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A Multi-Band GSM/GPRS Power Amplifier Controller
Overview Global System for Mobile Communications (GSM) is the most popular cellular phone system in the world. Because GMSK modulation has a constant envelope, a class C RF power amplifier is used to maximize power efficiency. The European Telecommunications Standards Institute (ETSI) has specified cellular phone output power requirements. All cellular phones have to meet the requirement of transmit time mask, spectral mask, harmonics distortion, and output power level, output noise, etc. To control a class C power amplifier to meet all the above specifications is not straightforward, thus, National Semiconductor has a GSM/GPRS Power Amplifier Controller (PAC), the LMV243, to resolve this difficult problem.
| Publisher | National Semiconductor | File Format | |
|---|---|---|---|
| Date Published | March 2003 | Downloads | 1 |
| Format | White Papers | ||
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