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| NS PDA解决方案 | |||||
作者：NS 文章来源：本站 点击数： 更新时间：2007-3-18  |
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 The Personal Digital Assistant is primarily a productivity and communications tool that is lightweight, compact, durable, reliable, easy to use, and integrates into existing operations. PDAs have continued to evolve and expand in functionality as technology catches up to consumer requirements, including ease of use, compatibility, and lower costs. National strives to meet these requirements with PDA solutions that will provide users with the computing, information storage, and data retrieval capabilities that they need to organize their personal/business life. Component Highlights * White LED drivers - efficient, low noise, and simple to control, these drivers produce brightness matching and color uniformity in chip-scale packages. * Battery chargers - analog and microcontroller-based chargers address common chemistries with factory and customer programming. * LDOs - low-voltage, low-power CMOS regulators have extremely low dropout and low noise, ideal for battery backup supply. * Step-down regulators - DC/DC buck converters and linear regulators provide low-ripple, precise voltages to processors and power amplifiers while extending battery life. * PLLs - single/dual integer and fractional PLLs have low current consumption and excellent phase noise performance. * AC97 audio codecs - integrated with Nationals 3D sound circuitry. * Audio amplifiers - Boomer® amplifiers consume little power and require few external parts. 1 Power Amp LMV225TL LMV225TLX LMV226TL 2 Wireless RF LMX2310U LMX2311U LMX2312U 3 AC97 Codec ADC08060 ADC08100 ADC081000 4 Boomer Audio Amp LM4665 LM4820-6 LM4846 5 Mic PreAmp & Buffer LMV1012 LMV1015 LMV1032 6 Display Lighting LM2704 LM2705 LM2750 7 Temp Sensor LM26CIM5-ZHA LM26CIM5-YPA LM26CIM5-YHA 8 Charger LM3655TL LM3655TLX LM3658SD 9 Backup LP3987IBL-2.85 LP3987IBLX-2.85 LP3987ITL-2.85 10 voltage Regulator LM2612 LM2612BL LM2614 |
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