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BA01224
Achieved industry top class operation efficiency of 42% and low idle current of 40mA with small size of 0.02 cc
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Outline
With the domestic CDMA2000 1x system, services utilizing 00 MHz band and 2 GHz and frequencies are provided. There is a need for extended call duration as well as miniaturization and weight saving for the handsets. For this, miniaturization of the parts and improvement of the operation efficiency of the power amplifier, which takes up a large portion of the consumption current during a call, is essential. We have developed a small power amplifier, which achieved top class high efficiency operation in 2 GHz, and we anticipate increased demand in the future.
Features
Achieved top class operation efficiency of 42% and lengthened the call duration of cellular phone handsets. By optimizing the module matching circuit and the construction and size of transistors, we have achieved the top level of electrical efficiency of 42% and low idle current of 40mA.
We miniaturized the cellular phone handset by miniaturizing and lowering the height by resin sealing package construction. We have achieved miniaturization to a volume of 0.02cc(*) by our resin sealing packaging technology.
*0.02cc: 4 x 4 x 1.2mm3
Applications
Perfect for power amplifiers for CDMA2000 1x system 2 Ghz band cellular phone handset
Future Deployment
We will aim for further improvement of the efficiency and accommodation of high speed communication systems as well as further miniaturization by utilizing the MIC, Microwave Monolithic IC.
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