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Wireless chip development trend analysis

SOT 23-5 package for LEDo search of a wireless chip, electronic products, 7 World web site related articles. Programs, including the modem, multimedia, radio function, reception,[link widoczny dla zalogowanych], transmission, power management and all functions were all integrated into a chip. With the increasing communications chip supports multimedia features, this process also raised some new mobile phone chip issues and challenges. For example, how to achieve low power consumption is a very important issue. Qualcomm in response to this challenge when there are three measures: first, the software into hardware, the more multimedia features directly into the chip can reduce the consumption of energy; second, the importance of power management; Third, reduce power consumption technologies,[link widoczny dla zalogowanych], such as manufacturing process from l30 nm to 90 nm, and then to 65 nm. April 5, 2006, Qualcomm launched ahead of the network for CDMA20001xEV-DORevisionA M6800 chipset, 65 nm samples, processing technology to support highly integrated, low power consumption, more compact but feature-rich devices. Processors in mobile phones, Qualcomm's \The microprocessor features a sophisticated micro-architecture and advanced power management and circuit design technology for the new multimedia performance, which is the next generation of advanced mobile devices is an important requirement. Conclusion communication device research and development (R & D) will be as technology advances and changes in market demand and continue to develop, but the future of R & D has developed far beyond a simple communication device, the device developers need for handset manufacturers combined determine the proper function to provide the necessary performance,[link widoczny dla zalogowanych], and handset manufacturers need help to make work properly with the components. This means that software and hardware reference design will become increasingly important. At the same time, developers also need a digital processor architecture and design, analog IC design and RF design with strong skills. According to statistics, Shenzhen has become a global mobile phone of all, China has become the world's communications products production base, but our basic research and development level is still far behind the world. How to use the existing production scale advantages to help improve our own R & D level is the basis of the device we need to think about in depth, after all, only an expedient measure foundry, can only hold the pulse of technology to better serve the thriving information industry out recipe for growth. Push Maxim: to provide two-way transceiver SONET / SDH clock card in a compact package of the DS3100 is an early 17mmx17mmCSBGA for SONET / SDH single-chip synchronous clock card program. It has 2-way DPLL,[link widoczny dla zalogowanych], 4 way AP1L, l4 inputs, 11 outputs and 2 complete DS1/E1 transceivers, the central clock card application integrated all the necessary functions. With appropriate TCXO or OCXO, the device can support all international network synchronization standards. The device also greatly simplified SONET / SDH port device circuit design of the central clock, DS3100's high integration and flexibility eliminates the need for PLL design and adjust the separation L, the board designers no longer worried about PcB sensitive analog nodes do not have to consider the transfer function of loop balance or complex DSP algorithms, all functions are integrated within the DS3100. DS3100 can continue to monitor up to l4 state and input clock frequency accuracy,[link widoczny dla zalogowanych], the internal reference clock selection circuit for the two DPLL, can automatically select the highest priority valid input clock. T4DPLL often used to SONET / SDH clock input clock into a DS1/E1, and its way through the chip or two DS1/El transmitter passed to external BITS / SSU. Featured TODPLL the rest of the circuit for the system clock, and that the input reference clock can be configured to the SONET clock to provide the ground or from an external BITS / SSU through the provision of on-chip DS1/El receivers. TODPLL to provide filtering for the system to maintain and construct the phase function, configured to meet a variety of applications. Each DPLL frequency through follow-up with the clock multiplier feature APLL, jitter attenuation, 11 clock outputs can provide a variety of clock frequencies. Chen ≯ l ・ transcripts bow cooking power products t f2006.91ww ~. eeow. com. C hit
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