| 摘要 |
To produce a mobile telephone (1) with an amplifier chain for high dynamics, such as 80 dB dynamics for example, said chain is equipped with first amplifier means (20), operating in a first range, in combination with second amplifier means (21), operating in a second range, the two ranges covering the desired dynamics. A relative gain at each means is such that a global consumption of the chain is lower than the use of a single amplifier ensuring on its own the desired dynamics. Moreover, such means do not require shielding. Said arrangement results in an increased capability of the mobile telephone and also in reducing the production cost of said mobile telephone. |
