发明名称 |
Stacked modulator and automatic gain control amplifier |
摘要 |
A circuit arrangement that stacks a modulator and automatic gain control (AGC) amplifier so as to re-use the modulator output current to drive the AGC amplifier, thereby saving power consumption and avoiding an unnecessary signal transformation between the two stages. A balanced circuit topology is used. The modulation signal can be selected over a wide range (100 MHz to 5.4 GHz) and the circuit arrangement is therefore particularly suitable for wireless applications (e.g. GSM-EDGE) and for integrated circuit fabrication.
|
申请公布号 |
US2003045256(A1) |
申请公布日期 |
2003.03.06 |
申请号 |
US20010945546 |
申请日期 |
2001.08.31 |
申请人 |
NOKIA MOBILE PHONES LTD. |
发明人 |
PETTERSSON MARKUS;MURTOJARVI SIMO |
分类号 |
H03D7/14;H03F3/45;(IPC1-7):H04B1/02 |
主分类号 |
H03D7/14 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|