的依赖，使MCU有更多的时间处理其它的事务。所以，MCU既使运行在比较低的频率，在收发双方不小于100ms响应下，依然能够正常工作。
Features
·  Multi  Channel  Half-duplex  Transceiver  with  Approximately  ±2.5  MHz  Programmable  Tuning  Range
·  High  FSK  Sensitivity:  –106  dBm  at  20  Kbit/s/–109.5  dBm  at  2.4  Kbit/s  (433.92  MHz)
·  High  ASK  Sensitivity:  –112.5  dBm  at  10  Kbit/s/–116.5  dBm  at  2.4  Kbit/s  (433.92  MHz)
·  Low  Supply  Current:  10.5  mA  in  RX  and  TX  Mode  (3V/TX  with  5  dBm)
·  Data  Rate:  1  to  20  Kbit/s  Manchester  FSK,  1  to  10  Kbit/s  Manchester  ASK
·  ASK/FSK  Receiver  Uses  a  Low-IF  Architecture  with  High  Selectivity,  Blocking,  and  Low  Intermodulation  (Typical  Blocking  55  dB  at  ±750  kHz/61  dB  at  ±1.5  MHz  and  70  dB  at  ±10  MHz,  System  I1dBCP  =  –30  dBm/System  IIP3  =  –20  dBm)
·  226  kHz/237  kHz  IF  Frequency  with  30  dB  Image  Rejection  and  170  kHz  Usable  IF  Bandwidth
·  Transmitter  Uses  Closed  Loop  Fractional-N  Synthesizer  for  FSK  Modulation  with  a  High  PLL  Bandwidth  and  an  Excellent  Isolation  between  PLL/VCO  and  PA
·  Tolerances  of  XTAL  Compensated  by  Fractional-N  Synthesizer  with  800  Hz  RF  Resolution
·  Integrated  RX/TX-Switch,  Single-ended  RF  Input  and  Output
·  RSSI  (Received  Signal  Strength  Indicator)
·  Communication  to  Microcontroller  with  SPI  Interface  Working  at  Maximum  500  kBit/s
·  Configurable  Self  Polling  and  RX/TX  Protocol  Handling  with  FIFO-RAM  Buffering  of  Received  and  Transmitted  Data
·  5  Push  Button  Inputs  and  One  Wake-up  Input  are  Active  in  Power-down  Mode
·  Integrated  XTAL  Capacitors
·  PA  Efficiency:  up  to  38%  (433.92  MHz/10  dBm/3V)
·  Low  In-band  Sensitivity  Change  of  Typically  ±1.8  dB  within  ±58  kHz  Center  Frequency  Change  in  the  Complete  Temperature  and  Supply  Voltage  Range
·  Supply  Voltage  Switch,  Supply  Voltage  Regulator,  Reset  Generation,  Clock/Interrupt  Generation  and  Low  Battery  Indicator  for  Microcontroller
·  Fully  Integrated  PLL  with  Low  Phase  Noise  VCO,  PLL  Loop  Filter  and  Full  Support  of  Multi-channel  Operation  with  Arbitrary  Channel  Distance  Due  to  Fractional-N  Synthesizer
·  Sophisticated  Threshold  Control  and  Quasi-peak  Detector  Circuit  in  the  Data  Slicer
·  Power  Management  via  Different  Operation  Modes
·  315  MHz,  345  MHz,  433.92  MHz,  868.3  MHz  and  915  MHz  without  External  VCO  and  PLL  Components
·  Inductive  Supply  with  Voltage  Regulator  if  Battery  is  Empty  (AUX  Mode)
·  Efficient  XTO  Start-up  Circuit  (>  –1.5  kΩ  Worst  Case  Real  Start-up  Impedance)
·  Changing  of  Modulation  Type  ASK/FSK  and  Data  Rate  without  Component  Changes
·  Minimal  External  Circuitry  Requirements  for  Complete  System  Solution
·  Adjustable  Output  Power:  0  to  10  dBm  Adjusted  and  Stabilized  with  External  Resistor
·  ESD  Protection  at  all  Pins  (1.5  kV  HBM,  200V  MM,  1  kV  FCDM)
·  Supply  Voltage  Range:  2.4V  to  3.6V  or  4.4V  to  6.6V
·  Temperature  Range:  –40°C  to  +85°C
·  Small  7  ×  7  mm  QFN48  Package
有ATA5425等单片机需求者欢迎与我司研究所联系咨询解密详情！更多资料访问：http://www.icinf.com

ATA5425单片机产品破解与烧录特性

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